/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stack-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 17:32:41,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 17:32:41,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 17:32:41,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 17:32:41,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 17:32:41,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 17:32:41,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 17:32:41,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 17:32:41,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 17:32:41,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 17:32:41,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 17:32:41,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 17:32:41,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 17:32:41,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 17:32:41,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 17:32:41,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 17:32:41,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 17:32:41,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 17:32:41,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 17:32:41,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 17:32:41,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 17:32:41,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 17:32:41,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 17:32:41,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 17:32:41,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 17:32:41,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 17:32:41,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 17:32:41,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 17:32:41,441 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-27 17:32:41,475 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 17:32:41,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 17:32:41,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 17:32:41,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 17:32:41,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 17:32:41,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 17:32:41,483 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 17:32:41,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 17:32:41,483 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 17:32:41,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 17:32:41,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 17:32:41,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 17:32:41,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 17:32:41,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 17:32:41,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 17:32:41,484 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 17:32:41,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 17:32:41,485 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 17:32:41,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 17:32:41,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 17:32:41,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 17:32:41,485 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 17:32:41,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 17:32:41,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 17:32:41,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 17:32:41,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 17:32:41,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 17:32:41,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 17:32:41,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 17:32:41,486 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 17:32:41,486 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 17:32:41,486 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 17:32:41,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 17:32:41,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 17:32:41,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 17:32:41,877 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 17:32:41,878 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 17:32:41,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack-1.i [2023-01-27 17:32:43,614 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 17:32:43,827 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 17:32:43,827 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-1.i [2023-01-27 17:32:43,840 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83f81cba9/e87e1c47bb914bf19605f1c7981121ab/FLAG543f399ca [2023-01-27 17:32:43,853 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83f81cba9/e87e1c47bb914bf19605f1c7981121ab [2023-01-27 17:32:43,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 17:32:43,855 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 17:32:43,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 17:32:43,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 17:32:43,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 17:32:43,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 05:32:43" (1/1) ... [2023-01-27 17:32:43,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16466d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:32:43, skipping insertion in model container [2023-01-27 17:32:43,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 05:32:43" (1/1) ... [2023-01-27 17:32:43,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 17:32:43,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 17:32:44,464 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-1.i[41520,41533] [2023-01-27 17:32:44,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 17:32:44,535 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 17:32:44,571 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack-1.i[41520,41533] [2023-01-27 17:32:44,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 17:32:44,664 INFO L208 MainTranslator]: Completed translation [2023-01-27 17:32:44,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:32:44 WrapperNode [2023-01-27 17:32:44,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 17:32:44,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 17:32:44,683 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 17:32:44,683 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 17:32:44,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:32:44" (1/1) ... [2023-01-27 17:32:44,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:32:44" (1/1) ... [2023-01-27 17:32:44,757 INFO L138 Inliner]: procedures = 277, calls = 43, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 153 [2023-01-27 17:32:44,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 17:32:44,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 17:32:44,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 17:32:44,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 17:32:44,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:32:44" (1/1) ... [2023-01-27 17:32:44,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:32:44" (1/1) ... [2023-01-27 17:32:44,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:32:44" (1/1) ... [2023-01-27 17:32:44,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:32:44" (1/1) ... [2023-01-27 17:32:44,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:32:44" (1/1) ... [2023-01-27 17:32:44,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:32:44" (1/1) ... [2023-01-27 17:32:44,805 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:32:44" (1/1) ... [2023-01-27 17:32:44,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:32:44" (1/1) ... [2023-01-27 17:32:44,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 17:32:44,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 17:32:44,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 17:32:44,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 17:32:44,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:32:44" (1/1) ... [2023-01-27 17:32:44,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 17:32:44,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 17:32:44,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-27 17:32:44,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-27 17:32:44,964 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-01-27 17:32:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-01-27 17:32:44,964 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-01-27 17:32:44,964 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-01-27 17:32:44,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 17:32:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 17:32:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 17:32:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 17:32:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 17:32:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 17:32:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 17:32:44,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 17:32:44,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 17:32:44,971 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 17:32:45,152 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 17:32:45,162 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 17:32:45,611 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 17:32:45,618 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 17:32:45,619 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-01-27 17:32:45,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 05:32:45 BoogieIcfgContainer [2023-01-27 17:32:45,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 17:32:45,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 17:32:45,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 17:32:45,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 17:32:45,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 05:32:43" (1/3) ... [2023-01-27 17:32:45,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2848dcc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 05:32:45, skipping insertion in model container [2023-01-27 17:32:45,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:32:44" (2/3) ... [2023-01-27 17:32:45,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2848dcc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 05:32:45, skipping insertion in model container [2023-01-27 17:32:45,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 05:32:45" (3/3) ... [2023-01-27 17:32:45,627 INFO L112 eAbstractionObserver]: Analyzing ICFG stack-1.i [2023-01-27 17:32:45,640 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 17:32:45,640 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-27 17:32:45,640 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 17:32:45,719 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-27 17:32:45,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 152 places, 155 transitions, 326 flow [2023-01-27 17:32:45,815 INFO L130 PetriNetUnfolder]: 10/153 cut-off events. [2023-01-27 17:32:45,815 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 17:32:45,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 153 events. 10/153 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 348 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 111. Up to 3 conditions per place. [2023-01-27 17:32:45,821 INFO L82 GeneralOperation]: Start removeDead. Operand has 152 places, 155 transitions, 326 flow [2023-01-27 17:32:45,826 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 144 transitions, 297 flow [2023-01-27 17:32:45,829 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 17:32:45,839 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 144 transitions, 297 flow [2023-01-27 17:32:45,842 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 144 transitions, 297 flow [2023-01-27 17:32:45,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 144 transitions, 297 flow [2023-01-27 17:32:45,898 INFO L130 PetriNetUnfolder]: 10/144 cut-off events. [2023-01-27 17:32:45,898 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 17:32:45,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 144 events. 10/144 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 309 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 111. Up to 3 conditions per place. [2023-01-27 17:32:45,903 INFO L119 LiptonReduction]: Number of co-enabled transitions 6492 [2023-01-27 17:32:50,385 INFO L134 LiptonReduction]: Checked pairs total: 8991 [2023-01-27 17:32:50,385 INFO L136 LiptonReduction]: Total number of compositions: 135 [2023-01-27 17:32:50,402 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 17:32:50,420 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;@19898309, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 17:32:50,420 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-01-27 17:32:50,440 INFO L130 PetriNetUnfolder]: 1/15 cut-off events. [2023-01-27 17:32:50,440 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 17:32:50,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:32:50,441 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-27 17:32:50,442 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:32:50,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:32:50,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1268975004, now seen corresponding path program 1 times [2023-01-27 17:32:50,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:32:50,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505735264] [2023-01-27 17:32:50,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:32:50,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:32:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:32:50,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:32:50,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:32:50,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505735264] [2023-01-27 17:32:50,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505735264] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 17:32:50,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 17:32:50,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 17:32:50,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170914843] [2023-01-27 17:32:50,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 17:32:50,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 17:32:50,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:32:50,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 17:32:50,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 17:32:50,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 290 [2023-01-27 17:32:50,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 32 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:50,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:32:50,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 290 [2023-01-27 17:32:50,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:32:51,133 INFO L130 PetriNetUnfolder]: 661/1082 cut-off events. [2023-01-27 17:32:51,133 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2023-01-27 17:32:51,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2223 conditions, 1082 events. 661/1082 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4006 event pairs, 283 based on Foata normal form. 0/854 useless extension candidates. Maximal degree in co-relation 2034. Up to 687 conditions per place. [2023-01-27 17:32:51,141 INFO L137 encePairwiseOnDemand]: 285/290 looper letters, 50 selfloop transitions, 3 changer transitions 0/53 dead transitions. [2023-01-27 17:32:51,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 53 transitions, 227 flow [2023-01-27 17:32:51,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 17:32:51,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 17:32:51,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 448 transitions. [2023-01-27 17:32:51,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5149425287356322 [2023-01-27 17:32:51,172 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 448 transitions. [2023-01-27 17:32:51,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 448 transitions. [2023-01-27 17:32:51,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:32:51,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 448 transitions. [2023-01-27 17:32:51,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:51,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:51,184 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:51,202 INFO L175 Difference]: Start difference. First operand has 34 places, 32 transitions, 73 flow. Second operand 3 states and 448 transitions. [2023-01-27 17:32:51,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 53 transitions, 227 flow [2023-01-27 17:32:51,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 53 transitions, 219 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-27 17:32:51,207 INFO L231 Difference]: Finished difference. Result has 34 places, 33 transitions, 85 flow [2023-01-27 17:32:51,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=34, PETRI_TRANSITIONS=33} [2023-01-27 17:32:51,211 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 0 predicate places. [2023-01-27 17:32:51,211 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 33 transitions, 85 flow [2023-01-27 17:32:51,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:51,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:32:51,211 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:32:51,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 17:32:51,212 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:32:51,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:32:51,217 INFO L85 PathProgramCache]: Analyzing trace with hash -575844582, now seen corresponding path program 1 times [2023-01-27 17:32:51,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:32:51,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130084588] [2023-01-27 17:32:51,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:32:51,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:32:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:32:51,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:32:51,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:32:51,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130084588] [2023-01-27 17:32:51,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130084588] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 17:32:51,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 17:32:51,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 17:32:51,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422126150] [2023-01-27 17:32:51,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 17:32:51,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 17:32:51,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:32:51,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 17:32:51,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 17:32:51,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 290 [2023-01-27 17:32:51,366 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 33 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:51,366 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:32:51,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 290 [2023-01-27 17:32:51,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:32:51,558 INFO L130 PetriNetUnfolder]: 625/1064 cut-off events. [2023-01-27 17:32:51,558 INFO L131 PetriNetUnfolder]: For 109/109 co-relation queries the response was YES. [2023-01-27 17:32:51,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2244 conditions, 1064 events. 625/1064 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4657 event pairs, 314 based on Foata normal form. 0/906 useless extension candidates. Maximal degree in co-relation 2008. Up to 926 conditions per place. [2023-01-27 17:32:51,563 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 45 selfloop transitions, 3 changer transitions 0/50 dead transitions. [2023-01-27 17:32:51,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 50 transitions, 222 flow [2023-01-27 17:32:51,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 17:32:51,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 17:32:51,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 462 transitions. [2023-01-27 17:32:51,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5310344827586206 [2023-01-27 17:32:51,564 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 462 transitions. [2023-01-27 17:32:51,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 462 transitions. [2023-01-27 17:32:51,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:32:51,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 462 transitions. [2023-01-27 17:32:51,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.0) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:51,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:51,568 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:51,568 INFO L175 Difference]: Start difference. First operand has 34 places, 33 transitions, 85 flow. Second operand 3 states and 462 transitions. [2023-01-27 17:32:51,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 50 transitions, 222 flow [2023-01-27 17:32:51,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 50 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 17:32:51,570 INFO L231 Difference]: Finished difference. Result has 36 places, 34 transitions, 97 flow [2023-01-27 17:32:51,570 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=36, PETRI_TRANSITIONS=34} [2023-01-27 17:32:51,570 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 2 predicate places. [2023-01-27 17:32:51,571 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 34 transitions, 97 flow [2023-01-27 17:32:51,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:51,571 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:32:51,571 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:32:51,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 17:32:51,582 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:32:51,582 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:32:51,582 INFO L85 PathProgramCache]: Analyzing trace with hash -884871179, now seen corresponding path program 1 times [2023-01-27 17:32:51,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:32:51,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697437817] [2023-01-27 17:32:51,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:32:51,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:32:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:32:51,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:32:51,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:32:51,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697437817] [2023-01-27 17:32:51,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697437817] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 17:32:51,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899746240] [2023-01-27 17:32:51,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:32:51,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 17:32:51,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 17:32:51,755 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 17:32:51,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-27 17:32:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:32:51,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjunts are in the unsatisfiable core [2023-01-27 17:32:51,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 17:32:52,032 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:32:52,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 17:32:52,106 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:32:52,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899746240] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 17:32:52,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 17:32:52,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-01-27 17:32:52,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928717720] [2023-01-27 17:32:52,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 17:32:52,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-27 17:32:52,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:32:52,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-27 17:32:52,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-01-27 17:32:52,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 290 [2023-01-27 17:32:52,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 97 flow. Second operand has 10 states, 10 states have (on average 132.4) internal successors, (1324), 10 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:52,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:32:52,110 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 290 [2023-01-27 17:32:52,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:32:52,748 INFO L130 PetriNetUnfolder]: 1619/2654 cut-off events. [2023-01-27 17:32:52,748 INFO L131 PetriNetUnfolder]: For 839/839 co-relation queries the response was YES. [2023-01-27 17:32:52,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6125 conditions, 2654 events. 1619/2654 cut-off events. For 839/839 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 12096 event pairs, 246 based on Foata normal form. 82/2392 useless extension candidates. Maximal degree in co-relation 5686. Up to 795 conditions per place. [2023-01-27 17:32:52,775 INFO L137 encePairwiseOnDemand]: 282/290 looper letters, 155 selfloop transitions, 26 changer transitions 3/184 dead transitions. [2023-01-27 17:32:52,775 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 184 transitions, 855 flow [2023-01-27 17:32:52,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-27 17:32:52,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-27 17:32:52,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1735 transitions. [2023-01-27 17:32:52,778 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4985632183908046 [2023-01-27 17:32:52,778 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1735 transitions. [2023-01-27 17:32:52,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1735 transitions. [2023-01-27 17:32:52,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:32:52,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1735 transitions. [2023-01-27 17:32:52,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 144.58333333333334) internal successors, (1735), 12 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:52,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 290.0) internal successors, (3770), 13 states have internal predecessors, (3770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:52,789 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 290.0) internal successors, (3770), 13 states have internal predecessors, (3770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:52,790 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 97 flow. Second operand 12 states and 1735 transitions. [2023-01-27 17:32:52,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 184 transitions, 855 flow [2023-01-27 17:32:52,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 184 transitions, 840 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 17:32:52,811 INFO L231 Difference]: Finished difference. Result has 54 places, 59 transitions, 309 flow [2023-01-27 17:32:52,812 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=309, PETRI_PLACES=54, PETRI_TRANSITIONS=59} [2023-01-27 17:32:52,813 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 20 predicate places. [2023-01-27 17:32:52,813 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 59 transitions, 309 flow [2023-01-27 17:32:52,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 132.4) internal successors, (1324), 10 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:52,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:32:52,814 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:32:52,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-27 17:32:53,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 17:32:53,019 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:32:53,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:32:53,019 INFO L85 PathProgramCache]: Analyzing trace with hash 2024911666, now seen corresponding path program 1 times [2023-01-27 17:32:53,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:32:53,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142751719] [2023-01-27 17:32:53,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:32:53,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:32:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:32:53,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:32:53,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:32:53,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142751719] [2023-01-27 17:32:53,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142751719] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 17:32:53,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 17:32:53,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 17:32:53,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029085873] [2023-01-27 17:32:53,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 17:32:53,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 17:32:53,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:32:53,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 17:32:53,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 17:32:53,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 290 [2023-01-27 17:32:53,138 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 59 transitions, 309 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:53,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:32:53,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 290 [2023-01-27 17:32:53,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:32:53,237 INFO L130 PetriNetUnfolder]: 509/974 cut-off events. [2023-01-27 17:32:53,238 INFO L131 PetriNetUnfolder]: For 586/586 co-relation queries the response was YES. [2023-01-27 17:32:53,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2480 conditions, 974 events. 509/974 cut-off events. For 586/586 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4145 event pairs, 98 based on Foata normal form. 0/886 useless extension candidates. Maximal degree in co-relation 2336. Up to 681 conditions per place. [2023-01-27 17:32:53,248 INFO L137 encePairwiseOnDemand]: 285/290 looper letters, 45 selfloop transitions, 6 changer transitions 0/57 dead transitions. [2023-01-27 17:32:53,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 57 transitions, 348 flow [2023-01-27 17:32:53,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 17:32:53,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 17:32:53,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions. [2023-01-27 17:32:53,250 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5057471264367817 [2023-01-27 17:32:53,250 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 440 transitions. [2023-01-27 17:32:53,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 440 transitions. [2023-01-27 17:32:53,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:32:53,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 440 transitions. [2023-01-27 17:32:53,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:53,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:53,253 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:53,253 INFO L175 Difference]: Start difference. First operand has 54 places, 59 transitions, 309 flow. Second operand 3 states and 440 transitions. [2023-01-27 17:32:53,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 57 transitions, 348 flow [2023-01-27 17:32:53,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 327 flow, removed 6 selfloop flow, removed 5 redundant places. [2023-01-27 17:32:53,260 INFO L231 Difference]: Finished difference. Result has 48 places, 48 transitions, 216 flow [2023-01-27 17:32:53,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=48, PETRI_TRANSITIONS=48} [2023-01-27 17:32:53,261 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 14 predicate places. [2023-01-27 17:32:53,262 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 48 transitions, 216 flow [2023-01-27 17:32:53,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:53,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:32:53,262 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:32:53,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-27 17:32:53,262 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:32:53,263 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:32:53,263 INFO L85 PathProgramCache]: Analyzing trace with hash 2104323153, now seen corresponding path program 1 times [2023-01-27 17:32:53,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:32:53,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776755160] [2023-01-27 17:32:53,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:32:53,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:32:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:32:53,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:32:53,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:32:53,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776755160] [2023-01-27 17:32:53,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776755160] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 17:32:53,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 17:32:53,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 17:32:53,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214050594] [2023-01-27 17:32:53,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 17:32:53,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 17:32:53,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:32:53,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 17:32:53,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 17:32:53,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 290 [2023-01-27 17:32:53,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 48 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:53,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:32:53,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 290 [2023-01-27 17:32:53,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:32:53,536 INFO L130 PetriNetUnfolder]: 624/1145 cut-off events. [2023-01-27 17:32:53,537 INFO L131 PetriNetUnfolder]: For 351/351 co-relation queries the response was YES. [2023-01-27 17:32:53,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2962 conditions, 1145 events. 624/1145 cut-off events. For 351/351 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4697 event pairs, 391 based on Foata normal form. 24/1169 useless extension candidates. Maximal degree in co-relation 2382. Up to 849 conditions per place. [2023-01-27 17:32:53,541 INFO L137 encePairwiseOnDemand]: 284/290 looper letters, 56 selfloop transitions, 6 changer transitions 0/62 dead transitions. [2023-01-27 17:32:53,541 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 62 transitions, 383 flow [2023-01-27 17:32:53,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 17:32:53,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 17:32:53,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2023-01-27 17:32:53,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5103448275862069 [2023-01-27 17:32:53,543 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 444 transitions. [2023-01-27 17:32:53,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 444 transitions. [2023-01-27 17:32:53,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:32:53,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 444 transitions. [2023-01-27 17:32:53,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:53,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:53,563 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:53,563 INFO L175 Difference]: Start difference. First operand has 48 places, 48 transitions, 216 flow. Second operand 3 states and 444 transitions. [2023-01-27 17:32:53,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 62 transitions, 383 flow [2023-01-27 17:32:53,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 62 transitions, 375 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 17:32:53,566 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 248 flow [2023-01-27 17:32:53,566 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2023-01-27 17:32:53,568 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 17 predicate places. [2023-01-27 17:32:53,569 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 248 flow [2023-01-27 17:32:53,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:53,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:32:53,569 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:32:53,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-27 17:32:53,569 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:32:53,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:32:53,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1299614568, now seen corresponding path program 1 times [2023-01-27 17:32:53,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:32:53,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530505681] [2023-01-27 17:32:53,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:32:53,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:32:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:32:54,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:32:54,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:32:54,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530505681] [2023-01-27 17:32:54,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530505681] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 17:32:54,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 17:32:54,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-01-27 17:32:54,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712853812] [2023-01-27 17:32:54,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 17:32:54,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-01-27 17:32:54,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:32:54,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-01-27 17:32:54,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-01-27 17:32:54,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 290 [2023-01-27 17:32:54,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 248 flow. Second operand has 15 states, 15 states have (on average 91.4) internal successors, (1371), 15 states have internal predecessors, (1371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:54,695 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:32:54,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 290 [2023-01-27 17:32:54,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:32:56,030 INFO L130 PetriNetUnfolder]: 930/1729 cut-off events. [2023-01-27 17:32:56,030 INFO L131 PetriNetUnfolder]: For 1197/1197 co-relation queries the response was YES. [2023-01-27 17:32:56,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4454 conditions, 1729 events. 930/1729 cut-off events. For 1197/1197 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7889 event pairs, 174 based on Foata normal form. 32/1747 useless extension candidates. Maximal degree in co-relation 2915. Up to 973 conditions per place. [2023-01-27 17:32:56,036 INFO L137 encePairwiseOnDemand]: 272/290 looper letters, 111 selfloop transitions, 38 changer transitions 30/179 dead transitions. [2023-01-27 17:32:56,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 179 transitions, 984 flow [2023-01-27 17:32:56,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-01-27 17:32:56,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-01-27 17:32:56,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2326 transitions. [2023-01-27 17:32:56,041 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3341954022988506 [2023-01-27 17:32:56,041 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2326 transitions. [2023-01-27 17:32:56,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2326 transitions. [2023-01-27 17:32:56,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:32:56,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2326 transitions. [2023-01-27 17:32:56,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 96.91666666666667) internal successors, (2326), 24 states have internal predecessors, (2326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:56,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 290.0) internal successors, (7250), 25 states have internal predecessors, (7250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:56,053 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 290.0) internal successors, (7250), 25 states have internal predecessors, (7250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:56,053 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 248 flow. Second operand 24 states and 2326 transitions. [2023-01-27 17:32:56,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 179 transitions, 984 flow [2023-01-27 17:32:56,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 179 transitions, 954 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-01-27 17:32:56,084 INFO L231 Difference]: Finished difference. Result has 88 places, 84 transitions, 542 flow [2023-01-27 17:32:56,085 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=542, PETRI_PLACES=88, PETRI_TRANSITIONS=84} [2023-01-27 17:32:56,086 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 54 predicate places. [2023-01-27 17:32:56,087 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 84 transitions, 542 flow [2023-01-27 17:32:56,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 91.4) internal successors, (1371), 15 states have internal predecessors, (1371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:56,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:32:56,089 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:32:56,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-27 17:32:56,099 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:32:56,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:32:56,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1750382990, now seen corresponding path program 2 times [2023-01-27 17:32:56,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:32:56,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506466002] [2023-01-27 17:32:56,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:32:56,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:32:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:32:57,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:32:57,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:32:57,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506466002] [2023-01-27 17:32:57,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506466002] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 17:32:57,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 17:32:57,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-01-27 17:32:57,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973530968] [2023-01-27 17:32:57,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 17:32:57,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-01-27 17:32:57,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:32:57,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-01-27 17:32:57,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2023-01-27 17:32:57,314 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 290 [2023-01-27 17:32:57,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 84 transitions, 542 flow. Second operand has 16 states, 16 states have (on average 87.3125) internal successors, (1397), 16 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:57,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:32:57,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 290 [2023-01-27 17:32:57,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:32:58,651 INFO L130 PetriNetUnfolder]: 1208/2259 cut-off events. [2023-01-27 17:32:58,651 INFO L131 PetriNetUnfolder]: For 2489/2489 co-relation queries the response was YES. [2023-01-27 17:32:58,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6977 conditions, 2259 events. 1208/2259 cut-off events. For 2489/2489 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 10806 event pairs, 374 based on Foata normal form. 16/2261 useless extension candidates. Maximal degree in co-relation 5574. Up to 1405 conditions per place. [2023-01-27 17:32:58,681 INFO L137 encePairwiseOnDemand]: 272/290 looper letters, 117 selfloop transitions, 32 changer transitions 23/172 dead transitions. [2023-01-27 17:32:58,681 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 172 transitions, 1221 flow [2023-01-27 17:32:58,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-01-27 17:32:58,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-01-27 17:32:58,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1329 transitions. [2023-01-27 17:32:58,700 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32733990147783254 [2023-01-27 17:32:58,700 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1329 transitions. [2023-01-27 17:32:58,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1329 transitions. [2023-01-27 17:32:58,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:32:58,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1329 transitions. [2023-01-27 17:32:58,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 94.92857142857143) internal successors, (1329), 14 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:58,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 290.0) internal successors, (4350), 15 states have internal predecessors, (4350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:58,710 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 290.0) internal successors, (4350), 15 states have internal predecessors, (4350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:58,710 INFO L175 Difference]: Start difference. First operand has 88 places, 84 transitions, 542 flow. Second operand 14 states and 1329 transitions. [2023-01-27 17:32:58,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 172 transitions, 1221 flow [2023-01-27 17:32:58,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 172 transitions, 1209 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-01-27 17:32:58,736 INFO L231 Difference]: Finished difference. Result has 108 places, 99 transitions, 756 flow [2023-01-27 17:32:58,736 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=756, PETRI_PLACES=108, PETRI_TRANSITIONS=99} [2023-01-27 17:32:58,737 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 74 predicate places. [2023-01-27 17:32:58,737 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 99 transitions, 756 flow [2023-01-27 17:32:58,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 87.3125) internal successors, (1397), 16 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:58,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:32:58,738 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:32:58,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-27 17:32:58,738 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:32:58,738 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:32:58,738 INFO L85 PathProgramCache]: Analyzing trace with hash 954194670, now seen corresponding path program 3 times [2023-01-27 17:32:58,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:32:58,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059537945] [2023-01-27 17:32:58,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:32:58,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:32:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:32:59,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:32:59,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:32:59,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059537945] [2023-01-27 17:32:59,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059537945] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 17:32:59,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 17:32:59,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-01-27 17:32:59,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501207557] [2023-01-27 17:32:59,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 17:32:59,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-01-27 17:32:59,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:32:59,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-01-27 17:32:59,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2023-01-27 17:32:59,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 290 [2023-01-27 17:32:59,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 99 transitions, 756 flow. Second operand has 16 states, 16 states have (on average 87.3125) internal successors, (1397), 16 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:32:59,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:32:59,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 290 [2023-01-27 17:32:59,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:33:00,812 INFO L130 PetriNetUnfolder]: 1356/2543 cut-off events. [2023-01-27 17:33:00,812 INFO L131 PetriNetUnfolder]: For 3554/3554 co-relation queries the response was YES. [2023-01-27 17:33:00,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8329 conditions, 2543 events. 1356/2543 cut-off events. For 3554/3554 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 12525 event pairs, 371 based on Foata normal form. 16/2545 useless extension candidates. Maximal degree in co-relation 6506. Up to 1368 conditions per place. [2023-01-27 17:33:00,845 INFO L137 encePairwiseOnDemand]: 273/290 looper letters, 117 selfloop transitions, 40 changer transitions 24/181 dead transitions. [2023-01-27 17:33:00,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 181 transitions, 1431 flow [2023-01-27 17:33:00,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-01-27 17:33:00,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-01-27 17:33:00,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1329 transitions. [2023-01-27 17:33:00,849 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32733990147783254 [2023-01-27 17:33:00,849 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1329 transitions. [2023-01-27 17:33:00,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1329 transitions. [2023-01-27 17:33:00,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:33:00,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1329 transitions. [2023-01-27 17:33:00,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 94.92857142857143) internal successors, (1329), 14 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:00,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 290.0) internal successors, (4350), 15 states have internal predecessors, (4350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:00,878 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 290.0) internal successors, (4350), 15 states have internal predecessors, (4350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:00,878 INFO L175 Difference]: Start difference. First operand has 108 places, 99 transitions, 756 flow. Second operand 14 states and 1329 transitions. [2023-01-27 17:33:00,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 181 transitions, 1431 flow [2023-01-27 17:33:00,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 181 transitions, 1403 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-01-27 17:33:00,913 INFO L231 Difference]: Finished difference. Result has 122 places, 108 transitions, 951 flow [2023-01-27 17:33:00,913 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=728, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=951, PETRI_PLACES=122, PETRI_TRANSITIONS=108} [2023-01-27 17:33:00,914 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 88 predicate places. [2023-01-27 17:33:00,915 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 108 transitions, 951 flow [2023-01-27 17:33:00,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 87.3125) internal successors, (1397), 16 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:00,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:33:00,915 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2023-01-27 17:33:00,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-27 17:33:00,915 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:33:00,916 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:33:00,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1380599275, now seen corresponding path program 2 times [2023-01-27 17:33:00,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:33:00,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755048170] [2023-01-27 17:33:00,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:33:00,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:33:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:33:01,194 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:33:01,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:33:01,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755048170] [2023-01-27 17:33:01,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755048170] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 17:33:01,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760660274] [2023-01-27 17:33:01,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 17:33:01,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 17:33:01,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 17:33:01,225 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 17:33:01,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-27 17:33:01,365 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-27 17:33:01,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 17:33:01,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 8 conjunts are in the unsatisfiable core [2023-01-27 17:33:01,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 17:33:01,427 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:33:01,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 17:33:01,496 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:33:01,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760660274] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 17:33:01,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 17:33:01,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 14 [2023-01-27 17:33:01,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283058745] [2023-01-27 17:33:01,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 17:33:01,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-01-27 17:33:01,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:33:01,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-01-27 17:33:01,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-01-27 17:33:01,499 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 290 [2023-01-27 17:33:01,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 108 transitions, 951 flow. Second operand has 15 states, 15 states have (on average 127.4) internal successors, (1911), 15 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:01,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:33:01,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 290 [2023-01-27 17:33:01,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:33:02,389 INFO L130 PetriNetUnfolder]: 1580/2955 cut-off events. [2023-01-27 17:33:02,389 INFO L131 PetriNetUnfolder]: For 5876/5876 co-relation queries the response was YES. [2023-01-27 17:33:02,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10280 conditions, 2955 events. 1580/2955 cut-off events. For 5876/5876 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 14576 event pairs, 426 based on Foata normal form. 16/2957 useless extension candidates. Maximal degree in co-relation 7325. Up to 1002 conditions per place. [2023-01-27 17:33:02,410 INFO L137 encePairwiseOnDemand]: 282/290 looper letters, 198 selfloop transitions, 48 changer transitions 6/252 dead transitions. [2023-01-27 17:33:02,410 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 252 transitions, 2170 flow [2023-01-27 17:33:02,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-01-27 17:33:02,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-01-27 17:33:02,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2294 transitions. [2023-01-27 17:33:02,414 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46531440162271803 [2023-01-27 17:33:02,414 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2294 transitions. [2023-01-27 17:33:02,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2294 transitions. [2023-01-27 17:33:02,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:33:02,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2294 transitions. [2023-01-27 17:33:02,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 134.94117647058823) internal successors, (2294), 17 states have internal predecessors, (2294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:02,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 290.0) internal successors, (5220), 18 states have internal predecessors, (5220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:02,424 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 290.0) internal successors, (5220), 18 states have internal predecessors, (5220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:02,424 INFO L175 Difference]: Start difference. First operand has 122 places, 108 transitions, 951 flow. Second operand 17 states and 2294 transitions. [2023-01-27 17:33:02,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 252 transitions, 2170 flow [2023-01-27 17:33:02,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 252 transitions, 2107 flow, removed 20 selfloop flow, removed 5 redundant places. [2023-01-27 17:33:02,460 INFO L231 Difference]: Finished difference. Result has 141 places, 127 transitions, 1259 flow [2023-01-27 17:33:02,461 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=914, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1259, PETRI_PLACES=141, PETRI_TRANSITIONS=127} [2023-01-27 17:33:02,461 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 107 predicate places. [2023-01-27 17:33:02,461 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 127 transitions, 1259 flow [2023-01-27 17:33:02,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 127.4) internal successors, (1911), 15 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:02,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:33:02,462 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:33:02,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-27 17:33:02,667 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,SelfDestructingSolverStorable8 [2023-01-27 17:33:02,667 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:33:02,668 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:33:02,668 INFO L85 PathProgramCache]: Analyzing trace with hash 934646639, now seen corresponding path program 4 times [2023-01-27 17:33:02,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:33:02,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070761769] [2023-01-27 17:33:02,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:33:02,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:33:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:33:03,652 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:33:03,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:33:03,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070761769] [2023-01-27 17:33:03,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070761769] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 17:33:03,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970038120] [2023-01-27 17:33:03,653 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-27 17:33:03,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 17:33:03,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 17:33:03,673 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 17:33:03,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-27 17:33:03,911 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-27 17:33:03,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 17:33:03,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 59 conjunts are in the unsatisfiable core [2023-01-27 17:33:03,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 17:33:04,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-01-27 17:33:05,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 45 [2023-01-27 17:33:07,343 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:33:07,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 17:33:07,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 46 [2023-01-27 17:33:08,108 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-27 17:33:08,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970038120] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-27 17:33:08,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-27 17:33:08,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [15, 15] total 43 [2023-01-27 17:33:08,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621500157] [2023-01-27 17:33:08,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 17:33:08,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-01-27 17:33:08,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:33:08,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-01-27 17:33:08,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1751, Unknown=0, NotChecked=0, Total=1892 [2023-01-27 17:33:08,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 290 [2023-01-27 17:33:08,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 127 transitions, 1259 flow. Second operand has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:08,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:33:08,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 290 [2023-01-27 17:33:08,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:33:11,688 INFO L130 PetriNetUnfolder]: 2832/5250 cut-off events. [2023-01-27 17:33:11,688 INFO L131 PetriNetUnfolder]: For 14501/14501 co-relation queries the response was YES. [2023-01-27 17:33:11,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19586 conditions, 5250 events. 2832/5250 cut-off events. For 14501/14501 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 29424 event pairs, 686 based on Foata normal form. 0/5221 useless extension candidates. Maximal degree in co-relation 14314. Up to 1634 conditions per place. [2023-01-27 17:33:11,724 INFO L137 encePairwiseOnDemand]: 274/290 looper letters, 194 selfloop transitions, 140 changer transitions 4/338 dead transitions. [2023-01-27 17:33:11,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 338 transitions, 3324 flow [2023-01-27 17:33:11,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-01-27 17:33:11,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-01-27 17:33:11,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 2708 transitions. [2023-01-27 17:33:11,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3334975369458128 [2023-01-27 17:33:11,731 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 2708 transitions. [2023-01-27 17:33:11,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 2708 transitions. [2023-01-27 17:33:11,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:33:11,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 2708 transitions. [2023-01-27 17:33:11,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 96.71428571428571) internal successors, (2708), 28 states have internal predecessors, (2708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:11,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 290.0) internal successors, (8410), 29 states have internal predecessors, (8410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:11,755 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 290.0) internal successors, (8410), 29 states have internal predecessors, (8410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:11,755 INFO L175 Difference]: Start difference. First operand has 141 places, 127 transitions, 1259 flow. Second operand 28 states and 2708 transitions. [2023-01-27 17:33:11,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 338 transitions, 3324 flow [2023-01-27 17:33:11,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 338 transitions, 3094 flow, removed 73 selfloop flow, removed 8 redundant places. [2023-01-27 17:33:11,836 INFO L231 Difference]: Finished difference. Result has 167 places, 204 transitions, 2262 flow [2023-01-27 17:33:11,837 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=1172, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=2262, PETRI_PLACES=167, PETRI_TRANSITIONS=204} [2023-01-27 17:33:11,838 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 133 predicate places. [2023-01-27 17:33:11,838 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 204 transitions, 2262 flow [2023-01-27 17:33:11,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 92.0) internal successors, (1288), 14 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:11,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:33:11,839 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:33:11,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-27 17:33:12,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 17:33:12,056 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:33:12,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:33:12,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1979329675, now seen corresponding path program 5 times [2023-01-27 17:33:12,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:33:12,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444544490] [2023-01-27 17:33:12,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:33:12,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:33:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:33:13,322 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:33:13,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:33:13,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444544490] [2023-01-27 17:33:13,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444544490] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 17:33:13,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047258867] [2023-01-27 17:33:13,323 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-27 17:33:13,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 17:33:13,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 17:33:13,395 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 17:33:13,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-27 17:33:13,557 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-27 17:33:13,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 17:33:13,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 71 conjunts are in the unsatisfiable core [2023-01-27 17:33:13,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 17:33:13,601 INFO L321 Elim1Store]: treesize reduction 13, result has 48.0 percent of original size [2023-01-27 17:33:13,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 34 [2023-01-27 17:33:14,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-01-27 17:33:14,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 38 [2023-01-27 17:33:14,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 45 [2023-01-27 17:33:14,856 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:33:14,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 17:33:15,256 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_315 (Array Int Int))) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_315) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))) is different from false [2023-01-27 17:33:15,270 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 17:33:15,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2023-01-27 17:33:15,282 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 17:33:15,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2023-01-27 17:33:15,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2023-01-27 17:33:15,567 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2023-01-27 17:33:15,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047258867] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 17:33:15,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 17:33:15,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 14] total 46 [2023-01-27 17:33:15,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979161146] [2023-01-27 17:33:15,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 17:33:15,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-01-27 17:33:15,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:33:15,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-01-27 17:33:15,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1972, Unknown=15, NotChecked=90, Total=2256 [2023-01-27 17:33:15,573 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 290 [2023-01-27 17:33:15,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 204 transitions, 2262 flow. Second operand has 48 states, 48 states have (on average 87.75) internal successors, (4212), 48 states have internal predecessors, (4212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:15,575 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:33:15,575 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 290 [2023-01-27 17:33:15,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:33:21,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:33:28,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:33:38,538 INFO L130 PetriNetUnfolder]: 7427/14179 cut-off events. [2023-01-27 17:33:38,539 INFO L131 PetriNetUnfolder]: For 48875/48875 co-relation queries the response was YES. [2023-01-27 17:33:38,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56310 conditions, 14179 events. 7427/14179 cut-off events. For 48875/48875 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 100854 event pairs, 1389 based on Foata normal form. 52/14156 useless extension candidates. Maximal degree in co-relation 39675. Up to 3190 conditions per place. [2023-01-27 17:33:38,848 INFO L137 encePairwiseOnDemand]: 268/290 looper letters, 517 selfloop transitions, 509 changer transitions 18/1044 dead transitions. [2023-01-27 17:33:38,848 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 1044 transitions, 11276 flow [2023-01-27 17:33:38,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-01-27 17:33:38,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2023-01-27 17:33:38,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 7033 transitions. [2023-01-27 17:33:38,865 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3191016333938294 [2023-01-27 17:33:38,865 INFO L72 ComplementDD]: Start complementDD. Operand 76 states and 7033 transitions. [2023-01-27 17:33:38,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 7033 transitions. [2023-01-27 17:33:38,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:33:38,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 76 states and 7033 transitions. [2023-01-27 17:33:38,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 77 states, 76 states have (on average 92.53947368421052) internal successors, (7033), 76 states have internal predecessors, (7033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:38,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 77 states, 77 states have (on average 290.0) internal successors, (22330), 77 states have internal predecessors, (22330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:38,953 INFO L81 ComplementDD]: Finished complementDD. Result has 77 states, 77 states have (on average 290.0) internal successors, (22330), 77 states have internal predecessors, (22330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:38,953 INFO L175 Difference]: Start difference. First operand has 167 places, 204 transitions, 2262 flow. Second operand 76 states and 7033 transitions. [2023-01-27 17:33:38,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 1044 transitions, 11276 flow [2023-01-27 17:33:39,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 1044 transitions, 10590 flow, removed 263 selfloop flow, removed 6 redundant places. [2023-01-27 17:33:39,452 INFO L231 Difference]: Finished difference. Result has 266 places, 672 transitions, 8846 flow [2023-01-27 17:33:39,452 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=2107, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=76, PETRI_FLOW=8846, PETRI_PLACES=266, PETRI_TRANSITIONS=672} [2023-01-27 17:33:39,453 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 232 predicate places. [2023-01-27 17:33:39,453 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 672 transitions, 8846 flow [2023-01-27 17:33:39,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 87.75) internal successors, (4212), 48 states have internal predecessors, (4212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:39,468 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:33:39,468 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:33:39,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-27 17:33:39,673 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 [2023-01-27 17:33:39,673 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:33:39,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:33:39,673 INFO L85 PathProgramCache]: Analyzing trace with hash -388940039, now seen corresponding path program 6 times [2023-01-27 17:33:39,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:33:39,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499398370] [2023-01-27 17:33:39,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:33:39,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:33:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:33:40,703 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:33:40,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:33:40,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499398370] [2023-01-27 17:33:40,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499398370] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 17:33:40,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940398189] [2023-01-27 17:33:40,703 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-01-27 17:33:40,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 17:33:40,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 17:33:40,732 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 17:33:40,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-27 17:33:40,896 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2023-01-27 17:33:40,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 17:33:40,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 58 conjunts are in the unsatisfiable core [2023-01-27 17:33:40,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 17:33:40,923 INFO L321 Elim1Store]: treesize reduction 13, result has 48.0 percent of original size [2023-01-27 17:33:40,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 34 [2023-01-27 17:33:41,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2023-01-27 17:33:41,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 54 [2023-01-27 17:33:41,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 45 [2023-01-27 17:33:44,166 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-27 17:33:44,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 17:33:44,645 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_369 (Array Int Int))) (not (= 4294967294 (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_369) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296)))) is different from false [2023-01-27 17:33:44,677 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 17:33:44,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2023-01-27 17:33:44,686 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 17:33:44,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2023-01-27 17:33:44,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2023-01-27 17:33:45,088 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-27 17:33:45,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940398189] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 17:33:45,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 17:33:45,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 44 [2023-01-27 17:33:45,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559277063] [2023-01-27 17:33:45,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 17:33:45,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-01-27 17:33:45,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:33:45,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-01-27 17:33:45,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1836, Unknown=2, NotChecked=86, Total=2070 [2023-01-27 17:33:45,092 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 290 [2023-01-27 17:33:45,094 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 672 transitions, 8846 flow. Second operand has 46 states, 46 states have (on average 87.82608695652173) internal successors, (4040), 46 states have internal predecessors, (4040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:33:45,094 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:33:45,094 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 290 [2023-01-27 17:33:45,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:33:47,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:33:50,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:33:52,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:33:55,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:33:57,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:33:59,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:01,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:03,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:04,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:06,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:09,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:11,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:13,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:15,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:17,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:19,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:22,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:24,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:26,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:28,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:32,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:34,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:36,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:39,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:41,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:44,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:47,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:49,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:52,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:54,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:55,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:34:58,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:00,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:02,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:03,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:05,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:07,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:10,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:12,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:14,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:16,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:18,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:20,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:22,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:24,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:26,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:28,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:30,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:32,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:35,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:37,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:39,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:41,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:43,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:45,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:47,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:49,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:51,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:54,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:56,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:35:58,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:01,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:03,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:05,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:07,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:09,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:11,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:13,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:15,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:17,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:19,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:21,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:24,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:26,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:28,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:30,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:32,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:34,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:36,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:38,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:41,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:43,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:45,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:46,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:48,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:50,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:52,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:54,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:56,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:36:58,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:00,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:03,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:05,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:07,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:09,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:13,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:15,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:17,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:19,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:22,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:24,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:30,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:32,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:34,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:37,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:39,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:41,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:42,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:44,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:47,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:49,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:51,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:53,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:55,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:57,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:37:59,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:01,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:03,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:06,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:09,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:12,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:14,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:16,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:18,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:21,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:23,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:25,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:27,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:29,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:31,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:33,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:36,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:38,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:40,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:42,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:44,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:46,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:49,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:52,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:54,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:57,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:38:59,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:01,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:04,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:06,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:08,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:10,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:12,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:14,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:16,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:18,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:20,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:22,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:23,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:25,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:27,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:31,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:33,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:35,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:37,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:40,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:42,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:44,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:46,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:48,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:50,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:52,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:55,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:39:57,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:40:00,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:40:02,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:40:04,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:40:07,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:40:09,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:40:11,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:40:14,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:40:16,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:40:18,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:40:20,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:40:23,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:40:25,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:40:28,119 INFO L130 PetriNetUnfolder]: 9440/18252 cut-off events. [2023-01-27 17:40:28,119 INFO L131 PetriNetUnfolder]: For 318565/318565 co-relation queries the response was YES. [2023-01-27 17:40:28,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133564 conditions, 18252 events. 9440/18252 cut-off events. For 318565/318565 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 136078 event pairs, 1480 based on Foata normal form. 85/18236 useless extension candidates. Maximal degree in co-relation 122230. Up to 6400 conditions per place. [2023-01-27 17:40:28,746 INFO L137 encePairwiseOnDemand]: 273/290 looper letters, 390 selfloop transitions, 861 changer transitions 15/1266 dead transitions. [2023-01-27 17:40:28,746 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 1266 transitions, 18653 flow [2023-01-27 17:40:28,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-01-27 17:40:28,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2023-01-27 17:40:28,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 5544 transitions. [2023-01-27 17:40:28,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31862068965517243 [2023-01-27 17:40:28,769 INFO L72 ComplementDD]: Start complementDD. Operand 60 states and 5544 transitions. [2023-01-27 17:40:28,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 5544 transitions. [2023-01-27 17:40:28,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:40:28,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 60 states and 5544 transitions. [2023-01-27 17:40:28,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 61 states, 60 states have (on average 92.4) internal successors, (5544), 60 states have internal predecessors, (5544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:40:28,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 61 states, 61 states have (on average 290.0) internal successors, (17690), 61 states have internal predecessors, (17690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:40:28,863 INFO L81 ComplementDD]: Finished complementDD. Result has 61 states, 61 states have (on average 290.0) internal successors, (17690), 61 states have internal predecessors, (17690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:40:28,863 INFO L175 Difference]: Start difference. First operand has 266 places, 672 transitions, 8846 flow. Second operand 60 states and 5544 transitions. [2023-01-27 17:40:28,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 1266 transitions, 18653 flow [2023-01-27 17:40:29,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 1266 transitions, 18118 flow, removed 223 selfloop flow, removed 12 redundant places. [2023-01-27 17:40:29,810 INFO L231 Difference]: Finished difference. Result has 322 places, 955 transitions, 14169 flow [2023-01-27 17:40:29,811 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=8365, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=588, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=60, PETRI_FLOW=14169, PETRI_PLACES=322, PETRI_TRANSITIONS=955} [2023-01-27 17:40:29,811 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 288 predicate places. [2023-01-27 17:40:29,811 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 955 transitions, 14169 flow [2023-01-27 17:40:29,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 87.82608695652173) internal successors, (4040), 46 states have internal predecessors, (4040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:40:29,837 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:40:29,838 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:40:29,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-27 17:40:30,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-01-27 17:40:30,042 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:40:30,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:40:30,043 INFO L85 PathProgramCache]: Analyzing trace with hash -277182823, now seen corresponding path program 1 times [2023-01-27 17:40:30,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:40:30,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836917151] [2023-01-27 17:40:30,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:40:30,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:40:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:40:30,382 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-27 17:40:30,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:40:30,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836917151] [2023-01-27 17:40:30,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836917151] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 17:40:30,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308441324] [2023-01-27 17:40:30,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:40:30,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 17:40:30,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 17:40:30,397 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 17:40:30,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-27 17:40:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:40:30,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 8 conjunts are in the unsatisfiable core [2023-01-27 17:40:30,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 17:40:30,640 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-01-27 17:40:30,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 17:40:30,726 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-01-27 17:40:30,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308441324] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 17:40:30,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 17:40:30,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2023-01-27 17:40:30,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136558119] [2023-01-27 17:40:30,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 17:40:30,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-01-27 17:40:30,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:40:30,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-01-27 17:40:30,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-01-27 17:40:30,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 290 [2023-01-27 17:40:30,755 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 955 transitions, 14169 flow. Second operand has 13 states, 13 states have (on average 126.6923076923077) internal successors, (1647), 13 states have internal predecessors, (1647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:40:30,755 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:40:30,755 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 290 [2023-01-27 17:40:30,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:40:38,266 INFO L130 PetriNetUnfolder]: 10581/20543 cut-off events. [2023-01-27 17:40:38,266 INFO L131 PetriNetUnfolder]: For 383568/383568 co-relation queries the response was YES. [2023-01-27 17:40:38,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155837 conditions, 20543 events. 10581/20543 cut-off events. For 383568/383568 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 158598 event pairs, 2770 based on Foata normal form. 85/20527 useless extension candidates. Maximal degree in co-relation 143698. Up to 9070 conditions per place. [2023-01-27 17:40:38,723 INFO L137 encePairwiseOnDemand]: 280/290 looper letters, 861 selfloop transitions, 417 changer transitions 12/1290 dead transitions. [2023-01-27 17:40:38,723 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 1290 transitions, 21414 flow [2023-01-27 17:40:38,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-01-27 17:40:38,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-01-27 17:40:38,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2117 transitions. [2023-01-27 17:40:38,731 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45625 [2023-01-27 17:40:38,732 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2117 transitions. [2023-01-27 17:40:38,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2117 transitions. [2023-01-27 17:40:38,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:40:38,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2117 transitions. [2023-01-27 17:40:38,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 132.3125) internal successors, (2117), 16 states have internal predecessors, (2117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:40:38,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 290.0) internal successors, (4930), 17 states have internal predecessors, (4930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:40:38,751 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 290.0) internal successors, (4930), 17 states have internal predecessors, (4930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:40:38,751 INFO L175 Difference]: Start difference. First operand has 322 places, 955 transitions, 14169 flow. Second operand 16 states and 2117 transitions. [2023-01-27 17:40:38,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 1290 transitions, 21414 flow [2023-01-27 17:40:39,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 1290 transitions, 19964 flow, removed 404 selfloop flow, removed 14 redundant places. [2023-01-27 17:40:39,955 INFO L231 Difference]: Finished difference. Result has 331 places, 1055 transitions, 16021 flow [2023-01-27 17:40:39,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=12913, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=346, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=16021, PETRI_PLACES=331, PETRI_TRANSITIONS=1055} [2023-01-27 17:40:39,957 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 297 predicate places. [2023-01-27 17:40:39,957 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 1055 transitions, 16021 flow [2023-01-27 17:40:39,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.6923076923077) internal successors, (1647), 13 states have internal predecessors, (1647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:40:39,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:40:39,957 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:40:39,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-27 17:40:40,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 17:40:40,184 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:40:40,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:40:40,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2131210369, now seen corresponding path program 1 times [2023-01-27 17:40:40,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:40:40,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679786879] [2023-01-27 17:40:40,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:40:40,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:40:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:40:41,523 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:40:41,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:40:41,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679786879] [2023-01-27 17:40:41,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679786879] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 17:40:41,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161395009] [2023-01-27 17:40:41,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:40:41,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 17:40:41,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 17:40:41,524 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 17:40:41,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-01-27 17:40:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:40:41,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 80 conjunts are in the unsatisfiable core [2023-01-27 17:40:41,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 17:40:42,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-01-27 17:40:42,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 34 [2023-01-27 17:40:43,775 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-27 17:40:43,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 45 [2023-01-27 17:40:44,554 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:40:44,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 17:40:45,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 48 [2023-01-27 17:40:46,200 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:40:46,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161395009] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 17:40:46,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 17:40:46,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21, 20] total 60 [2023-01-27 17:40:46,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624822990] [2023-01-27 17:40:46,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 17:40:46,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2023-01-27 17:40:46,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:40:46,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2023-01-27 17:40:46,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=376, Invalid=3406, Unknown=0, NotChecked=0, Total=3782 [2023-01-27 17:40:46,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 290 [2023-01-27 17:40:46,208 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 1055 transitions, 16021 flow. Second operand has 62 states, 62 states have (on average 91.74193548387096) internal successors, (5688), 62 states have internal predecessors, (5688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:40:46,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:40:46,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 290 [2023-01-27 17:40:46,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:41:10,478 INFO L130 PetriNetUnfolder]: 13523/26673 cut-off events. [2023-01-27 17:41:10,478 INFO L131 PetriNetUnfolder]: For 527771/527771 co-relation queries the response was YES. [2023-01-27 17:41:10,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202409 conditions, 26673 events. 13523/26673 cut-off events. For 527771/527771 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 210377 event pairs, 3276 based on Foata normal form. 318/26890 useless extension candidates. Maximal degree in co-relation 167117. Up to 12696 conditions per place. [2023-01-27 17:41:11,122 INFO L137 encePairwiseOnDemand]: 272/290 looper letters, 1011 selfloop transitions, 699 changer transitions 93/1803 dead transitions. [2023-01-27 17:41:11,123 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 1803 transitions, 30262 flow [2023-01-27 17:41:11,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-01-27 17:41:11,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2023-01-27 17:41:11,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 6637 transitions. [2023-01-27 17:41:11,156 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3316841579210395 [2023-01-27 17:41:11,156 INFO L72 ComplementDD]: Start complementDD. Operand 69 states and 6637 transitions. [2023-01-27 17:41:11,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 6637 transitions. [2023-01-27 17:41:11,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:41:11,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 69 states and 6637 transitions. [2023-01-27 17:41:11,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 70 states, 69 states have (on average 96.18840579710145) internal successors, (6637), 69 states have internal predecessors, (6637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:41:11,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 70 states, 70 states have (on average 290.0) internal successors, (20300), 70 states have internal predecessors, (20300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:41:11,387 INFO L81 ComplementDD]: Finished complementDD. Result has 70 states, 70 states have (on average 290.0) internal successors, (20300), 70 states have internal predecessors, (20300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:41:11,387 INFO L175 Difference]: Start difference. First operand has 331 places, 1055 transitions, 16021 flow. Second operand 69 states and 6637 transitions. [2023-01-27 17:41:11,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 1803 transitions, 30262 flow [2023-01-27 17:41:12,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 1803 transitions, 29725 flow, removed 259 selfloop flow, removed 3 redundant places. [2023-01-27 17:41:12,872 INFO L231 Difference]: Finished difference. Result has 430 places, 1408 transitions, 24022 flow [2023-01-27 17:41:12,873 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=15794, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1055, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=396, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=548, PETRI_DIFFERENCE_SUBTRAHEND_STATES=69, PETRI_FLOW=24022, PETRI_PLACES=430, PETRI_TRANSITIONS=1408} [2023-01-27 17:41:12,874 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 396 predicate places. [2023-01-27 17:41:12,874 INFO L495 AbstractCegarLoop]: Abstraction has has 430 places, 1408 transitions, 24022 flow [2023-01-27 17:41:12,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 91.74193548387096) internal successors, (5688), 62 states have internal predecessors, (5688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:41:12,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:41:12,875 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:41:12,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-01-27 17:41:13,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 17:41:13,081 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:41:13,097 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:41:13,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1071599769, now seen corresponding path program 2 times [2023-01-27 17:41:13,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:41:13,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544377483] [2023-01-27 17:41:13,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:41:13,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:41:13,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:41:14,855 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:41:14,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:41:14,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544377483] [2023-01-27 17:41:14,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544377483] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 17:41:14,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694612202] [2023-01-27 17:41:14,856 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 17:41:14,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 17:41:14,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 17:41:14,857 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 17:41:14,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-01-27 17:41:14,992 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-27 17:41:14,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 17:41:14,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 88 conjunts are in the unsatisfiable core [2023-01-27 17:41:14,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 17:41:15,012 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-27 17:41:15,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-01-27 17:41:15,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-01-27 17:41:15,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2023-01-27 17:41:15,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 17:41:15,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2023-01-27 17:41:16,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 32 [2023-01-27 17:41:16,508 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:41:16,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 17:41:18,329 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_552 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_552) |c_~#arr~0.base|) (+ |c_~#arr~0.offset| (* c_~top~0 4))) 4294967296) 4294967294))) is different from false [2023-01-27 17:41:18,339 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 17:41:18,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2023-01-27 17:41:18,347 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 17:41:18,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2023-01-27 17:41:18,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2023-01-27 17:41:18,565 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:41:18,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694612202] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 17:41:18,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 17:41:18,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21, 20] total 59 [2023-01-27 17:41:18,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390131844] [2023-01-27 17:41:18,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 17:41:18,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-01-27 17:41:18,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:41:18,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-01-27 17:41:18,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=3326, Unknown=1, NotChecked=116, Total=3660 [2023-01-27 17:41:18,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 290 [2023-01-27 17:41:18,571 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 1408 transitions, 24022 flow. Second operand has 61 states, 61 states have (on average 87.70491803278688) internal successors, (5350), 61 states have internal predecessors, (5350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:41:18,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:41:18,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 290 [2023-01-27 17:41:18,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:42:04,719 INFO L130 PetriNetUnfolder]: 22063/44267 cut-off events. [2023-01-27 17:42:04,719 INFO L131 PetriNetUnfolder]: For 1084676/1084676 co-relation queries the response was YES. [2023-01-27 17:42:05,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364195 conditions, 44267 events. 22063/44267 cut-off events. For 1084676/1084676 co-relation queries the response was YES. Maximal size of possible extension queue 899. Compared 376448 event pairs, 2918 based on Foata normal form. 456/44546 useless extension candidates. Maximal degree in co-relation 354788. Up to 14065 conditions per place. [2023-01-27 17:42:06,006 INFO L137 encePairwiseOnDemand]: 273/290 looper letters, 634 selfloop transitions, 2421 changer transitions 75/3130 dead transitions. [2023-01-27 17:42:06,006 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 3130 transitions, 58506 flow [2023-01-27 17:42:06,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2023-01-27 17:42:06,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2023-01-27 17:42:06,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 9016 transitions. [2023-01-27 17:42:06,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.31724137931034485 [2023-01-27 17:42:06,046 INFO L72 ComplementDD]: Start complementDD. Operand 98 states and 9016 transitions. [2023-01-27 17:42:06,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 9016 transitions. [2023-01-27 17:42:06,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:42:06,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 98 states and 9016 transitions. [2023-01-27 17:42:06,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 99 states, 98 states have (on average 92.0) internal successors, (9016), 98 states have internal predecessors, (9016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:42:06,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 99 states, 99 states have (on average 290.0) internal successors, (28710), 99 states have internal predecessors, (28710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:42:06,098 INFO L81 ComplementDD]: Finished complementDD. Result has 99 states, 99 states have (on average 290.0) internal successors, (28710), 99 states have internal predecessors, (28710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:42:06,106 INFO L175 Difference]: Start difference. First operand has 430 places, 1408 transitions, 24022 flow. Second operand 98 states and 9016 transitions. [2023-01-27 17:42:06,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 3130 transitions, 58506 flow [2023-01-27 17:42:09,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 3130 transitions, 56141 flow, removed 1158 selfloop flow, removed 11 redundant places. [2023-01-27 17:42:09,997 INFO L231 Difference]: Finished difference. Result has 527 places, 2568 transitions, 48992 flow [2023-01-27 17:42:09,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=23009, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1292, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=98, PETRI_FLOW=48992, PETRI_PLACES=527, PETRI_TRANSITIONS=2568} [2023-01-27 17:42:09,999 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 493 predicate places. [2023-01-27 17:42:09,999 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 2568 transitions, 48992 flow [2023-01-27 17:42:10,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 87.70491803278688) internal successors, (5350), 61 states have internal predecessors, (5350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:42:10,000 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:42:10,000 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:42:10,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-01-27 17:42:10,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-01-27 17:42:10,205 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:42:10,205 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:42:10,205 INFO L85 PathProgramCache]: Analyzing trace with hash -288350104, now seen corresponding path program 2 times [2023-01-27 17:42:10,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:42:10,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215917982] [2023-01-27 17:42:10,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:42:10,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:42:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:42:10,616 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 17:42:10,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:42:10,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215917982] [2023-01-27 17:42:10,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215917982] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 17:42:10,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116128177] [2023-01-27 17:42:10,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 17:42:10,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 17:42:10,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 17:42:10,634 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 17:42:10,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-01-27 17:42:10,808 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-27 17:42:10,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 17:42:10,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 10 conjunts are in the unsatisfiable core [2023-01-27 17:42:10,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 17:42:10,868 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 17:42:10,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 17:42:10,963 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 17:42:10,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116128177] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 17:42:10,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 17:42:10,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 18 [2023-01-27 17:42:10,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117014109] [2023-01-27 17:42:10,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 17:42:10,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-01-27 17:42:10,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:42:10,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-01-27 17:42:10,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2023-01-27 17:42:10,966 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 290 [2023-01-27 17:42:10,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 2568 transitions, 48992 flow. Second operand has 19 states, 19 states have (on average 126.3157894736842) internal successors, (2400), 19 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:42:10,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:42:10,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 290 [2023-01-27 17:42:10,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:42:49,087 INFO L130 PetriNetUnfolder]: 24457/49230 cut-off events. [2023-01-27 17:42:49,088 INFO L131 PetriNetUnfolder]: For 1310446/1310446 co-relation queries the response was YES. [2023-01-27 17:42:50,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420059 conditions, 49230 events. 24457/49230 cut-off events. For 1310446/1310446 co-relation queries the response was YES. Maximal size of possible extension queue 858. Compared 425774 event pairs, 6103 based on Foata normal form. 179/49287 useless extension candidates. Maximal degree in co-relation 407602. Up to 15300 conditions per place. [2023-01-27 17:42:50,707 INFO L137 encePairwiseOnDemand]: 280/290 looper letters, 1241 selfloop transitions, 2110 changer transitions 12/3363 dead transitions. [2023-01-27 17:42:50,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 550 places, 3363 transitions, 70732 flow [2023-01-27 17:42:50,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-01-27 17:42:50,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-01-27 17:42:50,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3140 transitions. [2023-01-27 17:42:50,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4511494252873563 [2023-01-27 17:42:50,727 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3140 transitions. [2023-01-27 17:42:50,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3140 transitions. [2023-01-27 17:42:50,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:42:50,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3140 transitions. [2023-01-27 17:42:50,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 130.83333333333334) internal successors, (3140), 24 states have internal predecessors, (3140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:42:50,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 290.0) internal successors, (7250), 25 states have internal predecessors, (7250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:42:50,748 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 290.0) internal successors, (7250), 25 states have internal predecessors, (7250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:42:50,748 INFO L175 Difference]: Start difference. First operand has 527 places, 2568 transitions, 48992 flow. Second operand 24 states and 3140 transitions. [2023-01-27 17:42:50,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 550 places, 3363 transitions, 70732 flow [2023-01-27 17:42:56,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 3363 transitions, 66267 flow, removed 2139 selfloop flow, removed 21 redundant places. [2023-01-27 17:42:57,066 INFO L231 Difference]: Finished difference. Result has 534 places, 2840 transitions, 57522 flow [2023-01-27 17:42:57,068 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=45643, PETRI_DIFFERENCE_MINUEND_PLACES=506, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1800, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=697, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=57522, PETRI_PLACES=534, PETRI_TRANSITIONS=2840} [2023-01-27 17:42:57,068 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 500 predicate places. [2023-01-27 17:42:57,068 INFO L495 AbstractCegarLoop]: Abstraction has has 534 places, 2840 transitions, 57522 flow [2023-01-27 17:42:57,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 126.3157894736842) internal successors, (2400), 19 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:42:57,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:42:57,069 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2023-01-27 17:42:57,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-01-27 17:42:57,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-01-27 17:42:57,277 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:42:57,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:42:57,278 INFO L85 PathProgramCache]: Analyzing trace with hash 674057269, now seen corresponding path program 3 times [2023-01-27 17:42:57,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:42:57,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660589937] [2023-01-27 17:42:57,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:42:57,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:42:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:42:57,423 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 56 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:42:57,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:42:57,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660589937] [2023-01-27 17:42:57,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660589937] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 17:42:57,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722727004] [2023-01-27 17:42:57,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-27 17:42:57,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 17:42:57,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 17:42:57,434 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 17:42:57,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-01-27 17:42:57,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-01-27 17:42:57,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 17:42:57,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-27 17:42:57,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 17:42:57,727 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:42:57,728 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-27 17:42:57,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722727004] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 17:42:57,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-27 17:42:57,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2023-01-27 17:42:57,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377092714] [2023-01-27 17:42:57,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 17:42:57,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-27 17:42:57,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:42:57,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-27 17:42:57,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-01-27 17:42:57,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 290 [2023-01-27 17:42:57,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 2840 transitions, 57522 flow. Second operand has 8 states, 8 states have (on average 142.5) internal successors, (1140), 8 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:42:57,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:42:57,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 290 [2023-01-27 17:42:57,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:43:36,731 INFO L130 PetriNetUnfolder]: 23252/47070 cut-off events. [2023-01-27 17:43:36,732 INFO L131 PetriNetUnfolder]: For 1089037/1089080 co-relation queries the response was YES. [2023-01-27 17:43:38,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378341 conditions, 47070 events. 23252/47070 cut-off events. For 1089037/1089080 co-relation queries the response was YES. Maximal size of possible extension queue 826. Compared 414691 event pairs, 5695 based on Foata normal form. 1145/48171 useless extension candidates. Maximal degree in co-relation 365580. Up to 23236 conditions per place. [2023-01-27 17:43:38,338 INFO L137 encePairwiseOnDemand]: 286/290 looper letters, 1296 selfloop transitions, 9 changer transitions 1772/3379 dead transitions. [2023-01-27 17:43:38,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 3379 transitions, 73138 flow [2023-01-27 17:43:38,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-27 17:43:38,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-27 17:43:38,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1237 transitions. [2023-01-27 17:43:38,340 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5331896551724138 [2023-01-27 17:43:38,340 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1237 transitions. [2023-01-27 17:43:38,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1237 transitions. [2023-01-27 17:43:38,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:43:38,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1237 transitions. [2023-01-27 17:43:38,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 154.625) internal successors, (1237), 8 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:43:38,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 290.0) internal successors, (2610), 9 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:43:38,342 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 290.0) internal successors, (2610), 9 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:43:38,342 INFO L175 Difference]: Start difference. First operand has 534 places, 2840 transitions, 57522 flow. Second operand 8 states and 1237 transitions. [2023-01-27 17:43:38,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 3379 transitions, 73138 flow [2023-01-27 17:43:45,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 3379 transitions, 69470 flow, removed 1000 selfloop flow, removed 12 redundant places. [2023-01-27 17:43:45,207 INFO L231 Difference]: Finished difference. Result has 530 places, 1289 transitions, 22869 flow [2023-01-27 17:43:45,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=40023, PETRI_DIFFERENCE_MINUEND_PLACES=522, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22869, PETRI_PLACES=530, PETRI_TRANSITIONS=1289} [2023-01-27 17:43:45,210 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 496 predicate places. [2023-01-27 17:43:45,210 INFO L495 AbstractCegarLoop]: Abstraction has has 530 places, 1289 transitions, 22869 flow [2023-01-27 17:43:45,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 142.5) internal successors, (1140), 8 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:43:45,210 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:43:45,210 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:43:45,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-01-27 17:43:45,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-01-27 17:43:45,430 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:43:45,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:43:45,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1429281689, now seen corresponding path program 3 times [2023-01-27 17:43:45,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:43:45,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118576508] [2023-01-27 17:43:45,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:43:45,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:43:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:43:45,848 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-27 17:43:45,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:43:45,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118576508] [2023-01-27 17:43:45,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118576508] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 17:43:45,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277136630] [2023-01-27 17:43:45,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-27 17:43:45,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 17:43:45,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 17:43:45,852 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 17:43:45,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-01-27 17:43:46,034 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-01-27 17:43:46,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 17:43:46,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 12 conjunts are in the unsatisfiable core [2023-01-27 17:43:46,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 17:43:46,106 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 43 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-01-27 17:43:46,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 17:43:46,218 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 4 proven. 43 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-01-27 17:43:46,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277136630] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 17:43:46,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 17:43:46,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 17 [2023-01-27 17:43:46,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239412257] [2023-01-27 17:43:46,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 17:43:46,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-01-27 17:43:46,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:43:46,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-01-27 17:43:46,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2023-01-27 17:43:46,220 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 290 [2023-01-27 17:43:46,221 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 1289 transitions, 22869 flow. Second operand has 18 states, 18 states have (on average 126.33333333333333) internal successors, (2274), 18 states have internal predecessors, (2274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:43:46,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:43:46,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 290 [2023-01-27 17:43:46,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:43:58,505 INFO L130 PetriNetUnfolder]: 12490/25722 cut-off events. [2023-01-27 17:43:58,505 INFO L131 PetriNetUnfolder]: For 567485/567485 co-relation queries the response was YES. [2023-01-27 17:43:59,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214751 conditions, 25722 events. 12490/25722 cut-off events. For 567485/567485 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 211449 event pairs, 2521 based on Foata normal form. 28/25750 useless extension candidates. Maximal degree in co-relation 207185. Up to 8867 conditions per place. [2023-01-27 17:43:59,134 INFO L137 encePairwiseOnDemand]: 282/290 looper letters, 710 selfloop transitions, 708 changer transitions 86/1504 dead transitions. [2023-01-27 17:43:59,134 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 1504 transitions, 28550 flow [2023-01-27 17:43:59,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-27 17:43:59,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-01-27 17:43:59,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2507 transitions. [2023-01-27 17:43:59,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45499092558983667 [2023-01-27 17:43:59,136 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2507 transitions. [2023-01-27 17:43:59,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2507 transitions. [2023-01-27 17:43:59,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 17:43:59,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2507 transitions. [2023-01-27 17:43:59,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 131.94736842105263) internal successors, (2507), 19 states have internal predecessors, (2507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:43:59,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 290.0) internal successors, (5800), 20 states have internal predecessors, (5800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:43:59,157 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 290.0) internal successors, (5800), 20 states have internal predecessors, (5800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:43:59,158 INFO L175 Difference]: Start difference. First operand has 530 places, 1289 transitions, 22869 flow. Second operand 19 states and 2507 transitions. [2023-01-27 17:43:59,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 1504 transitions, 28550 flow [2023-01-27 17:44:01,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 1504 transitions, 25052 flow, removed 623 selfloop flow, removed 39 redundant places. [2023-01-27 17:44:01,361 INFO L231 Difference]: Finished difference. Result has 508 places, 1261 transitions, 20838 flow [2023-01-27 17:44:01,362 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=19520, PETRI_DIFFERENCE_MINUEND_PLACES=489, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=704, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=572, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=20838, PETRI_PLACES=508, PETRI_TRANSITIONS=1261} [2023-01-27 17:44:01,362 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 474 predicate places. [2023-01-27 17:44:01,362 INFO L495 AbstractCegarLoop]: Abstraction has has 508 places, 1261 transitions, 20838 flow [2023-01-27 17:44:01,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 126.33333333333333) internal successors, (2274), 18 states have internal predecessors, (2274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:44:01,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:44:01,363 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 17:44:01,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-01-27 17:44:01,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-01-27 17:44:01,569 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 17:44:01,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:44:01,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1088570660, now seen corresponding path program 3 times [2023-01-27 17:44:01,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:44:01,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99035825] [2023-01-27 17:44:01,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:44:01,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:44:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 17:44:03,665 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:44:03,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 17:44:03,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99035825] [2023-01-27 17:44:03,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99035825] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 17:44:03,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128197494] [2023-01-27 17:44:03,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-27 17:44:03,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 17:44:03,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 17:44:03,667 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 17:44:03,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-01-27 17:44:03,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-01-27 17:44:03,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 17:44:03,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 93 conjunts are in the unsatisfiable core [2023-01-27 17:44:03,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 17:44:04,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-01-27 17:44:04,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 17:44:04,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 38 [2023-01-27 17:44:05,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 17:44:05,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 38 [2023-01-27 17:44:06,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 45 [2023-01-27 17:44:10,581 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:44:10,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 17:44:14,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 46 [2023-01-27 17:44:14,380 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 17:44:14,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128197494] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 17:44:14,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 17:44:14,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 75 [2023-01-27 17:44:14,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707136000] [2023-01-27 17:44:14,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 17:44:14,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2023-01-27 17:44:14,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 17:44:14,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2023-01-27 17:44:14,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=5426, Unknown=1, NotChecked=0, Total=5700 [2023-01-27 17:44:14,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 290 [2023-01-27 17:44:14,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 1261 transitions, 20838 flow. Second operand has 76 states, 76 states have (on average 92.01315789473684) internal successors, (6993), 76 states have internal predecessors, (6993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 17:44:14,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 17:44:14,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 290 [2023-01-27 17:44:14,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 17:44:17,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:44:19,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:44:21,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:44:22,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:44:25,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:44:27,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:44:29,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:44:30,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:44:32,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:44:34,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:44:36,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:44:38,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:44:40,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:44:42,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:44:45,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:44:53,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:44:55,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:44:57,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:44:59,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:45:01,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:45:06,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:45:09,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:45:12,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:45:14,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:45:17,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:45:19,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:45:21,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:45:23,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:45:27,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:45:29,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:45:32,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:45:34,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:45:38,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:45:41,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:45:43,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:45:46,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:45:49,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:45:51,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:45:53,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:45:55,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:45:57,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:45:59,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:46:01,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:46:03,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:46:08,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:46:10,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:46:12,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:46:15,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:46:17,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:46:19,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:46:21,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:46:25,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:46:27,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:46:30,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:46:33,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:46:36,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:46:39,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:46:43,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:46:45,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:46:47,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:46:50,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:46:52,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:46:55,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:46:57,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:46:59,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:47:01,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:47:04,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:47:06,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:47:09,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:47:11,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:47:13,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:47:16,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:47:19,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:47:21,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:47:24,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:47:27,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:47:29,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:47:32,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:47:34,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:47:36,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-01-27 17:47:40,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] Received shutdown request... [2023-01-27 17:47:42,037 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-27 17:47:42,037 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-27 17:47:42,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-01-27 17:47:42,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2023-01-27 17:47:42,921 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2023-01-27 17:47:42,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-01-27 17:47:43,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 17:47:43,128 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (76states, 90/290 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 25877 conditions, 3040 events (1374/3039 cut-off events. For 57058/57058 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 21203 event pairs, 268 based on Foata normal form. 0/3191 useless extension candidates. Maximal degree in co-relation 25758. Up to 1223 conditions per place.). [2023-01-27 17:47:43,132 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2023-01-27 17:47:43,133 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2023-01-27 17:47:43,133 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2023-01-27 17:47:43,133 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2023-01-27 17:47:43,133 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-01-27 17:47:43,134 INFO L445 BasicCegarLoop]: Path program histogram: [6, 3, 3, 3, 1, 1, 1, 1] [2023-01-27 17:47:43,179 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 17:47:43,179 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 17:47:43,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 05:47:43 BasicIcfg [2023-01-27 17:47:43,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 17:47:43,184 INFO L158 Benchmark]: Toolchain (without parser) took 899329.07ms. Allocated memory was 308.3MB in the beginning and 14.8GB in the end (delta: 14.5GB). Free memory was 256.8MB in the beginning and 9.3GB in the end (delta: -9.1GB). Peak memory consumption was 5.4GB. Max. memory is 16.0GB. [2023-01-27 17:47:43,184 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 308.3MB. Free memory is still 256.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 17:47:43,184 INFO L158 Benchmark]: CACSL2BoogieTranslator took 824.64ms. Allocated memory is still 308.3MB. Free memory was 256.4MB in the beginning and 227.4MB in the end (delta: 29.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-01-27 17:47:43,185 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.79ms. Allocated memory is still 308.3MB. Free memory was 227.4MB in the beginning and 225.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 17:47:43,185 INFO L158 Benchmark]: Boogie Preprocessor took 50.28ms. Allocated memory is still 308.3MB. Free memory was 224.6MB in the beginning and 222.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 17:47:43,185 INFO L158 Benchmark]: RCFGBuilder took 792.14ms. Allocated memory was 308.3MB in the beginning and 408.9MB in the end (delta: 100.7MB). Free memory was 222.9MB in the beginning and 369.0MB in the end (delta: -146.1MB). Peak memory consumption was 23.5MB. Max. memory is 16.0GB. [2023-01-27 17:47:43,185 INFO L158 Benchmark]: TraceAbstraction took 897561.02ms. Allocated memory was 408.9MB in the beginning and 14.8GB in the end (delta: 14.4GB). Free memory was 369.0MB in the beginning and 9.3GB in the end (delta: -9.0GB). Peak memory consumption was 5.5GB. Max. memory is 16.0GB. [2023-01-27 17:47:43,185 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 308.3MB. Free memory is still 256.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 824.64ms. Allocated memory is still 308.3MB. Free memory was 256.4MB in the beginning and 227.4MB in the end (delta: 29.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 74.79ms. Allocated memory is still 308.3MB. Free memory was 227.4MB in the beginning and 225.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 50.28ms. Allocated memory is still 308.3MB. Free memory was 224.6MB in the beginning and 222.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 792.14ms. Allocated memory was 308.3MB in the beginning and 408.9MB in the end (delta: 100.7MB). Free memory was 222.9MB in the beginning and 369.0MB in the end (delta: -146.1MB). Peak memory consumption was 23.5MB. Max. memory is 16.0GB. * TraceAbstraction took 897561.02ms. Allocated memory was 408.9MB in the beginning and 14.8GB in the end (delta: 14.4GB). Free memory was 369.0MB in the beginning and 9.3GB in the end (delta: -9.0GB). Peak memory consumption was 5.5GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 141 PlacesBefore, 34 PlacesAfterwards, 144 TransitionsBefore, 32 TransitionsAfterwards, 6492 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 75 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 25 ConcurrentYvCompositions, 5 ChoiceCompositions, 135 TotalNumberOfCompositions, 8991 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6737, independent: 6555, independent conditional: 0, independent unconditional: 6555, dependent: 182, dependent conditional: 0, dependent unconditional: 182, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3666, independent: 3614, independent conditional: 0, independent unconditional: 3614, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6737, independent: 2941, independent conditional: 0, independent unconditional: 2941, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 3666, unknown conditional: 0, unknown unconditional: 3666] , Statistics on independence cache: Total cache size (in pairs): 171, Positive cache size: 156, Positive conditional cache size: 0, Positive unconditional cache size: 156, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 941]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (76states, 90/290 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 25877 conditions, 3040 events (1374/3039 cut-off events. For 57058/57058 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 21203 event pairs, 268 based on Foata normal form. 0/3191 useless extension candidates. Maximal degree in co-relation 25758. Up to 1223 conditions per place.). - TimeoutResultAtElement [Line: 1022]: 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 (76states, 90/290 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 25877 conditions, 3040 events (1374/3039 cut-off events. For 57058/57058 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 21203 event pairs, 268 based on Foata normal form. 0/3191 useless extension candidates. Maximal degree in co-relation 25758. Up to 1223 conditions per place.). - TimeoutResultAtElement [Line: 1023]: 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 (76states, 90/290 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 25877 conditions, 3040 events (1374/3039 cut-off events. For 57058/57058 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 21203 event pairs, 268 based on Foata normal form. 0/3191 useless extension candidates. Maximal degree in co-relation 25758. Up to 1223 conditions per place.). - TimeoutResultAtElement [Line: 941]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (76states, 90/290 universal loopers) in iteration 19,while PetriNetUnfolder was constructing finite prefix that currently has 25877 conditions, 3040 events (1374/3039 cut-off events. For 57058/57058 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 21203 event pairs, 268 based on Foata normal form. 0/3191 useless extension candidates. Maximal degree in co-relation 25758. Up to 1223 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 240 locations, 6 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: 897.4s, OverallIterations: 19, TraceHistogramMax: 6, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 843.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 417 mSolverCounterUnknown, 6307 SdHoareTripleChecker+Valid, 600.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6307 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 592.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1405 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 430 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41890 IncrementalHoareTripleChecker+Invalid, 44142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 430 mSolverCounterUnsat, 2 mSDtfsCounter, 41890 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1515 GetRequests, 558 SyntacticMatches, 42 SemanticMatches, 915 ConstructedPredicates, 3 IntricatePredicates, 1 DeprecatedPredicates, 29996 ImplicationChecksByTransitivity, 95.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57522occurred in iteration=16, InterpolantAutomatonStates: 491, 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: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 42.9s InterpolantComputationTime, 916 NumberOfCodeBlocks, 909 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 1235 ConstructedInterpolants, 35 QuantifiedInterpolants, 16926 SizeOfPredicates, 199 NumberOfNonLiveVariables, 3680 ConjunctsInSsa, 498 ConjunctsInUnsatCore, 42 InterpolantComputations, 9 PerfectInterpolantSequences, 241/848 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