./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread/queue_longest.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread/queue_longest.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5fb3c623242420f3b3352ce2377df781fcc1efd56f82dd0011f9620e127821b3 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 04:42:18,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 04:42:18,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 04:42:18,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 04:42:18,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 04:42:18,759 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 04:42:18,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 04:42:18,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 04:42:18,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 04:42:18,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 04:42:18,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 04:42:18,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 04:42:18,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 04:42:18,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 04:42:18,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 04:42:18,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 04:42:18,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 04:42:18,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 04:42:18,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 04:42:18,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 04:42:18,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 04:42:18,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 04:42:18,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 04:42:18,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 04:42:18,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 04:42:18,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 04:42:18,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 04:42:18,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 04:42:18,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 04:42:18,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 04:42:18,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 04:42:18,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 04:42:18,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 04:42:18,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 04:42:18,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 04:42:18,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 04:42:18,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 04:42:18,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 04:42:18,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 04:42:18,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 04:42:18,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 04:42:18,820 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 04:42:18,852 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 04:42:18,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 04:42:18,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 04:42:18,854 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 04:42:18,855 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 04:42:18,855 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 04:42:18,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 04:42:18,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 04:42:18,856 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 04:42:18,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 04:42:18,857 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 04:42:18,857 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 04:42:18,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 04:42:18,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 04:42:18,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 04:42:18,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 04:42:18,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 04:42:18,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 04:42:18,859 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 04:42:18,859 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 04:42:18,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 04:42:18,859 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 04:42:18,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 04:42:18,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 04:42:18,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 04:42:18,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 04:42:18,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 04:42:18,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 04:42:18,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 04:42:18,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 04:42:18,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 04:42:18,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 04:42:18,862 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 04:42:18,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 04:42:18,863 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 04:42:18,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 04:42:18,863 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 04:42:18,863 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fb3c623242420f3b3352ce2377df781fcc1efd56f82dd0011f9620e127821b3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 04:42:19,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 04:42:19,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 04:42:19,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 04:42:19,214 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 04:42:19,215 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 04:42:19,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue_longest.i [2023-09-01 04:42:20,464 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 04:42:20,819 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 04:42:20,821 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longest.i [2023-09-01 04:42:20,843 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12db0ed10/74ef4fb3c6ec4dd4836844a57b44a7f1/FLAG8202824a9 [2023-09-01 04:42:20,857 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12db0ed10/74ef4fb3c6ec4dd4836844a57b44a7f1 [2023-09-01 04:42:20,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 04:42:20,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 04:42:20,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 04:42:20,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 04:42:20,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 04:42:20,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 04:42:20" (1/1) ... [2023-09-01 04:42:20,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5932aa9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 04:42:20, skipping insertion in model container [2023-09-01 04:42:20,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 04:42:20" (1/1) ... [2023-09-01 04:42:20,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 04:42:20,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 04:42:21,394 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/queue_longest.i[43296,43309] [2023-09-01 04:42:21,401 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/queue_longest.i[43503,43516] [2023-09-01 04:42:21,406 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/queue_longest.i[43783,43796] [2023-09-01 04:42:21,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 04:42:21,425 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 04:42:21,501 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/queue_longest.i[43296,43309] [2023-09-01 04:42:21,502 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/queue_longest.i[43503,43516] [2023-09-01 04:42:21,504 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/queue_longest.i[43783,43796] [2023-09-01 04:42:21,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 04:42:21,577 INFO L208 MainTranslator]: Completed translation [2023-09-01 04:42:21,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 04:42:21 WrapperNode [2023-09-01 04:42:21,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 04:42:21,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 04:42:21,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 04:42:21,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 04:42:21,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 04:42:21" (1/1) ... [2023-09-01 04:42:21,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 04:42:21" (1/1) ... [2023-09-01 04:42:21,664 INFO L138 Inliner]: procedures = 274, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 261 [2023-09-01 04:42:21,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 04:42:21,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 04:42:21,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 04:42:21,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 04:42:21,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 04:42:21" (1/1) ... [2023-09-01 04:42:21,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 04:42:21" (1/1) ... [2023-09-01 04:42:21,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 04:42:21" (1/1) ... [2023-09-01 04:42:21,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 04:42:21" (1/1) ... [2023-09-01 04:42:21,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 04:42:21" (1/1) ... [2023-09-01 04:42:21,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 04:42:21" (1/1) ... [2023-09-01 04:42:21,719 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 04:42:21" (1/1) ... [2023-09-01 04:42:21,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 04:42:21" (1/1) ... [2023-09-01 04:42:21,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 04:42:21,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 04:42:21,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 04:42:21,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 04:42:21,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 04:42:21" (1/1) ... [2023-09-01 04:42:21,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 04:42:21,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 04:42:21,766 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) [2023-09-01 04:42:21,798 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 [2023-09-01 04:42:21,821 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-09-01 04:42:21,821 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-09-01 04:42:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-09-01 04:42:21,822 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-09-01 04:42:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 04:42:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 04:42:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 04:42:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 04:42:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 04:42:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 04:42:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 04:42:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 04:42:21,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 04:42:21,824 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 04:42:22,008 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 04:42:22,010 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 04:42:22,348 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 04:42:22,358 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 04:42:22,359 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-09-01 04:42:22,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 04:42:22 BoogieIcfgContainer [2023-09-01 04:42:22,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 04:42:22,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 04:42:22,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 04:42:22,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 04:42:22,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 04:42:20" (1/3) ... [2023-09-01 04:42:22,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6180182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 04:42:22, skipping insertion in model container [2023-09-01 04:42:22,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 04:42:21" (2/3) ... [2023-09-01 04:42:22,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6180182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 04:42:22, skipping insertion in model container [2023-09-01 04:42:22,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 04:42:22" (3/3) ... [2023-09-01 04:42:22,379 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longest.i [2023-09-01 04:42:22,388 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 04:42:22,398 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 04:42:22,398 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-09-01 04:42:22,398 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 04:42:22,537 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-01 04:42:22,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 283 places, 291 transitions, 598 flow [2023-09-01 04:42:22,680 INFO L130 PetriNetUnfolder]: 15/289 cut-off events. [2023-09-01 04:42:22,681 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 04:42:22,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 289 events. 15/289 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 464 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 217. Up to 2 conditions per place. [2023-09-01 04:42:22,690 INFO L82 GeneralOperation]: Start removeDead. Operand has 283 places, 291 transitions, 598 flow [2023-09-01 04:42:22,696 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 272 places, 280 transitions, 569 flow [2023-09-01 04:42:22,699 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 04:42:22,708 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 272 places, 280 transitions, 569 flow [2023-09-01 04:42:22,712 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 272 places, 280 transitions, 569 flow [2023-09-01 04:42:22,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 280 transitions, 569 flow [2023-09-01 04:42:22,774 INFO L130 PetriNetUnfolder]: 15/280 cut-off events. [2023-09-01 04:42:22,774 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 04:42:22,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 280 events. 15/280 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 423 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 217. Up to 2 conditions per place. [2023-09-01 04:42:22,787 INFO L119 LiptonReduction]: Number of co-enabled transitions 22068 [2023-09-01 04:42:30,633 INFO L134 LiptonReduction]: Checked pairs total: 50861 [2023-09-01 04:42:30,633 INFO L136 LiptonReduction]: Total number of compositions: 267 [2023-09-01 04:42:30,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 04:42:30,653 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@d843dcb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 04:42:30,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-09-01 04:42:30,657 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2023-09-01 04:42:30,658 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 04:42:30,658 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:42:30,658 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 04:42:30,659 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:42:30,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:42:30,663 INFO L85 PathProgramCache]: Analyzing trace with hash -471379928, now seen corresponding path program 1 times [2023-09-01 04:42:30,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:42:30,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352359570] [2023-09-01 04:42:30,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:42:30,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:42:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:42:32,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:42:32,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:42:32,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352359570] [2023-09-01 04:42:32,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352359570] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:42:32,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:42:32,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 04:42:32,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771999890] [2023-09-01 04:42:32,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:42:32,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 04:42:32,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:42:32,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 04:42:32,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 04:42:32,584 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 558 [2023-09-01 04:42:32,588 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 78 transitions, 165 flow. Second operand has 5 states, 5 states have (on average 255.2) internal successors, (1276), 5 states have internal predecessors, (1276), 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) [2023-09-01 04:42:32,588 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:42:32,589 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 558 [2023-09-01 04:42:32,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:42:33,404 INFO L130 PetriNetUnfolder]: 3012/4951 cut-off events. [2023-09-01 04:42:33,405 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2023-09-01 04:42:33,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9773 conditions, 4951 events. 3012/4951 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 26092 event pairs, 2374 based on Foata normal form. 0/3452 useless extension candidates. Maximal degree in co-relation 9558. Up to 4712 conditions per place. [2023-09-01 04:42:33,437 INFO L137 encePairwiseOnDemand]: 548/558 looper letters, 70 selfloop transitions, 9 changer transitions 0/85 dead transitions. [2023-09-01 04:42:33,438 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 85 transitions, 337 flow [2023-09-01 04:42:33,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 04:42:33,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 04:42:33,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1607 transitions. [2023-09-01 04:42:33,458 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47998805256869775 [2023-09-01 04:42:33,459 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1607 transitions. [2023-09-01 04:42:33,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1607 transitions. [2023-09-01 04:42:33,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:42:33,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1607 transitions. [2023-09-01 04:42:33,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 267.8333333333333) internal successors, (1607), 6 states have internal predecessors, (1607), 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) [2023-09-01 04:42:33,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 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) [2023-09-01 04:42:33,485 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 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) [2023-09-01 04:42:33,487 INFO L175 Difference]: Start difference. First operand has 76 places, 78 transitions, 165 flow. Second operand 6 states and 1607 transitions. [2023-09-01 04:42:33,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 85 transitions, 337 flow [2023-09-01 04:42:33,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 85 transitions, 332 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 04:42:33,498 INFO L231 Difference]: Finished difference. Result has 82 places, 84 transitions, 216 flow [2023-09-01 04:42:33,500 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=216, PETRI_PLACES=82, PETRI_TRANSITIONS=84} [2023-09-01 04:42:33,504 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 6 predicate places. [2023-09-01 04:42:33,504 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 84 transitions, 216 flow [2023-09-01 04:42:33,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 255.2) internal successors, (1276), 5 states have internal predecessors, (1276), 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) [2023-09-01 04:42:33,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:42:33,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:42:33,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 04:42:33,508 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:42:33,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:42:33,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1727417925, now seen corresponding path program 1 times [2023-09-01 04:42:33,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:42:33,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674802770] [2023-09-01 04:42:33,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:42:33,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:42:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:42:34,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:42:34,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:42:34,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674802770] [2023-09-01 04:42:34,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674802770] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:42:34,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:42:34,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 04:42:34,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228435330] [2023-09-01 04:42:34,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:42:34,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 04:42:34,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:42:34,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 04:42:34,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-09-01 04:42:35,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 558 [2023-09-01 04:42:35,324 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 84 transitions, 216 flow. Second operand has 6 states, 6 states have (on average 252.16666666666666) internal successors, (1513), 6 states have internal predecessors, (1513), 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) [2023-09-01 04:42:35,324 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:42:35,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 558 [2023-09-01 04:42:35,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:42:36,186 INFO L130 PetriNetUnfolder]: 3238/5330 cut-off events. [2023-09-01 04:42:36,186 INFO L131 PetriNetUnfolder]: For 199/199 co-relation queries the response was YES. [2023-09-01 04:42:36,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10936 conditions, 5330 events. 3238/5330 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 28893 event pairs, 666 based on Foata normal form. 0/3769 useless extension candidates. Maximal degree in co-relation 9595. Up to 4756 conditions per place. [2023-09-01 04:42:36,217 INFO L137 encePairwiseOnDemand]: 549/558 looper letters, 127 selfloop transitions, 17 changer transitions 0/150 dead transitions. [2023-09-01 04:42:36,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 150 transitions, 654 flow [2023-09-01 04:42:36,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 04:42:36,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 04:42:36,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1648 transitions. [2023-09-01 04:42:36,222 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4922341696535245 [2023-09-01 04:42:36,222 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1648 transitions. [2023-09-01 04:42:36,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1648 transitions. [2023-09-01 04:42:36,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:42:36,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1648 transitions. [2023-09-01 04:42:36,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 274.6666666666667) internal successors, (1648), 6 states have internal predecessors, (1648), 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) [2023-09-01 04:42:36,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 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) [2023-09-01 04:42:36,233 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 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) [2023-09-01 04:42:36,234 INFO L175 Difference]: Start difference. First operand has 82 places, 84 transitions, 216 flow. Second operand 6 states and 1648 transitions. [2023-09-01 04:42:36,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 150 transitions, 654 flow [2023-09-01 04:42:36,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 150 transitions, 654 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 04:42:36,240 INFO L231 Difference]: Finished difference. Result has 90 places, 93 transitions, 310 flow [2023-09-01 04:42:36,240 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=310, PETRI_PLACES=90, PETRI_TRANSITIONS=93} [2023-09-01 04:42:36,241 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 14 predicate places. [2023-09-01 04:42:36,241 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 93 transitions, 310 flow [2023-09-01 04:42:36,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 252.16666666666666) internal successors, (1513), 6 states have internal predecessors, (1513), 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) [2023-09-01 04:42:36,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:42:36,243 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:42:36,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 04:42:36,243 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:42:36,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:42:36,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1727873625, now seen corresponding path program 2 times [2023-09-01 04:42:36,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:42:36,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347473686] [2023-09-01 04:42:36,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:42:36,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:42:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:42:36,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:42:36,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:42:36,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347473686] [2023-09-01 04:42:36,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347473686] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:42:36,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:42:36,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 04:42:36,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780843319] [2023-09-01 04:42:36,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:42:36,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 04:42:36,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:42:36,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 04:42:36,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-09-01 04:42:36,944 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 558 [2023-09-01 04:42:36,946 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 93 transitions, 310 flow. Second operand has 6 states, 6 states have (on average 252.16666666666666) internal successors, (1513), 6 states have internal predecessors, (1513), 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) [2023-09-01 04:42:36,947 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:42:36,947 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 558 [2023-09-01 04:42:36,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:42:37,647 INFO L130 PetriNetUnfolder]: 3284/5402 cut-off events. [2023-09-01 04:42:37,648 INFO L131 PetriNetUnfolder]: For 867/867 co-relation queries the response was YES. [2023-09-01 04:42:37,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11756 conditions, 5402 events. 3284/5402 cut-off events. For 867/867 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 29623 event pairs, 745 based on Foata normal form. 0/3847 useless extension candidates. Maximal degree in co-relation 10590. Up to 4706 conditions per place. [2023-09-01 04:42:37,690 INFO L137 encePairwiseOnDemand]: 551/558 looper letters, 119 selfloop transitions, 16 changer transitions 0/141 dead transitions. [2023-09-01 04:42:37,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 141 transitions, 697 flow [2023-09-01 04:42:37,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 04:42:37,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 04:42:37,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1380 transitions. [2023-09-01 04:42:37,694 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4946236559139785 [2023-09-01 04:42:37,694 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1380 transitions. [2023-09-01 04:42:37,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1380 transitions. [2023-09-01 04:42:37,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:42:37,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1380 transitions. [2023-09-01 04:42:37,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 276.0) internal successors, (1380), 5 states have internal predecessors, (1380), 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) [2023-09-01 04:42:37,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 558.0) internal successors, (3348), 6 states have internal predecessors, (3348), 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) [2023-09-01 04:42:37,705 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 558.0) internal successors, (3348), 6 states have internal predecessors, (3348), 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) [2023-09-01 04:42:37,705 INFO L175 Difference]: Start difference. First operand has 90 places, 93 transitions, 310 flow. Second operand 5 states and 1380 transitions. [2023-09-01 04:42:37,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 141 transitions, 697 flow [2023-09-01 04:42:37,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 141 transitions, 679 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-09-01 04:42:37,718 INFO L231 Difference]: Finished difference. Result has 96 places, 98 transitions, 376 flow [2023-09-01 04:42:37,719 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=376, PETRI_PLACES=96, PETRI_TRANSITIONS=98} [2023-09-01 04:42:37,720 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 20 predicate places. [2023-09-01 04:42:37,721 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 98 transitions, 376 flow [2023-09-01 04:42:37,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 252.16666666666666) internal successors, (1513), 6 states have internal predecessors, (1513), 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) [2023-09-01 04:42:37,722 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:42:37,722 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:42:37,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 04:42:37,723 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:42:37,723 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:42:37,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1665267153, now seen corresponding path program 1 times [2023-09-01 04:42:37,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:42:37,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027344533] [2023-09-01 04:42:37,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:42:37,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:42:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:42:38,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:42:38,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:42:38,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027344533] [2023-09-01 04:42:38,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027344533] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:42:38,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:42:38,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 04:42:38,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52995052] [2023-09-01 04:42:38,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:42:38,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 04:42:38,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:42:38,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 04:42:38,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 04:42:38,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 558 [2023-09-01 04:42:38,659 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 98 transitions, 376 flow. Second operand has 5 states, 5 states have (on average 255.8) internal successors, (1279), 5 states have internal predecessors, (1279), 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) [2023-09-01 04:42:38,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:42:38,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 558 [2023-09-01 04:42:38,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:42:39,442 INFO L130 PetriNetUnfolder]: 3280/5405 cut-off events. [2023-09-01 04:42:39,443 INFO L131 PetriNetUnfolder]: For 1542/1542 co-relation queries the response was YES. [2023-09-01 04:42:39,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11936 conditions, 5405 events. 3280/5405 cut-off events. For 1542/1542 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 29264 event pairs, 2430 based on Foata normal form. 0/3849 useless extension candidates. Maximal degree in co-relation 10737. Up to 5147 conditions per place. [2023-09-01 04:42:39,476 INFO L137 encePairwiseOnDemand]: 549/558 looper letters, 87 selfloop transitions, 10 changer transitions 0/103 dead transitions. [2023-09-01 04:42:39,477 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 103 transitions, 582 flow [2023-09-01 04:42:39,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 04:42:39,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 04:42:39,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1609 transitions. [2023-09-01 04:42:39,485 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4805854241338112 [2023-09-01 04:42:39,485 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1609 transitions. [2023-09-01 04:42:39,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1609 transitions. [2023-09-01 04:42:39,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:42:39,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1609 transitions. [2023-09-01 04:42:39,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 268.1666666666667) internal successors, (1609), 6 states have internal predecessors, (1609), 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) [2023-09-01 04:42:39,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 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) [2023-09-01 04:42:39,497 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 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) [2023-09-01 04:42:39,497 INFO L175 Difference]: Start difference. First operand has 96 places, 98 transitions, 376 flow. Second operand 6 states and 1609 transitions. [2023-09-01 04:42:39,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 103 transitions, 582 flow [2023-09-01 04:42:39,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 103 transitions, 574 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-09-01 04:42:39,504 INFO L231 Difference]: Finished difference. Result has 102 places, 100 transitions, 408 flow [2023-09-01 04:42:39,504 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=408, PETRI_PLACES=102, PETRI_TRANSITIONS=100} [2023-09-01 04:42:39,506 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 26 predicate places. [2023-09-01 04:42:39,506 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 100 transitions, 408 flow [2023-09-01 04:42:39,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 255.8) internal successors, (1279), 5 states have internal predecessors, (1279), 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) [2023-09-01 04:42:39,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:42:39,507 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:42:39,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 04:42:39,508 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:42:39,508 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:42:39,508 INFO L85 PathProgramCache]: Analyzing trace with hash 133239830, now seen corresponding path program 1 times [2023-09-01 04:42:39,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:42:39,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446740796] [2023-09-01 04:42:39,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:42:39,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:42:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:42:39,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:42:39,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:42:39,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446740796] [2023-09-01 04:42:39,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446740796] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:42:39,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:42:39,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 04:42:39,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274652927] [2023-09-01 04:42:39,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:42:39,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 04:42:39,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:42:39,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 04:42:39,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 04:42:39,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 558 [2023-09-01 04:42:39,569 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 100 transitions, 408 flow. Second operand has 3 states, 3 states have (on average 276.3333333333333) internal successors, (829), 3 states have internal predecessors, (829), 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) [2023-09-01 04:42:39,569 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:42:39,569 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 558 [2023-09-01 04:42:39,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:42:40,435 INFO L130 PetriNetUnfolder]: 5225/8793 cut-off events. [2023-09-01 04:42:40,435 INFO L131 PetriNetUnfolder]: For 2381/2418 co-relation queries the response was YES. [2023-09-01 04:42:40,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19046 conditions, 8793 events. 5225/8793 cut-off events. For 2381/2418 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 55682 event pairs, 2351 based on Foata normal form. 37/6603 useless extension candidates. Maximal degree in co-relation 17492. Up to 4846 conditions per place. [2023-09-01 04:42:40,485 INFO L137 encePairwiseOnDemand]: 553/558 looper letters, 159 selfloop transitions, 2 changer transitions 0/172 dead transitions. [2023-09-01 04:42:40,486 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 172 transitions, 972 flow [2023-09-01 04:42:40,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 04:42:40,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 04:42:40,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 953 transitions. [2023-09-01 04:42:40,489 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5692951015531661 [2023-09-01 04:42:40,489 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 953 transitions. [2023-09-01 04:42:40,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 953 transitions. [2023-09-01 04:42:40,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:42:40,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 953 transitions. [2023-09-01 04:42:40,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.6666666666667) internal successors, (953), 3 states have internal predecessors, (953), 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) [2023-09-01 04:42:40,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 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) [2023-09-01 04:42:40,496 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 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) [2023-09-01 04:42:40,497 INFO L175 Difference]: Start difference. First operand has 102 places, 100 transitions, 408 flow. Second operand 3 states and 953 transitions. [2023-09-01 04:42:40,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 172 transitions, 972 flow [2023-09-01 04:42:40,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 172 transitions, 956 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 04:42:40,505 INFO L231 Difference]: Finished difference. Result has 101 places, 101 transitions, 408 flow [2023-09-01 04:42:40,505 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=101, PETRI_TRANSITIONS=101} [2023-09-01 04:42:40,507 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 25 predicate places. [2023-09-01 04:42:40,507 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 101 transitions, 408 flow [2023-09-01 04:42:40,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 276.3333333333333) internal successors, (829), 3 states have internal predecessors, (829), 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) [2023-09-01 04:42:40,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:42:40,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:42:40,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 04:42:40,508 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:42:40,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:42:40,509 INFO L85 PathProgramCache]: Analyzing trace with hash 791606712, now seen corresponding path program 1 times [2023-09-01 04:42:40,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:42:40,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123434742] [2023-09-01 04:42:40,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:42:40,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:42:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:42:41,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:42:41,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:42:41,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123434742] [2023-09-01 04:42:41,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123434742] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:42:41,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:42:41,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 04:42:41,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478199834] [2023-09-01 04:42:41,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:42:41,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 04:42:41,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:42:41,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 04:42:41,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-09-01 04:42:42,265 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 558 [2023-09-01 04:42:42,267 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 101 transitions, 408 flow. Second operand has 6 states, 6 states have (on average 252.66666666666666) internal successors, (1516), 6 states have internal predecessors, (1516), 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) [2023-09-01 04:42:42,267 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:42:42,268 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 558 [2023-09-01 04:42:42,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:42:43,866 INFO L130 PetriNetUnfolder]: 5786/9558 cut-off events. [2023-09-01 04:42:43,866 INFO L131 PetriNetUnfolder]: For 2413/2413 co-relation queries the response was YES. [2023-09-01 04:42:43,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22022 conditions, 9558 events. 5786/9558 cut-off events. For 2413/2413 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 58105 event pairs, 1166 based on Foata normal form. 82/7379 useless extension candidates. Maximal degree in co-relation 13503. Up to 8279 conditions per place. [2023-09-01 04:42:43,912 INFO L137 encePairwiseOnDemand]: 548/558 looper letters, 140 selfloop transitions, 20 changer transitions 0/166 dead transitions. [2023-09-01 04:42:43,912 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 166 transitions, 928 flow [2023-09-01 04:42:43,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 04:42:43,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 04:42:43,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1652 transitions. [2023-09-01 04:42:43,917 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4934289127837515 [2023-09-01 04:42:43,917 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1652 transitions. [2023-09-01 04:42:43,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1652 transitions. [2023-09-01 04:42:43,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:42:43,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1652 transitions. [2023-09-01 04:42:43,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 275.3333333333333) internal successors, (1652), 6 states have internal predecessors, (1652), 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) [2023-09-01 04:42:43,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 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) [2023-09-01 04:42:43,926 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 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) [2023-09-01 04:42:43,927 INFO L175 Difference]: Start difference. First operand has 101 places, 101 transitions, 408 flow. Second operand 6 states and 1652 transitions. [2023-09-01 04:42:43,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 166 transitions, 928 flow [2023-09-01 04:42:43,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 166 transitions, 918 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 04:42:43,945 INFO L231 Difference]: Finished difference. Result has 106 places, 103 transitions, 474 flow [2023-09-01 04:42:43,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=474, PETRI_PLACES=106, PETRI_TRANSITIONS=103} [2023-09-01 04:42:43,948 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 30 predicate places. [2023-09-01 04:42:43,948 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 103 transitions, 474 flow [2023-09-01 04:42:43,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 252.66666666666666) internal successors, (1516), 6 states have internal predecessors, (1516), 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) [2023-09-01 04:42:43,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:42:43,949 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:42:43,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 04:42:43,950 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:42:43,950 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:42:43,951 INFO L85 PathProgramCache]: Analyzing trace with hash -926142348, now seen corresponding path program 2 times [2023-09-01 04:42:43,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:42:43,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175768923] [2023-09-01 04:42:43,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:42:43,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:42:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:42:44,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:42:44,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:42:44,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175768923] [2023-09-01 04:42:44,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175768923] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:42:44,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:42:44,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 04:42:44,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868355963] [2023-09-01 04:42:44,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:42:44,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 04:42:44,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:42:44,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 04:42:44,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-09-01 04:42:44,924 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 558 [2023-09-01 04:42:44,925 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 103 transitions, 474 flow. Second operand has 6 states, 6 states have (on average 253.66666666666666) internal successors, (1522), 6 states have internal predecessors, (1522), 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) [2023-09-01 04:42:44,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:42:44,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 558 [2023-09-01 04:42:44,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:42:46,033 INFO L130 PetriNetUnfolder]: 6018/9970 cut-off events. [2023-09-01 04:42:46,034 INFO L131 PetriNetUnfolder]: For 4056/4056 co-relation queries the response was YES. [2023-09-01 04:42:46,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23656 conditions, 9970 events. 6018/9970 cut-off events. For 4056/4056 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 60785 event pairs, 3130 based on Foata normal form. 82/7767 useless extension candidates. Maximal degree in co-relation 12052. Up to 8136 conditions per place. [2023-09-01 04:42:46,096 INFO L137 encePairwiseOnDemand]: 548/558 looper letters, 141 selfloop transitions, 23 changer transitions 0/170 dead transitions. [2023-09-01 04:42:46,096 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 170 transitions, 1012 flow [2023-09-01 04:42:46,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 04:42:46,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 04:42:46,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1657 transitions. [2023-09-01 04:42:46,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49492234169653526 [2023-09-01 04:42:46,101 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1657 transitions. [2023-09-01 04:42:46,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1657 transitions. [2023-09-01 04:42:46,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:42:46,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1657 transitions. [2023-09-01 04:42:46,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 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) [2023-09-01 04:42:46,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 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) [2023-09-01 04:42:46,112 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 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) [2023-09-01 04:42:46,112 INFO L175 Difference]: Start difference. First operand has 106 places, 103 transitions, 474 flow. Second operand 6 states and 1657 transitions. [2023-09-01 04:42:46,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 170 transitions, 1012 flow [2023-09-01 04:42:46,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 170 transitions, 980 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 04:42:46,133 INFO L231 Difference]: Finished difference. Result has 108 places, 106 transitions, 533 flow [2023-09-01 04:42:46,134 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=533, PETRI_PLACES=108, PETRI_TRANSITIONS=106} [2023-09-01 04:42:46,134 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 32 predicate places. [2023-09-01 04:42:46,134 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 106 transitions, 533 flow [2023-09-01 04:42:46,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 253.66666666666666) internal successors, (1522), 6 states have internal predecessors, (1522), 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) [2023-09-01 04:42:46,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:42:46,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:42:46,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 04:42:46,136 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:42:46,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:42:46,136 INFO L85 PathProgramCache]: Analyzing trace with hash 89131410, now seen corresponding path program 3 times [2023-09-01 04:42:46,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:42:46,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664703483] [2023-09-01 04:42:46,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:42:46,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:42:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:42:46,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:42:46,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:42:46,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664703483] [2023-09-01 04:42:46,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664703483] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:42:46,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:42:46,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 04:42:46,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207474679] [2023-09-01 04:42:46,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:42:46,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 04:42:46,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:42:46,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 04:42:46,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-09-01 04:42:47,185 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 558 [2023-09-01 04:42:47,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 106 transitions, 533 flow. Second operand has 6 states, 6 states have (on average 253.66666666666666) internal successors, (1522), 6 states have internal predecessors, (1522), 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) [2023-09-01 04:42:47,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:42:47,188 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 558 [2023-09-01 04:42:47,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:42:48,142 INFO L130 PetriNetUnfolder]: 6012/9917 cut-off events. [2023-09-01 04:42:48,142 INFO L131 PetriNetUnfolder]: For 6455/6455 co-relation queries the response was YES. [2023-09-01 04:42:48,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24269 conditions, 9917 events. 6012/9917 cut-off events. For 6455/6455 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 60320 event pairs, 1447 based on Foata normal form. 82/7719 useless extension candidates. Maximal degree in co-relation 20101. Up to 7790 conditions per place. [2023-09-01 04:42:48,293 INFO L137 encePairwiseOnDemand]: 549/558 looper letters, 141 selfloop transitions, 24 changer transitions 0/171 dead transitions. [2023-09-01 04:42:48,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 171 transitions, 1063 flow [2023-09-01 04:42:48,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 04:42:48,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 04:42:48,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1657 transitions. [2023-09-01 04:42:48,298 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49492234169653526 [2023-09-01 04:42:48,298 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1657 transitions. [2023-09-01 04:42:48,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1657 transitions. [2023-09-01 04:42:48,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:42:48,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1657 transitions. [2023-09-01 04:42:48,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 276.1666666666667) internal successors, (1657), 6 states have internal predecessors, (1657), 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) [2023-09-01 04:42:48,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 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) [2023-09-01 04:42:48,308 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 558.0) internal successors, (3906), 7 states have internal predecessors, (3906), 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) [2023-09-01 04:42:48,308 INFO L175 Difference]: Start difference. First operand has 108 places, 106 transitions, 533 flow. Second operand 6 states and 1657 transitions. [2023-09-01 04:42:48,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 171 transitions, 1063 flow [2023-09-01 04:42:48,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 171 transitions, 1021 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-09-01 04:42:48,339 INFO L231 Difference]: Finished difference. Result has 111 places, 108 transitions, 580 flow [2023-09-01 04:42:48,339 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=580, PETRI_PLACES=111, PETRI_TRANSITIONS=108} [2023-09-01 04:42:48,340 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 35 predicate places. [2023-09-01 04:42:48,340 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 108 transitions, 580 flow [2023-09-01 04:42:48,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 253.66666666666666) internal successors, (1522), 6 states have internal predecessors, (1522), 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) [2023-09-01 04:42:48,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:42:48,341 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:42:48,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 04:42:48,341 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:42:48,342 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:42:48,342 INFO L85 PathProgramCache]: Analyzing trace with hash -156159243, now seen corresponding path program 1 times [2023-09-01 04:42:48,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:42:48,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888645572] [2023-09-01 04:42:48,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:42:48,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:42:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:42:48,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:42:48,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:42:48,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888645572] [2023-09-01 04:42:48,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888645572] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:42:48,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:42:48,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 04:42:48,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488894080] [2023-09-01 04:42:48,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:42:48,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 04:42:48,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:42:48,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 04:42:48,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 04:42:48,391 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 558 [2023-09-01 04:42:48,392 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 108 transitions, 580 flow. Second operand has 3 states, 3 states have (on average 276.3333333333333) internal successors, (829), 3 states have internal predecessors, (829), 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) [2023-09-01 04:42:48,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:42:48,392 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 558 [2023-09-01 04:42:48,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:42:48,955 INFO L130 PetriNetUnfolder]: 4278/7094 cut-off events. [2023-09-01 04:42:48,955 INFO L131 PetriNetUnfolder]: For 3356/3369 co-relation queries the response was YES. [2023-09-01 04:42:48,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16468 conditions, 7094 events. 4278/7094 cut-off events. For 3356/3369 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 39308 event pairs, 2135 based on Foata normal form. 185/5285 useless extension candidates. Maximal degree in co-relation 14635. Up to 4581 conditions per place. [2023-09-01 04:42:48,996 INFO L137 encePairwiseOnDemand]: 554/558 looper letters, 109 selfloop transitions, 3 changer transitions 0/121 dead transitions. [2023-09-01 04:42:48,996 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 121 transitions, 712 flow [2023-09-01 04:42:48,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 04:42:48,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 04:42:48,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 917 transitions. [2023-09-01 04:42:48,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5477897252090801 [2023-09-01 04:42:48,999 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 917 transitions. [2023-09-01 04:42:48,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 917 transitions. [2023-09-01 04:42:49,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:42:49,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 917 transitions. [2023-09-01 04:42:49,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 305.6666666666667) internal successors, (917), 3 states have internal predecessors, (917), 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) [2023-09-01 04:42:49,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 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) [2023-09-01 04:42:49,005 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 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) [2023-09-01 04:42:49,005 INFO L175 Difference]: Start difference. First operand has 111 places, 108 transitions, 580 flow. Second operand 3 states and 917 transitions. [2023-09-01 04:42:49,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 121 transitions, 712 flow [2023-09-01 04:42:49,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 121 transitions, 625 flow, removed 4 selfloop flow, removed 15 redundant places. [2023-09-01 04:42:49,012 INFO L231 Difference]: Finished difference. Result has 94 places, 87 transitions, 327 flow [2023-09-01 04:42:49,012 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=94, PETRI_TRANSITIONS=87} [2023-09-01 04:42:49,013 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 18 predicate places. [2023-09-01 04:42:49,013 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 87 transitions, 327 flow [2023-09-01 04:42:49,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 276.3333333333333) internal successors, (829), 3 states have internal predecessors, (829), 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) [2023-09-01 04:42:49,014 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:42:49,014 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:42:49,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 04:42:49,014 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:42:49,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:42:49,015 INFO L85 PathProgramCache]: Analyzing trace with hash -917278505, now seen corresponding path program 1 times [2023-09-01 04:42:49,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:42:49,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762888323] [2023-09-01 04:42:49,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:42:49,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:42:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:42:49,053 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:42:49,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:42:49,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762888323] [2023-09-01 04:42:49,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762888323] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-01 04:42:49,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293417949] [2023-09-01 04:42:49,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:42:49,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-01 04:42:49,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 04:42:49,061 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) [2023-09-01 04:42:49,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-09-01 04:42:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:42:49,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjunts are in the unsatisfiable core [2023-09-01 04:42:49,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-09-01 04:42:49,270 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:42:49,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-01 04:42:49,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293417949] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:42:49,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-01 04:42:49,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-09-01 04:42:49,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075413545] [2023-09-01 04:42:49,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:42:49,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 04:42:49,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:42:49,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 04:42:49,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-01 04:42:49,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 558 [2023-09-01 04:42:49,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 87 transitions, 327 flow. Second operand has 4 states, 4 states have (on average 276.25) internal successors, (1105), 4 states have internal predecessors, (1105), 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) [2023-09-01 04:42:49,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:42:49,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 558 [2023-09-01 04:42:49,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:42:49,972 INFO L130 PetriNetUnfolder]: 3764/6736 cut-off events. [2023-09-01 04:42:49,972 INFO L131 PetriNetUnfolder]: For 1255/1270 co-relation queries the response was YES. [2023-09-01 04:42:49,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14255 conditions, 6736 events. 3764/6736 cut-off events. For 1255/1270 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 40457 event pairs, 119 based on Foata normal form. 13/5095 useless extension candidates. Maximal degree in co-relation 12791. Up to 3217 conditions per place. [2023-09-01 04:42:50,006 INFO L137 encePairwiseOnDemand]: 555/558 looper letters, 170 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2023-09-01 04:42:50,006 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 183 transitions, 948 flow [2023-09-01 04:42:50,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 04:42:50,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 04:42:50,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1248 transitions. [2023-09-01 04:42:50,010 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5591397849462365 [2023-09-01 04:42:50,010 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1248 transitions. [2023-09-01 04:42:50,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1248 transitions. [2023-09-01 04:42:50,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:42:50,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1248 transitions. [2023-09-01 04:42:50,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 312.0) internal successors, (1248), 4 states have internal predecessors, (1248), 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) [2023-09-01 04:42:50,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 558.0) internal successors, (2790), 5 states have internal predecessors, (2790), 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) [2023-09-01 04:42:50,017 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 558.0) internal successors, (2790), 5 states have internal predecessors, (2790), 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) [2023-09-01 04:42:50,017 INFO L175 Difference]: Start difference. First operand has 94 places, 87 transitions, 327 flow. Second operand 4 states and 1248 transitions. [2023-09-01 04:42:50,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 183 transitions, 948 flow [2023-09-01 04:42:50,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 183 transitions, 944 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 04:42:50,024 INFO L231 Difference]: Finished difference. Result has 95 places, 86 transitions, 324 flow [2023-09-01 04:42:50,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=95, PETRI_TRANSITIONS=86} [2023-09-01 04:42:50,025 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 19 predicate places. [2023-09-01 04:42:50,025 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 86 transitions, 324 flow [2023-09-01 04:42:50,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 276.25) internal successors, (1105), 4 states have internal predecessors, (1105), 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) [2023-09-01 04:42:50,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:42:50,026 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:42:50,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-09-01 04:42:50,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-09-01 04:42:50,232 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:42:50,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:42:50,233 INFO L85 PathProgramCache]: Analyzing trace with hash -917278443, now seen corresponding path program 1 times [2023-09-01 04:42:50,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:42:50,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025772140] [2023-09-01 04:42:50,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:42:50,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:42:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:42:50,265 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-01 04:42:50,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:42:50,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025772140] [2023-09-01 04:42:50,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025772140] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:42:50,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:42:50,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 04:42:50,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128066461] [2023-09-01 04:42:50,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:42:50,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 04:42:50,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:42:50,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 04:42:50,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 04:42:50,276 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 558 [2023-09-01 04:42:50,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 86 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 276.0) internal successors, (828), 3 states have internal predecessors, (828), 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) [2023-09-01 04:42:50,277 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:42:50,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 558 [2023-09-01 04:42:50,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:42:50,836 INFO L130 PetriNetUnfolder]: 3554/6420 cut-off events. [2023-09-01 04:42:50,836 INFO L131 PetriNetUnfolder]: For 1676/1691 co-relation queries the response was YES. [2023-09-01 04:42:50,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13675 conditions, 6420 events. 3554/6420 cut-off events. For 1676/1691 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 37862 event pairs, 477 based on Foata normal form. 13/4961 useless extension candidates. Maximal degree in co-relation 12310. Up to 4534 conditions per place. [2023-09-01 04:42:50,868 INFO L137 encePairwiseOnDemand]: 554/558 looper letters, 111 selfloop transitions, 4 changer transitions 0/126 dead transitions. [2023-09-01 04:42:50,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 126 transitions, 673 flow [2023-09-01 04:42:50,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 04:42:50,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 04:42:50,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 917 transitions. [2023-09-01 04:42:50,872 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5477897252090801 [2023-09-01 04:42:50,872 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 917 transitions. [2023-09-01 04:42:50,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 917 transitions. [2023-09-01 04:42:50,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:42:50,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 917 transitions. [2023-09-01 04:42:50,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 305.6666666666667) internal successors, (917), 3 states have internal predecessors, (917), 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) [2023-09-01 04:42:50,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 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) [2023-09-01 04:42:50,879 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 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) [2023-09-01 04:42:50,879 INFO L175 Difference]: Start difference. First operand has 95 places, 86 transitions, 324 flow. Second operand 3 states and 917 transitions. [2023-09-01 04:42:50,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 126 transitions, 673 flow [2023-09-01 04:42:50,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 126 transitions, 670 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 04:42:50,884 INFO L231 Difference]: Finished difference. Result has 95 places, 86 transitions, 333 flow [2023-09-01 04:42:50,885 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=333, PETRI_PLACES=95, PETRI_TRANSITIONS=86} [2023-09-01 04:42:50,885 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 19 predicate places. [2023-09-01 04:42:50,886 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 86 transitions, 333 flow [2023-09-01 04:42:50,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 276.0) internal successors, (828), 3 states have internal predecessors, (828), 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) [2023-09-01 04:42:50,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:42:50,887 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:42:50,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-01 04:42:50,887 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:42:50,887 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:42:50,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1914224002, now seen corresponding path program 1 times [2023-09-01 04:42:50,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:42:50,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088642400] [2023-09-01 04:42:50,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:42:50,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:42:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:42:50,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:42:50,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:42:50,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088642400] [2023-09-01 04:42:50,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088642400] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:42:50,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:42:50,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 04:42:50,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637560174] [2023-09-01 04:42:50,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:42:50,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 04:42:50,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:42:50,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 04:42:50,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 04:42:50,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 558 [2023-09-01 04:42:50,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 86 transitions, 333 flow. Second operand has 3 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 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) [2023-09-01 04:42:50,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:42:50,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 558 [2023-09-01 04:42:50,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:42:51,617 INFO L130 PetriNetUnfolder]: 4137/7171 cut-off events. [2023-09-01 04:42:51,617 INFO L131 PetriNetUnfolder]: For 4724/4733 co-relation queries the response was YES. [2023-09-01 04:42:51,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17065 conditions, 7171 events. 4137/7171 cut-off events. For 4724/4733 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 42190 event pairs, 1699 based on Foata normal form. 9/5613 useless extension candidates. Maximal degree in co-relation 15486. Up to 5966 conditions per place. [2023-09-01 04:42:51,655 INFO L137 encePairwiseOnDemand]: 551/558 looper letters, 115 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2023-09-01 04:42:51,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 128 transitions, 684 flow [2023-09-01 04:42:51,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 04:42:51,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 04:42:51,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2023-09-01 04:42:51,663 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5501792114695341 [2023-09-01 04:42:51,664 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 921 transitions. [2023-09-01 04:42:51,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 921 transitions. [2023-09-01 04:42:51,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:42:51,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 921 transitions. [2023-09-01 04:42:51,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 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) [2023-09-01 04:42:51,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 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) [2023-09-01 04:42:51,669 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 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) [2023-09-01 04:42:51,669 INFO L175 Difference]: Start difference. First operand has 95 places, 86 transitions, 333 flow. Second operand 3 states and 921 transitions. [2023-09-01 04:42:51,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 128 transitions, 684 flow [2023-09-01 04:42:51,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 128 transitions, 676 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 04:42:51,676 INFO L231 Difference]: Finished difference. Result has 97 places, 87 transitions, 349 flow [2023-09-01 04:42:51,676 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=349, PETRI_PLACES=97, PETRI_TRANSITIONS=87} [2023-09-01 04:42:51,676 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 21 predicate places. [2023-09-01 04:42:51,676 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 87 transitions, 349 flow [2023-09-01 04:42:51,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 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) [2023-09-01 04:42:51,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:42:51,677 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:42:51,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-09-01 04:42:51,677 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:42:51,678 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:42:51,678 INFO L85 PathProgramCache]: Analyzing trace with hash -784742033, now seen corresponding path program 1 times [2023-09-01 04:42:51,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:42:51,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538492181] [2023-09-01 04:42:51,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:42:51,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:42:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:42:53,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:42:53,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:42:53,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538492181] [2023-09-01 04:42:53,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538492181] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:42:53,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:42:53,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-09-01 04:42:53,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460883874] [2023-09-01 04:42:53,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:42:53,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-09-01 04:42:53,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:42:53,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-09-01 04:42:53,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-09-01 04:42:54,925 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 558 [2023-09-01 04:42:54,926 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 87 transitions, 349 flow. Second operand has 14 states, 14 states have (on average 234.35714285714286) internal successors, (3281), 14 states have internal predecessors, (3281), 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) [2023-09-01 04:42:54,927 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:42:54,927 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 558 [2023-09-01 04:42:54,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:42:55,940 INFO L130 PetriNetUnfolder]: 4284/7415 cut-off events. [2023-09-01 04:42:55,941 INFO L131 PetriNetUnfolder]: For 3660/3660 co-relation queries the response was YES. [2023-09-01 04:42:55,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18171 conditions, 7415 events. 4284/7415 cut-off events. For 3660/3660 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 41629 event pairs, 3472 based on Foata normal form. 0/6015 useless extension candidates. Maximal degree in co-relation 16520. Up to 6919 conditions per place. [2023-09-01 04:42:55,972 INFO L137 encePairwiseOnDemand]: 541/558 looper letters, 79 selfloop transitions, 28 changer transitions 1/115 dead transitions. [2023-09-01 04:42:55,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 115 transitions, 675 flow [2023-09-01 04:42:55,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-01 04:42:55,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-09-01 04:42:55,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3595 transitions. [2023-09-01 04:42:55,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4295101553166069 [2023-09-01 04:42:55,982 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3595 transitions. [2023-09-01 04:42:55,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3595 transitions. [2023-09-01 04:42:55,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:42:55,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3595 transitions. [2023-09-01 04:42:55,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 239.66666666666666) internal successors, (3595), 15 states have internal predecessors, (3595), 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) [2023-09-01 04:42:56,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 558.0) internal successors, (8928), 16 states have internal predecessors, (8928), 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) [2023-09-01 04:42:56,003 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 558.0) internal successors, (8928), 16 states have internal predecessors, (8928), 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) [2023-09-01 04:42:56,003 INFO L175 Difference]: Start difference. First operand has 97 places, 87 transitions, 349 flow. Second operand 15 states and 3595 transitions. [2023-09-01 04:42:56,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 115 transitions, 675 flow [2023-09-01 04:42:56,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 115 transitions, 671 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 04:42:56,013 INFO L231 Difference]: Finished difference. Result has 118 places, 104 transitions, 525 flow [2023-09-01 04:42:56,014 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=525, PETRI_PLACES=118, PETRI_TRANSITIONS=104} [2023-09-01 04:42:56,015 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 42 predicate places. [2023-09-01 04:42:56,015 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 104 transitions, 525 flow [2023-09-01 04:42:56,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 234.35714285714286) internal successors, (3281), 14 states have internal predecessors, (3281), 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) [2023-09-01 04:42:56,017 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:42:56,017 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:42:56,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-09-01 04:42:56,017 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:42:56,018 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:42:56,018 INFO L85 PathProgramCache]: Analyzing trace with hash -784742058, now seen corresponding path program 1 times [2023-09-01 04:42:56,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:42:56,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282977209] [2023-09-01 04:42:56,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:42:56,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:42:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:42:56,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:42:56,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:42:56,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282977209] [2023-09-01 04:42:56,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282977209] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:42:56,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:42:56,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-09-01 04:42:56,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577684731] [2023-09-01 04:42:56,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:42:56,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-09-01 04:42:56,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:42:56,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-09-01 04:42:56,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-09-01 04:42:57,510 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 558 [2023-09-01 04:42:57,512 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 104 transitions, 525 flow. Second operand has 13 states, 13 states have (on average 238.46153846153845) internal successors, (3100), 13 states have internal predecessors, (3100), 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) [2023-09-01 04:42:57,512 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:42:57,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 558 [2023-09-01 04:42:57,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:43:00,178 INFO L130 PetriNetUnfolder]: 13635/23372 cut-off events. [2023-09-01 04:43:00,179 INFO L131 PetriNetUnfolder]: For 9268/9268 co-relation queries the response was YES. [2023-09-01 04:43:00,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57303 conditions, 23372 events. 13635/23372 cut-off events. For 9268/9268 co-relation queries the response was YES. Maximal size of possible extension queue 613. Compared 166979 event pairs, 4189 based on Foata normal form. 0/18556 useless extension candidates. Maximal degree in co-relation 40566. Up to 5784 conditions per place. [2023-09-01 04:43:00,345 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 363 selfloop transitions, 62 changer transitions 3/435 dead transitions. [2023-09-01 04:43:00,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 435 transitions, 2434 flow [2023-09-01 04:43:00,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-09-01 04:43:00,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-09-01 04:43:00,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4649 transitions. [2023-09-01 04:43:00,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46286340103544404 [2023-09-01 04:43:00,355 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4649 transitions. [2023-09-01 04:43:00,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4649 transitions. [2023-09-01 04:43:00,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:43:00,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4649 transitions. [2023-09-01 04:43:00,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 258.27777777777777) internal successors, (4649), 18 states have internal predecessors, (4649), 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) [2023-09-01 04:43:00,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 558.0) internal successors, (10602), 19 states have internal predecessors, (10602), 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) [2023-09-01 04:43:00,381 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 558.0) internal successors, (10602), 19 states have internal predecessors, (10602), 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) [2023-09-01 04:43:00,382 INFO L175 Difference]: Start difference. First operand has 118 places, 104 transitions, 525 flow. Second operand 18 states and 4649 transitions. [2023-09-01 04:43:00,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 435 transitions, 2434 flow [2023-09-01 04:43:00,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 435 transitions, 2372 flow, removed 18 selfloop flow, removed 6 redundant places. [2023-09-01 04:43:00,408 INFO L231 Difference]: Finished difference. Result has 136 places, 134 transitions, 748 flow [2023-09-01 04:43:00,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=748, PETRI_PLACES=136, PETRI_TRANSITIONS=134} [2023-09-01 04:43:00,409 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 60 predicate places. [2023-09-01 04:43:00,409 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 134 transitions, 748 flow [2023-09-01 04:43:00,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 238.46153846153845) internal successors, (3100), 13 states have internal predecessors, (3100), 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) [2023-09-01 04:43:00,410 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:43:00,411 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] [2023-09-01 04:43:00,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-09-01 04:43:00,411 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:43:00,411 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:43:00,411 INFO L85 PathProgramCache]: Analyzing trace with hash 2011241202, now seen corresponding path program 1 times [2023-09-01 04:43:00,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:43:00,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994043108] [2023-09-01 04:43:00,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:43:00,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:43:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:43:01,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:43:01,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:43:01,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994043108] [2023-09-01 04:43:01,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994043108] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:43:01,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:43:01,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-09-01 04:43:01,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447017530] [2023-09-01 04:43:01,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:43:01,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-09-01 04:43:01,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:43:01,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-09-01 04:43:01,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2023-09-01 04:43:03,928 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 558 [2023-09-01 04:43:03,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 134 transitions, 748 flow. Second operand has 15 states, 15 states have (on average 231.33333333333334) internal successors, (3470), 15 states have internal predecessors, (3470), 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) [2023-09-01 04:43:03,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:43:03,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 558 [2023-09-01 04:43:03,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:43:07,275 INFO L130 PetriNetUnfolder]: 14259/24570 cut-off events. [2023-09-01 04:43:07,276 INFO L131 PetriNetUnfolder]: For 14904/14904 co-relation queries the response was YES. [2023-09-01 04:43:07,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64960 conditions, 24570 events. 14259/24570 cut-off events. For 14904/14904 co-relation queries the response was YES. Maximal size of possible extension queue 609. Compared 176384 event pairs, 9499 based on Foata normal form. 0/20249 useless extension candidates. Maximal degree in co-relation 64802. Up to 21776 conditions per place. [2023-09-01 04:43:07,406 INFO L137 encePairwiseOnDemand]: 542/558 looper letters, 210 selfloop transitions, 42 changer transitions 3/262 dead transitions. [2023-09-01 04:43:07,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 262 transitions, 1860 flow [2023-09-01 04:43:07,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-01 04:43:07,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-09-01 04:43:07,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3626 transitions. [2023-09-01 04:43:07,414 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4332138590203106 [2023-09-01 04:43:07,414 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3626 transitions. [2023-09-01 04:43:07,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3626 transitions. [2023-09-01 04:43:07,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:43:07,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3626 transitions. [2023-09-01 04:43:07,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 241.73333333333332) internal successors, (3626), 15 states have internal predecessors, (3626), 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) [2023-09-01 04:43:07,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 558.0) internal successors, (8928), 16 states have internal predecessors, (8928), 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) [2023-09-01 04:43:07,432 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 558.0) internal successors, (8928), 16 states have internal predecessors, (8928), 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) [2023-09-01 04:43:07,433 INFO L175 Difference]: Start difference. First operand has 136 places, 134 transitions, 748 flow. Second operand 15 states and 3626 transitions. [2023-09-01 04:43:07,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 262 transitions, 1860 flow [2023-09-01 04:43:07,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 262 transitions, 1803 flow, removed 18 selfloop flow, removed 7 redundant places. [2023-09-01 04:43:07,491 INFO L231 Difference]: Finished difference. Result has 154 places, 145 transitions, 936 flow [2023-09-01 04:43:07,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=697, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=936, PETRI_PLACES=154, PETRI_TRANSITIONS=145} [2023-09-01 04:43:07,492 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 78 predicate places. [2023-09-01 04:43:07,492 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 145 transitions, 936 flow [2023-09-01 04:43:07,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 231.33333333333334) internal successors, (3470), 15 states have internal predecessors, (3470), 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) [2023-09-01 04:43:07,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:43:07,493 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] [2023-09-01 04:43:07,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-09-01 04:43:07,494 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:43:07,494 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:43:07,494 INFO L85 PathProgramCache]: Analyzing trace with hash -300438654, now seen corresponding path program 2 times [2023-09-01 04:43:07,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:43:07,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947026975] [2023-09-01 04:43:07,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:43:07,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:43:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:43:08,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:43:08,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:43:08,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947026975] [2023-09-01 04:43:08,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947026975] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:43:08,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:43:08,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-09-01 04:43:08,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577719065] [2023-09-01 04:43:08,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:43:08,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-09-01 04:43:08,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:43:08,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-09-01 04:43:08,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-09-01 04:43:09,913 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 558 [2023-09-01 04:43:09,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 145 transitions, 936 flow. Second operand has 15 states, 15 states have (on average 231.33333333333334) internal successors, (3470), 15 states have internal predecessors, (3470), 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) [2023-09-01 04:43:09,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:43:09,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 558 [2023-09-01 04:43:09,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:43:12,945 INFO L130 PetriNetUnfolder]: 14761/25387 cut-off events. [2023-09-01 04:43:12,945 INFO L131 PetriNetUnfolder]: For 17129/17129 co-relation queries the response was YES. [2023-09-01 04:43:13,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68331 conditions, 25387 events. 14761/25387 cut-off events. For 17129/17129 co-relation queries the response was YES. Maximal size of possible extension queue 608. Compared 182953 event pairs, 7000 based on Foata normal form. 26/21082 useless extension candidates. Maximal degree in co-relation 68167. Up to 20686 conditions per place. [2023-09-01 04:43:13,095 INFO L137 encePairwiseOnDemand]: 542/558 looper letters, 200 selfloop transitions, 53 changer transitions 3/263 dead transitions. [2023-09-01 04:43:13,096 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 263 transitions, 2001 flow [2023-09-01 04:43:13,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-01 04:43:13,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-09-01 04:43:13,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3385 transitions. [2023-09-01 04:43:13,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43330773169482845 [2023-09-01 04:43:13,100 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3385 transitions. [2023-09-01 04:43:13,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3385 transitions. [2023-09-01 04:43:13,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:43:13,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3385 transitions. [2023-09-01 04:43:13,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 241.78571428571428) internal successors, (3385), 14 states have internal predecessors, (3385), 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) [2023-09-01 04:43:13,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 558.0) internal successors, (8370), 15 states have internal predecessors, (8370), 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) [2023-09-01 04:43:13,114 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 558.0) internal successors, (8370), 15 states have internal predecessors, (8370), 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) [2023-09-01 04:43:13,114 INFO L175 Difference]: Start difference. First operand has 154 places, 145 transitions, 936 flow. Second operand 14 states and 3385 transitions. [2023-09-01 04:43:13,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 263 transitions, 2001 flow [2023-09-01 04:43:13,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 263 transitions, 1957 flow, removed 11 selfloop flow, removed 3 redundant places. [2023-09-01 04:43:13,185 INFO L231 Difference]: Finished difference. Result has 170 places, 155 transitions, 1145 flow [2023-09-01 04:43:13,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1145, PETRI_PLACES=170, PETRI_TRANSITIONS=155} [2023-09-01 04:43:13,186 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 94 predicate places. [2023-09-01 04:43:13,186 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 155 transitions, 1145 flow [2023-09-01 04:43:13,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 231.33333333333334) internal successors, (3470), 15 states have internal predecessors, (3470), 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) [2023-09-01 04:43:13,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:43:13,187 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] [2023-09-01 04:43:13,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-09-01 04:43:13,188 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:43:13,189 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:43:13,189 INFO L85 PathProgramCache]: Analyzing trace with hash 808081645, now seen corresponding path program 1 times [2023-09-01 04:43:13,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:43:13,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297718357] [2023-09-01 04:43:13,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:43:13,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:43:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:43:13,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:43:13,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:43:13,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297718357] [2023-09-01 04:43:13,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297718357] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:43:13,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:43:13,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-09-01 04:43:13,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465531127] [2023-09-01 04:43:13,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:43:13,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-09-01 04:43:13,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:43:13,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-09-01 04:43:13,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-09-01 04:43:15,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 558 [2023-09-01 04:43:15,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 155 transitions, 1145 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 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) [2023-09-01 04:43:15,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:43:15,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 558 [2023-09-01 04:43:15,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:43:19,373 INFO L130 PetriNetUnfolder]: 19383/33022 cut-off events. [2023-09-01 04:43:19,373 INFO L131 PetriNetUnfolder]: For 23193/23193 co-relation queries the response was YES. [2023-09-01 04:43:19,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89813 conditions, 33022 events. 19383/33022 cut-off events. For 23193/23193 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 236954 event pairs, 6683 based on Foata normal form. 129/27308 useless extension candidates. Maximal degree in co-relation 89643. Up to 17777 conditions per place. [2023-09-01 04:43:19,599 INFO L137 encePairwiseOnDemand]: 542/558 looper letters, 365 selfloop transitions, 77 changer transitions 0/449 dead transitions. [2023-09-01 04:43:19,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 449 transitions, 2996 flow [2023-09-01 04:43:19,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-01 04:43:19,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-09-01 04:43:19,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3856 transitions. [2023-09-01 04:43:19,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46069295101553165 [2023-09-01 04:43:19,603 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3856 transitions. [2023-09-01 04:43:19,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3856 transitions. [2023-09-01 04:43:19,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:43:19,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3856 transitions. [2023-09-01 04:43:19,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 257.06666666666666) internal successors, (3856), 15 states have internal predecessors, (3856), 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) [2023-09-01 04:43:19,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 558.0) internal successors, (8928), 16 states have internal predecessors, (8928), 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) [2023-09-01 04:43:19,613 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 558.0) internal successors, (8928), 16 states have internal predecessors, (8928), 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) [2023-09-01 04:43:19,613 INFO L175 Difference]: Start difference. First operand has 170 places, 155 transitions, 1145 flow. Second operand 15 states and 3856 transitions. [2023-09-01 04:43:19,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 449 transitions, 2996 flow [2023-09-01 04:43:19,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 449 transitions, 2905 flow, removed 20 selfloop flow, removed 7 redundant places. [2023-09-01 04:43:19,810 INFO L231 Difference]: Finished difference. Result has 182 places, 176 transitions, 1408 flow [2023-09-01 04:43:19,810 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1052, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1408, PETRI_PLACES=182, PETRI_TRANSITIONS=176} [2023-09-01 04:43:19,810 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 106 predicate places. [2023-09-01 04:43:19,810 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 176 transitions, 1408 flow [2023-09-01 04:43:19,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 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) [2023-09-01 04:43:19,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:43:19,811 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] [2023-09-01 04:43:19,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-09-01 04:43:19,812 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:43:19,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:43:19,812 INFO L85 PathProgramCache]: Analyzing trace with hash -643986808, now seen corresponding path program 3 times [2023-09-01 04:43:19,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:43:19,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557714352] [2023-09-01 04:43:19,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:43:19,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:43:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:43:21,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:43:21,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:43:21,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557714352] [2023-09-01 04:43:21,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557714352] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:43:21,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:43:21,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-09-01 04:43:21,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643690645] [2023-09-01 04:43:21,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:43:21,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-09-01 04:43:21,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:43:21,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-09-01 04:43:21,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-09-01 04:43:22,667 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 558 [2023-09-01 04:43:22,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 176 transitions, 1408 flow. Second operand has 15 states, 15 states have (on average 231.33333333333334) internal successors, (3470), 15 states have internal predecessors, (3470), 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) [2023-09-01 04:43:22,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:43:22,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 558 [2023-09-01 04:43:22,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:43:27,239 INFO L130 PetriNetUnfolder]: 19273/33324 cut-off events. [2023-09-01 04:43:27,239 INFO L131 PetriNetUnfolder]: For 29935/29943 co-relation queries the response was YES. [2023-09-01 04:43:27,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93856 conditions, 33324 events. 19273/33324 cut-off events. For 29935/29943 co-relation queries the response was YES. Maximal size of possible extension queue 654. Compared 243832 event pairs, 9045 based on Foata normal form. 26/27645 useless extension candidates. Maximal degree in co-relation 72007. Up to 27264 conditions per place. [2023-09-01 04:43:27,487 INFO L137 encePairwiseOnDemand]: 542/558 looper letters, 233 selfloop transitions, 60 changer transitions 3/303 dead transitions. [2023-09-01 04:43:27,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 303 transitions, 2591 flow [2023-09-01 04:43:27,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-09-01 04:43:27,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-09-01 04:43:27,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3855 transitions. [2023-09-01 04:43:27,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43178763440860213 [2023-09-01 04:43:27,492 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3855 transitions. [2023-09-01 04:43:27,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3855 transitions. [2023-09-01 04:43:27,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:43:27,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3855 transitions. [2023-09-01 04:43:27,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 240.9375) internal successors, (3855), 16 states have internal predecessors, (3855), 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) [2023-09-01 04:43:27,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 558.0) internal successors, (9486), 17 states have internal predecessors, (9486), 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) [2023-09-01 04:43:27,504 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 558.0) internal successors, (9486), 17 states have internal predecessors, (9486), 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) [2023-09-01 04:43:27,505 INFO L175 Difference]: Start difference. First operand has 182 places, 176 transitions, 1408 flow. Second operand 16 states and 3855 transitions. [2023-09-01 04:43:27,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 303 transitions, 2591 flow [2023-09-01 04:43:27,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 303 transitions, 2552 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-09-01 04:43:27,642 INFO L231 Difference]: Finished difference. Result has 195 places, 181 transitions, 1570 flow [2023-09-01 04:43:27,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1369, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1570, PETRI_PLACES=195, PETRI_TRANSITIONS=181} [2023-09-01 04:43:27,643 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 119 predicate places. [2023-09-01 04:43:27,643 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 181 transitions, 1570 flow [2023-09-01 04:43:27,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 231.33333333333334) internal successors, (3470), 15 states have internal predecessors, (3470), 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) [2023-09-01 04:43:27,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:43:27,644 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] [2023-09-01 04:43:27,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-09-01 04:43:27,644 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:43:27,644 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:43:27,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1443120322, now seen corresponding path program 4 times [2023-09-01 04:43:27,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:43:27,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720978857] [2023-09-01 04:43:27,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:43:27,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:43:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:43:28,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:43:28,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:43:28,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720978857] [2023-09-01 04:43:28,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720978857] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:43:28,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:43:28,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-09-01 04:43:28,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406523586] [2023-09-01 04:43:28,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:43:28,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-09-01 04:43:28,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:43:28,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-09-01 04:43:28,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-09-01 04:43:29,710 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 558 [2023-09-01 04:43:29,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 181 transitions, 1570 flow. Second operand has 15 states, 15 states have (on average 231.33333333333334) internal successors, (3470), 15 states have internal predecessors, (3470), 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) [2023-09-01 04:43:29,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:43:29,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 558 [2023-09-01 04:43:29,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:43:34,063 INFO L130 PetriNetUnfolder]: 19269/33468 cut-off events. [2023-09-01 04:43:34,064 INFO L131 PetriNetUnfolder]: For 33297/33301 co-relation queries the response was YES. [2023-09-01 04:43:34,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95462 conditions, 33468 events. 19269/33468 cut-off events. For 33297/33301 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 246273 event pairs, 8974 based on Foata normal form. 26/27783 useless extension candidates. Maximal degree in co-relation 95285. Up to 27036 conditions per place. [2023-09-01 04:43:34,305 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 243 selfloop transitions, 60 changer transitions 3/313 dead transitions. [2023-09-01 04:43:34,305 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 313 transitions, 2762 flow [2023-09-01 04:43:34,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-01 04:43:34,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-09-01 04:43:34,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3633 transitions. [2023-09-01 04:43:34,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43405017921146954 [2023-09-01 04:43:34,308 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3633 transitions. [2023-09-01 04:43:34,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3633 transitions. [2023-09-01 04:43:34,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:43:34,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3633 transitions. [2023-09-01 04:43:34,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 242.2) internal successors, (3633), 15 states have internal predecessors, (3633), 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) [2023-09-01 04:43:34,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 558.0) internal successors, (8928), 16 states have internal predecessors, (8928), 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) [2023-09-01 04:43:34,318 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 558.0) internal successors, (8928), 16 states have internal predecessors, (8928), 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) [2023-09-01 04:43:34,318 INFO L175 Difference]: Start difference. First operand has 195 places, 181 transitions, 1570 flow. Second operand 15 states and 3633 transitions. [2023-09-01 04:43:34,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 313 transitions, 2762 flow [2023-09-01 04:43:34,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 313 transitions, 2664 flow, removed 6 selfloop flow, removed 11 redundant places. [2023-09-01 04:43:34,457 INFO L231 Difference]: Finished difference. Result has 200 places, 185 transitions, 1661 flow [2023-09-01 04:43:34,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1472, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1661, PETRI_PLACES=200, PETRI_TRANSITIONS=185} [2023-09-01 04:43:34,458 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 124 predicate places. [2023-09-01 04:43:34,458 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 185 transitions, 1661 flow [2023-09-01 04:43:34,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 231.33333333333334) internal successors, (3470), 15 states have internal predecessors, (3470), 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) [2023-09-01 04:43:34,459 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:43:34,459 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:43:34,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-09-01 04:43:34,459 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:43:34,460 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:43:34,460 INFO L85 PathProgramCache]: Analyzing trace with hash 452925267, now seen corresponding path program 1 times [2023-09-01 04:43:34,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:43:34,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996884147] [2023-09-01 04:43:34,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:43:34,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:43:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:43:34,496 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-01 04:43:34,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:43:34,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996884147] [2023-09-01 04:43:34,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996884147] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:43:34,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:43:34,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 04:43:34,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858958347] [2023-09-01 04:43:34,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:43:34,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 04:43:34,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:43:34,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 04:43:34,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 04:43:34,509 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 558 [2023-09-01 04:43:34,510 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 185 transitions, 1661 flow. Second operand has 3 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 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) [2023-09-01 04:43:34,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:43:34,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 558 [2023-09-01 04:43:34,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:43:38,050 INFO L130 PetriNetUnfolder]: 17083/29862 cut-off events. [2023-09-01 04:43:38,050 INFO L131 PetriNetUnfolder]: For 38663/38692 co-relation queries the response was YES. [2023-09-01 04:43:38,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87246 conditions, 29862 events. 17083/29862 cut-off events. For 38663/38692 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 216843 event pairs, 6908 based on Foata normal form. 29/25488 useless extension candidates. Maximal degree in co-relation 87067. Up to 21962 conditions per place. [2023-09-01 04:43:38,278 INFO L137 encePairwiseOnDemand]: 553/558 looper letters, 196 selfloop transitions, 4 changer transitions 0/216 dead transitions. [2023-09-01 04:43:38,278 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 216 transitions, 2196 flow [2023-09-01 04:43:38,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 04:43:38,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 04:43:38,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 897 transitions. [2023-09-01 04:43:38,280 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.53584229390681 [2023-09-01 04:43:38,280 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 897 transitions. [2023-09-01 04:43:38,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 897 transitions. [2023-09-01 04:43:38,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:43:38,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 897 transitions. [2023-09-01 04:43:38,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 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) [2023-09-01 04:43:38,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 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) [2023-09-01 04:43:38,282 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 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) [2023-09-01 04:43:38,282 INFO L175 Difference]: Start difference. First operand has 200 places, 185 transitions, 1661 flow. Second operand 3 states and 897 transitions. [2023-09-01 04:43:38,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 216 transitions, 2196 flow [2023-09-01 04:43:38,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 216 transitions, 2126 flow, removed 4 selfloop flow, removed 9 redundant places. [2023-09-01 04:43:38,412 INFO L231 Difference]: Finished difference. Result has 192 places, 184 transitions, 1599 flow [2023-09-01 04:43:38,413 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1583, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1599, PETRI_PLACES=192, PETRI_TRANSITIONS=184} [2023-09-01 04:43:38,413 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 116 predicate places. [2023-09-01 04:43:38,414 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 184 transitions, 1599 flow [2023-09-01 04:43:38,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 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) [2023-09-01 04:43:38,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:43:38,415 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:43:38,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-09-01 04:43:38,415 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:43:38,415 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:43:38,415 INFO L85 PathProgramCache]: Analyzing trace with hash 452925224, now seen corresponding path program 1 times [2023-09-01 04:43:38,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:43:38,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18294893] [2023-09-01 04:43:38,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:43:38,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:43:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:43:38,459 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:43:38,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:43:38,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18294893] [2023-09-01 04:43:38,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18294893] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:43:38,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:43:38,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 04:43:38,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457714217] [2023-09-01 04:43:38,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:43:38,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 04:43:38,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:43:38,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 04:43:38,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 04:43:38,472 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 558 [2023-09-01 04:43:38,473 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 184 transitions, 1599 flow. Second operand has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 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) [2023-09-01 04:43:38,473 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:43:38,473 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 558 [2023-09-01 04:43:38,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:43:41,845 INFO L130 PetriNetUnfolder]: 15334/27056 cut-off events. [2023-09-01 04:43:41,845 INFO L131 PetriNetUnfolder]: For 40379/40408 co-relation queries the response was YES. [2023-09-01 04:43:41,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80574 conditions, 27056 events. 15334/27056 cut-off events. For 40379/40408 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 193803 event pairs, 7635 based on Foata normal form. 1052/24495 useless extension candidates. Maximal degree in co-relation 80395. Up to 23339 conditions per place. [2023-09-01 04:43:42,075 INFO L137 encePairwiseOnDemand]: 555/558 looper letters, 174 selfloop transitions, 1 changer transitions 0/191 dead transitions. [2023-09-01 04:43:42,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 191 transitions, 1989 flow [2023-09-01 04:43:42,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 04:43:42,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 04:43:42,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 881 transitions. [2023-09-01 04:43:42,076 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.526284348864994 [2023-09-01 04:43:42,077 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 881 transitions. [2023-09-01 04:43:42,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 881 transitions. [2023-09-01 04:43:42,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:43:42,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 881 transitions. [2023-09-01 04:43:42,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 293.6666666666667) internal successors, (881), 3 states have internal predecessors, (881), 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) [2023-09-01 04:43:42,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 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) [2023-09-01 04:43:42,079 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 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) [2023-09-01 04:43:42,079 INFO L175 Difference]: Start difference. First operand has 192 places, 184 transitions, 1599 flow. Second operand 3 states and 881 transitions. [2023-09-01 04:43:42,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 191 transitions, 1989 flow [2023-09-01 04:43:42,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 191 transitions, 1985 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 04:43:42,207 INFO L231 Difference]: Finished difference. Result has 191 places, 182 transitions, 1589 flow [2023-09-01 04:43:42,207 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1587, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1589, PETRI_PLACES=191, PETRI_TRANSITIONS=182} [2023-09-01 04:43:42,208 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 115 predicate places. [2023-09-01 04:43:42,208 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 182 transitions, 1589 flow [2023-09-01 04:43:42,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 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) [2023-09-01 04:43:42,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:43:42,208 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, 1] [2023-09-01 04:43:42,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-09-01 04:43:42,209 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:43:42,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:43:42,209 INFO L85 PathProgramCache]: Analyzing trace with hash -742070961, now seen corresponding path program 1 times [2023-09-01 04:43:42,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:43:42,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451392819] [2023-09-01 04:43:42,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:43:42,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:43:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:43:42,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:43:42,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:43:42,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451392819] [2023-09-01 04:43:42,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451392819] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:43:42,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:43:42,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 04:43:42,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128264277] [2023-09-01 04:43:42,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:43:42,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 04:43:42,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:43:42,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 04:43:42,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-09-01 04:43:43,433 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 558 [2023-09-01 04:43:43,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 182 transitions, 1589 flow. Second operand has 12 states, 12 states have (on average 236.83333333333334) internal successors, (2842), 12 states have internal predecessors, (2842), 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) [2023-09-01 04:43:43,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:43:43,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 558 [2023-09-01 04:43:43,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:43:49,759 INFO L130 PetriNetUnfolder]: 24546/42781 cut-off events. [2023-09-01 04:43:49,760 INFO L131 PetriNetUnfolder]: For 48141/48149 co-relation queries the response was YES. [2023-09-01 04:43:50,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124636 conditions, 42781 events. 24546/42781 cut-off events. For 48141/48149 co-relation queries the response was YES. Maximal size of possible extension queue 831. Compared 326680 event pairs, 6614 based on Foata normal form. 0/37559 useless extension candidates. Maximal degree in co-relation 124456. Up to 9046 conditions per place. [2023-09-01 04:43:50,151 INFO L137 encePairwiseOnDemand]: 537/558 looper letters, 388 selfloop transitions, 122 changer transitions 3/520 dead transitions. [2023-09-01 04:43:50,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 520 transitions, 4018 flow [2023-09-01 04:43:50,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-09-01 04:43:50,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-09-01 04:43:50,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4586 transitions. [2023-09-01 04:43:50,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4565909996017523 [2023-09-01 04:43:50,156 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4586 transitions. [2023-09-01 04:43:50,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4586 transitions. [2023-09-01 04:43:50,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:43:50,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4586 transitions. [2023-09-01 04:43:50,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 254.77777777777777) internal successors, (4586), 18 states have internal predecessors, (4586), 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) [2023-09-01 04:43:50,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 558.0) internal successors, (10602), 19 states have internal predecessors, (10602), 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) [2023-09-01 04:43:50,168 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 558.0) internal successors, (10602), 19 states have internal predecessors, (10602), 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) [2023-09-01 04:43:50,168 INFO L175 Difference]: Start difference. First operand has 191 places, 182 transitions, 1589 flow. Second operand 18 states and 4586 transitions. [2023-09-01 04:43:50,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 520 transitions, 4018 flow [2023-09-01 04:43:50,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 520 transitions, 4015 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 04:43:50,432 INFO L231 Difference]: Finished difference. Result has 213 places, 236 transitions, 2443 flow [2023-09-01 04:43:50,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1588, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2443, PETRI_PLACES=213, PETRI_TRANSITIONS=236} [2023-09-01 04:43:50,432 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 137 predicate places. [2023-09-01 04:43:50,433 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 236 transitions, 2443 flow [2023-09-01 04:43:50,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 236.83333333333334) internal successors, (2842), 12 states have internal predecessors, (2842), 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) [2023-09-01 04:43:50,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:43:50,433 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, 1] [2023-09-01 04:43:50,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-09-01 04:43:50,433 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:43:50,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:43:50,434 INFO L85 PathProgramCache]: Analyzing trace with hash -742070962, now seen corresponding path program 1 times [2023-09-01 04:43:50,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:43:50,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921670305] [2023-09-01 04:43:50,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:43:50,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:43:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:43:51,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:43:51,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:43:51,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921670305] [2023-09-01 04:43:51,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921670305] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:43:51,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:43:51,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 04:43:51,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909897047] [2023-09-01 04:43:51,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:43:51,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 04:43:51,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:43:51,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 04:43:51,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-09-01 04:43:51,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 558 [2023-09-01 04:43:51,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 236 transitions, 2443 flow. Second operand has 12 states, 12 states have (on average 238.83333333333334) internal successors, (2866), 12 states have internal predecessors, (2866), 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) [2023-09-01 04:43:51,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:43:51,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 558 [2023-09-01 04:43:51,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:43:58,113 INFO L130 PetriNetUnfolder]: 25311/44168 cut-off events. [2023-09-01 04:43:58,113 INFO L131 PetriNetUnfolder]: For 82349/82349 co-relation queries the response was YES. [2023-09-01 04:43:58,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141566 conditions, 44168 events. 25311/44168 cut-off events. For 82349/82349 co-relation queries the response was YES. Maximal size of possible extension queue 823. Compared 339537 event pairs, 19648 based on Foata normal form. 26/39619 useless extension candidates. Maximal degree in co-relation 141377. Up to 39569 conditions per place. [2023-09-01 04:43:58,590 INFO L137 encePairwiseOnDemand]: 545/558 looper letters, 268 selfloop transitions, 32 changer transitions 3/310 dead transitions. [2023-09-01 04:43:58,590 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 310 transitions, 3495 flow [2023-09-01 04:43:58,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 04:43:58,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 04:43:58,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2976 transitions. [2023-09-01 04:43:58,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2023-09-01 04:43:58,594 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2976 transitions. [2023-09-01 04:43:58,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2976 transitions. [2023-09-01 04:43:58,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:43:58,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2976 transitions. [2023-09-01 04:43:58,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 248.0) internal successors, (2976), 12 states have internal predecessors, (2976), 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) [2023-09-01 04:43:58,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 558.0) internal successors, (7254), 13 states have internal predecessors, (7254), 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) [2023-09-01 04:43:58,603 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 558.0) internal successors, (7254), 13 states have internal predecessors, (7254), 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) [2023-09-01 04:43:58,603 INFO L175 Difference]: Start difference. First operand has 213 places, 236 transitions, 2443 flow. Second operand 12 states and 2976 transitions. [2023-09-01 04:43:58,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 310 transitions, 3495 flow [2023-09-01 04:43:58,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 310 transitions, 3416 flow, removed 20 selfloop flow, removed 10 redundant places. [2023-09-01 04:43:58,947 INFO L231 Difference]: Finished difference. Result has 220 places, 245 transitions, 2599 flow [2023-09-01 04:43:58,948 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2374, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2599, PETRI_PLACES=220, PETRI_TRANSITIONS=245} [2023-09-01 04:43:58,948 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 144 predicate places. [2023-09-01 04:43:58,948 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 245 transitions, 2599 flow [2023-09-01 04:43:58,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 238.83333333333334) internal successors, (2866), 12 states have internal predecessors, (2866), 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) [2023-09-01 04:43:58,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:43:58,949 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, 1, 1] [2023-09-01 04:43:58,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-09-01 04:43:58,949 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:43:58,949 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:43:58,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1314933643, now seen corresponding path program 1 times [2023-09-01 04:43:58,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:43:58,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030117773] [2023-09-01 04:43:58,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:43:58,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:43:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:44:00,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:44:00,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:44:00,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030117773] [2023-09-01 04:44:00,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030117773] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:44:00,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:44:00,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-09-01 04:44:00,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015897949] [2023-09-01 04:44:00,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:44:00,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-09-01 04:44:00,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:44:00,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-09-01 04:44:00,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-09-01 04:44:00,929 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 558 [2023-09-01 04:44:00,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 245 transitions, 2599 flow. Second operand has 13 states, 13 states have (on average 239.76923076923077) internal successors, (3117), 13 states have internal predecessors, (3117), 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) [2023-09-01 04:44:00,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:44:00,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 558 [2023-09-01 04:44:00,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:44:07,177 INFO L130 PetriNetUnfolder]: 25035/43768 cut-off events. [2023-09-01 04:44:07,178 INFO L131 PetriNetUnfolder]: For 79456/79456 co-relation queries the response was YES. [2023-09-01 04:44:07,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140334 conditions, 43768 events. 25035/43768 cut-off events. For 79456/79456 co-relation queries the response was YES. Maximal size of possible extension queue 813. Compared 335428 event pairs, 15850 based on Foata normal form. 104/39658 useless extension candidates. Maximal degree in co-relation 121844. Up to 36100 conditions per place. [2023-09-01 04:44:07,715 INFO L137 encePairwiseOnDemand]: 545/558 looper letters, 275 selfloop transitions, 47 changer transitions 3/332 dead transitions. [2023-09-01 04:44:07,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 332 transitions, 3661 flow [2023-09-01 04:44:07,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 04:44:07,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 04:44:07,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2759 transitions. [2023-09-01 04:44:07,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4494949494949495 [2023-09-01 04:44:07,718 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2759 transitions. [2023-09-01 04:44:07,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2759 transitions. [2023-09-01 04:44:07,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:44:07,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2759 transitions. [2023-09-01 04:44:07,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 250.8181818181818) internal successors, (2759), 11 states have internal predecessors, (2759), 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) [2023-09-01 04:44:07,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 558.0) internal successors, (6696), 12 states have internal predecessors, (6696), 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) [2023-09-01 04:44:07,727 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 558.0) internal successors, (6696), 12 states have internal predecessors, (6696), 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) [2023-09-01 04:44:07,728 INFO L175 Difference]: Start difference. First operand has 220 places, 245 transitions, 2599 flow. Second operand 11 states and 2759 transitions. [2023-09-01 04:44:07,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 332 transitions, 3661 flow [2023-09-01 04:44:08,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 332 transitions, 3617 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-09-01 04:44:08,356 INFO L231 Difference]: Finished difference. Result has 226 places, 246 transitions, 2677 flow [2023-09-01 04:44:08,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2557, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2677, PETRI_PLACES=226, PETRI_TRANSITIONS=246} [2023-09-01 04:44:08,357 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 150 predicate places. [2023-09-01 04:44:08,357 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 246 transitions, 2677 flow [2023-09-01 04:44:08,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 239.76923076923077) internal successors, (3117), 13 states have internal predecessors, (3117), 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) [2023-09-01 04:44:08,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:44:08,357 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, 1, 1] [2023-09-01 04:44:08,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-09-01 04:44:08,357 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:44:08,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:44:08,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1031241843, now seen corresponding path program 2 times [2023-09-01 04:44:08,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:44:08,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155531131] [2023-09-01 04:44:08,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:44:08,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:44:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:44:09,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:44:09,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:44:09,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155531131] [2023-09-01 04:44:09,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155531131] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:44:09,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:44:09,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-09-01 04:44:09,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844105101] [2023-09-01 04:44:09,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:44:09,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-09-01 04:44:09,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:44:09,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-09-01 04:44:09,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-09-01 04:44:10,556 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 558 [2023-09-01 04:44:10,558 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 246 transitions, 2677 flow. Second operand has 13 states, 13 states have (on average 235.76923076923077) internal successors, (3065), 13 states have internal predecessors, (3065), 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) [2023-09-01 04:44:10,558 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:44:10,558 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 558 [2023-09-01 04:44:10,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:44:17,491 INFO L130 PetriNetUnfolder]: 26285/45887 cut-off events. [2023-09-01 04:44:17,492 INFO L131 PetriNetUnfolder]: For 86660/86664 co-relation queries the response was YES. [2023-09-01 04:44:17,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147883 conditions, 45887 events. 26285/45887 cut-off events. For 86660/86664 co-relation queries the response was YES. Maximal size of possible extension queue 832. Compared 354074 event pairs, 10939 based on Foata normal form. 63/41632 useless extension candidates. Maximal degree in co-relation 129045. Up to 35194 conditions per place. [2023-09-01 04:44:18,021 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 317 selfloop transitions, 65 changer transitions 0/389 dead transitions. [2023-09-01 04:44:18,022 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 389 transitions, 4139 flow [2023-09-01 04:44:18,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-01 04:44:18,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-09-01 04:44:18,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3227 transitions. [2023-09-01 04:44:18,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4448580093741384 [2023-09-01 04:44:18,025 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3227 transitions. [2023-09-01 04:44:18,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3227 transitions. [2023-09-01 04:44:18,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:44:18,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3227 transitions. [2023-09-01 04:44:18,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 248.23076923076923) internal successors, (3227), 13 states have internal predecessors, (3227), 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) [2023-09-01 04:44:18,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 558.0) internal successors, (7812), 14 states have internal predecessors, (7812), 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) [2023-09-01 04:44:18,037 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 558.0) internal successors, (7812), 14 states have internal predecessors, (7812), 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) [2023-09-01 04:44:18,037 INFO L175 Difference]: Start difference. First operand has 226 places, 246 transitions, 2677 flow. Second operand 13 states and 3227 transitions. [2023-09-01 04:44:18,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 389 transitions, 4139 flow [2023-09-01 04:44:18,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 389 transitions, 4056 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-09-01 04:44:18,437 INFO L231 Difference]: Finished difference. Result has 232 places, 258 transitions, 2904 flow [2023-09-01 04:44:18,438 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2594, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2904, PETRI_PLACES=232, PETRI_TRANSITIONS=258} [2023-09-01 04:44:18,438 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 156 predicate places. [2023-09-01 04:44:18,438 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 258 transitions, 2904 flow [2023-09-01 04:44:18,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 235.76923076923077) internal successors, (3065), 13 states have internal predecessors, (3065), 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) [2023-09-01 04:44:18,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:44:18,439 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, 1, 1] [2023-09-01 04:44:18,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-09-01 04:44:18,439 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting t1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:44:18,439 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:44:18,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1031241844, now seen corresponding path program 1 times [2023-09-01 04:44:18,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:44:18,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021290417] [2023-09-01 04:44:18,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:44:18,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:44:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:44:18,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:44:18,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:44:18,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021290417] [2023-09-01 04:44:18,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021290417] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:44:18,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:44:18,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-09-01 04:44:18,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351226006] [2023-09-01 04:44:18,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:44:18,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-09-01 04:44:18,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:44:18,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-09-01 04:44:18,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-09-01 04:44:19,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 558 [2023-09-01 04:44:19,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 258 transitions, 2904 flow. Second operand has 13 states, 13 states have (on average 233.76923076923077) internal successors, (3039), 13 states have internal predecessors, (3039), 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) [2023-09-01 04:44:19,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:44:19,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 558 [2023-09-01 04:44:19,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:44:27,266 INFO L130 PetriNetUnfolder]: 26033/45197 cut-off events. [2023-09-01 04:44:27,266 INFO L131 PetriNetUnfolder]: For 100439/100443 co-relation queries the response was YES. [2023-09-01 04:44:27,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150250 conditions, 45197 events. 26033/45197 cut-off events. For 100439/100443 co-relation queries the response was YES. Maximal size of possible extension queue 814. Compared 345992 event pairs, 10862 based on Foata normal form. 234/41642 useless extension candidates. Maximal degree in co-relation 131256. Up to 24459 conditions per place. [2023-09-01 04:44:27,826 INFO L137 encePairwiseOnDemand]: 538/558 looper letters, 361 selfloop transitions, 141 changer transitions 0/509 dead transitions. [2023-09-01 04:44:27,827 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 509 transitions, 4833 flow [2023-09-01 04:44:27,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-01 04:44:27,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-09-01 04:44:27,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3790 transitions. [2023-09-01 04:44:27,830 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45280764635603343 [2023-09-01 04:44:27,830 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3790 transitions. [2023-09-01 04:44:27,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3790 transitions. [2023-09-01 04:44:27,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:44:27,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3790 transitions. [2023-09-01 04:44:27,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 252.66666666666666) internal successors, (3790), 15 states have internal predecessors, (3790), 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) [2023-09-01 04:44:27,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 558.0) internal successors, (8928), 16 states have internal predecessors, (8928), 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) [2023-09-01 04:44:27,840 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 558.0) internal successors, (8928), 16 states have internal predecessors, (8928), 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) [2023-09-01 04:44:27,840 INFO L175 Difference]: Start difference. First operand has 232 places, 258 transitions, 2904 flow. Second operand 15 states and 3790 transitions. [2023-09-01 04:44:27,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 509 transitions, 4833 flow [2023-09-01 04:44:28,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 509 transitions, 4766 flow, removed 5 selfloop flow, removed 8 redundant places. [2023-09-01 04:44:28,287 INFO L231 Difference]: Finished difference. Result has 241 places, 270 transitions, 3331 flow [2023-09-01 04:44:28,287 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2837, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3331, PETRI_PLACES=241, PETRI_TRANSITIONS=270} [2023-09-01 04:44:28,288 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 165 predicate places. [2023-09-01 04:44:28,288 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 270 transitions, 3331 flow [2023-09-01 04:44:28,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 233.76923076923077) internal successors, (3039), 13 states have internal predecessors, (3039), 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) [2023-09-01 04:44:28,288 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:44:28,289 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, 1, 1] [2023-09-01 04:44:28,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-09-01 04:44:28,289 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:44:28,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:44:28,289 INFO L85 PathProgramCache]: Analyzing trace with hash -624278245, now seen corresponding path program 3 times [2023-09-01 04:44:28,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:44:28,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040075466] [2023-09-01 04:44:28,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:44:28,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:44:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:44:29,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:44:29,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:44:29,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040075466] [2023-09-01 04:44:29,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040075466] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:44:29,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:44:29,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-09-01 04:44:29,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932469947] [2023-09-01 04:44:29,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:44:29,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-09-01 04:44:29,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:44:29,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-09-01 04:44:29,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-09-01 04:44:30,818 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 558 [2023-09-01 04:44:30,819 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 270 transitions, 3331 flow. Second operand has 13 states, 13 states have (on average 239.76923076923077) internal successors, (3117), 13 states have internal predecessors, (3117), 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) [2023-09-01 04:44:30,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:44:30,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 558 [2023-09-01 04:44:30,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:44:38,246 INFO L130 PetriNetUnfolder]: 26067/45588 cut-off events. [2023-09-01 04:44:38,247 INFO L131 PetriNetUnfolder]: For 129353/129365 co-relation queries the response was YES. [2023-09-01 04:44:38,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158852 conditions, 45588 events. 26067/45588 cut-off events. For 129353/129365 co-relation queries the response was YES. Maximal size of possible extension queue 819. Compared 351799 event pairs, 10545 based on Foata normal form. 52/41922 useless extension candidates. Maximal degree in co-relation 138773. Up to 34592 conditions per place. [2023-09-01 04:44:39,181 INFO L137 encePairwiseOnDemand]: 541/558 looper letters, 329 selfloop transitions, 63 changer transitions 0/399 dead transitions. [2023-09-01 04:44:39,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 399 transitions, 4722 flow [2023-09-01 04:44:39,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-01 04:44:39,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-09-01 04:44:39,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3275 transitions. [2023-09-01 04:44:39,186 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4514750482492418 [2023-09-01 04:44:39,186 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3275 transitions. [2023-09-01 04:44:39,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3275 transitions. [2023-09-01 04:44:39,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:44:39,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3275 transitions. [2023-09-01 04:44:39,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 251.92307692307693) internal successors, (3275), 13 states have internal predecessors, (3275), 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) [2023-09-01 04:44:39,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 558.0) internal successors, (7812), 14 states have internal predecessors, (7812), 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) [2023-09-01 04:44:39,195 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 558.0) internal successors, (7812), 14 states have internal predecessors, (7812), 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) [2023-09-01 04:44:39,195 INFO L175 Difference]: Start difference. First operand has 241 places, 270 transitions, 3331 flow. Second operand 13 states and 3275 transitions. [2023-09-01 04:44:39,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 399 transitions, 4722 flow [2023-09-01 04:44:40,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 399 transitions, 4612 flow, removed 9 selfloop flow, removed 6 redundant places. [2023-09-01 04:44:40,011 INFO L231 Difference]: Finished difference. Result has 248 places, 271 transitions, 3384 flow [2023-09-01 04:44:40,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=3222, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3384, PETRI_PLACES=248, PETRI_TRANSITIONS=271} [2023-09-01 04:44:40,012 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 172 predicate places. [2023-09-01 04:44:40,012 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 271 transitions, 3384 flow [2023-09-01 04:44:40,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 239.76923076923077) internal successors, (3117), 13 states have internal predecessors, (3117), 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) [2023-09-01 04:44:40,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:44:40,012 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, 1, 1] [2023-09-01 04:44:40,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-09-01 04:44:40,013 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:44:40,013 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:44:40,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1529360933, now seen corresponding path program 4 times [2023-09-01 04:44:40,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:44:40,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763694343] [2023-09-01 04:44:40,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:44:40,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:44:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:44:40,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:44:40,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:44:40,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763694343] [2023-09-01 04:44:40,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763694343] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:44:40,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:44:40,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-09-01 04:44:40,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267990603] [2023-09-01 04:44:40,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:44:40,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-09-01 04:44:40,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:44:40,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-09-01 04:44:40,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-09-01 04:44:42,263 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 558 [2023-09-01 04:44:42,264 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 271 transitions, 3384 flow. Second operand has 13 states, 13 states have (on average 240.76923076923077) internal successors, (3130), 13 states have internal predecessors, (3130), 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) [2023-09-01 04:44:42,264 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:44:42,264 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 558 [2023-09-01 04:44:42,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:44:49,313 INFO L130 PetriNetUnfolder]: 25012/43890 cut-off events. [2023-09-01 04:44:49,313 INFO L131 PetriNetUnfolder]: For 122465/122465 co-relation queries the response was YES. [2023-09-01 04:44:49,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151734 conditions, 43890 events. 25012/43890 cut-off events. For 122465/122465 co-relation queries the response was YES. Maximal size of possible extension queue 814. Compared 336538 event pairs, 11293 based on Foata normal form. 104/40276 useless extension candidates. Maximal degree in co-relation 122570. Up to 34234 conditions per place. [2023-09-01 04:44:49,859 INFO L137 encePairwiseOnDemand]: 545/558 looper letters, 297 selfloop transitions, 51 changer transitions 3/358 dead transitions. [2023-09-01 04:44:49,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 358 transitions, 4441 flow [2023-09-01 04:44:49,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 04:44:49,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 04:44:49,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3012 transitions. [2023-09-01 04:44:49,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.449820788530466 [2023-09-01 04:44:49,862 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3012 transitions. [2023-09-01 04:44:49,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3012 transitions. [2023-09-01 04:44:49,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:44:49,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3012 transitions. [2023-09-01 04:44:49,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 251.0) internal successors, (3012), 12 states have internal predecessors, (3012), 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) [2023-09-01 04:44:49,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 558.0) internal successors, (7254), 13 states have internal predecessors, (7254), 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) [2023-09-01 04:44:49,868 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 558.0) internal successors, (7254), 13 states have internal predecessors, (7254), 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) [2023-09-01 04:44:49,868 INFO L175 Difference]: Start difference. First operand has 248 places, 271 transitions, 3384 flow. Second operand 12 states and 3012 transitions. [2023-09-01 04:44:49,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 358 transitions, 4441 flow [2023-09-01 04:44:50,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 358 transitions, 4327 flow, removed 4 selfloop flow, removed 12 redundant places. [2023-09-01 04:44:50,649 INFO L231 Difference]: Finished difference. Result has 248 places, 265 transitions, 3304 flow [2023-09-01 04:44:50,650 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=3167, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3304, PETRI_PLACES=248, PETRI_TRANSITIONS=265} [2023-09-01 04:44:50,650 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 172 predicate places. [2023-09-01 04:44:50,650 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 265 transitions, 3304 flow [2023-09-01 04:44:50,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 240.76923076923077) internal successors, (3130), 13 states have internal predecessors, (3130), 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) [2023-09-01 04:44:50,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:44:50,651 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:44:50,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-09-01 04:44:50,651 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:44:50,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:44:50,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1649093189, now seen corresponding path program 1 times [2023-09-01 04:44:50,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:44:50,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778793092] [2023-09-01 04:44:50,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:44:50,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:44:50,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:44:50,712 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:44:50,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:44:50,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778793092] [2023-09-01 04:44:50,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778793092] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:44:50,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:44:50,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 04:44:50,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788739171] [2023-09-01 04:44:50,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:44:50,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 04:44:50,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:44:50,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 04:44:50,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 04:44:50,719 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 558 [2023-09-01 04:44:50,720 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 265 transitions, 3304 flow. Second operand has 3 states, 3 states have (on average 282.3333333333333) internal successors, (847), 3 states have internal predecessors, (847), 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) [2023-09-01 04:44:50,720 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:44:50,720 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 558 [2023-09-01 04:44:50,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:44:53,435 INFO L130 PetriNetUnfolder]: 10486/18589 cut-off events. [2023-09-01 04:44:53,436 INFO L131 PetriNetUnfolder]: For 63631/63704 co-relation queries the response was YES. [2023-09-01 04:44:53,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65502 conditions, 18589 events. 10486/18589 cut-off events. For 63631/63704 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 121759 event pairs, 6200 based on Foata normal form. 657/18259 useless extension candidates. Maximal degree in co-relation 58218. Up to 9326 conditions per place. [2023-09-01 04:44:53,611 INFO L137 encePairwiseOnDemand]: 555/558 looper letters, 205 selfloop transitions, 2 changer transitions 1/221 dead transitions. [2023-09-01 04:44:53,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 221 transitions, 3073 flow [2023-09-01 04:44:53,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 04:44:53,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 04:44:53,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 891 transitions. [2023-09-01 04:44:53,612 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.532258064516129 [2023-09-01 04:44:53,613 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 891 transitions. [2023-09-01 04:44:53,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 891 transitions. [2023-09-01 04:44:53,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:44:53,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 891 transitions. [2023-09-01 04:44:53,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 297.0) internal successors, (891), 3 states have internal predecessors, (891), 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) [2023-09-01 04:44:53,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 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) [2023-09-01 04:44:53,614 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 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) [2023-09-01 04:44:53,615 INFO L175 Difference]: Start difference. First operand has 248 places, 265 transitions, 3304 flow. Second operand 3 states and 891 transitions. [2023-09-01 04:44:53,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 221 transitions, 3073 flow [2023-09-01 04:44:54,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 221 transitions, 2911 flow, removed 8 selfloop flow, removed 16 redundant places. [2023-09-01 04:44:54,120 INFO L231 Difference]: Finished difference. Result has 234 places, 205 transitions, 2436 flow [2023-09-01 04:44:54,120 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2420, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2436, PETRI_PLACES=234, PETRI_TRANSITIONS=205} [2023-09-01 04:44:54,121 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 158 predicate places. [2023-09-01 04:44:54,121 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 205 transitions, 2436 flow [2023-09-01 04:44:54,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.3333333333333) internal successors, (847), 3 states have internal predecessors, (847), 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) [2023-09-01 04:44:54,122 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:44:54,122 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:44:54,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-09-01 04:44:54,122 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:44:54,122 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:44:54,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1137275059, now seen corresponding path program 1 times [2023-09-01 04:44:54,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:44:54,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101245599] [2023-09-01 04:44:54,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:44:54,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:44:54,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:44:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:44:54,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:44:54,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101245599] [2023-09-01 04:44:54,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101245599] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:44:54,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:44:54,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 04:44:54,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94247992] [2023-09-01 04:44:54,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:44:54,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 04:44:54,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:44:54,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 04:44:54,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 04:44:54,191 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 558 [2023-09-01 04:44:54,192 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 205 transitions, 2436 flow. Second operand has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 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) [2023-09-01 04:44:54,192 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:44:54,192 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 558 [2023-09-01 04:44:54,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:44:56,113 INFO L130 PetriNetUnfolder]: 8129/15289 cut-off events. [2023-09-01 04:44:56,113 INFO L131 PetriNetUnfolder]: For 42283/42298 co-relation queries the response was YES. [2023-09-01 04:44:56,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52767 conditions, 15289 events. 8129/15289 cut-off events. For 42283/42298 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 99515 event pairs, 1784 based on Foata normal form. 1337/15865 useless extension candidates. Maximal degree in co-relation 46331. Up to 11200 conditions per place. [2023-09-01 04:44:56,239 INFO L137 encePairwiseOnDemand]: 552/558 looper letters, 196 selfloop transitions, 9 changer transitions 0/218 dead transitions. [2023-09-01 04:44:56,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 218 transitions, 2923 flow [2023-09-01 04:44:56,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 04:44:56,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 04:44:56,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 881 transitions. [2023-09-01 04:44:56,241 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.526284348864994 [2023-09-01 04:44:56,241 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 881 transitions. [2023-09-01 04:44:56,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 881 transitions. [2023-09-01 04:44:56,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:44:56,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 881 transitions. [2023-09-01 04:44:56,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 293.6666666666667) internal successors, (881), 3 states have internal predecessors, (881), 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) [2023-09-01 04:44:56,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 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) [2023-09-01 04:44:56,244 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 558.0) internal successors, (2232), 4 states have internal predecessors, (2232), 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) [2023-09-01 04:44:56,244 INFO L175 Difference]: Start difference. First operand has 234 places, 205 transitions, 2436 flow. Second operand 3 states and 881 transitions. [2023-09-01 04:44:56,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 218 transitions, 2923 flow [2023-09-01 04:44:56,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 218 transitions, 2919 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 04:44:56,446 INFO L231 Difference]: Finished difference. Result has 234 places, 205 transitions, 2450 flow [2023-09-01 04:44:56,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2432, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2450, PETRI_PLACES=234, PETRI_TRANSITIONS=205} [2023-09-01 04:44:56,446 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 158 predicate places. [2023-09-01 04:44:56,447 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 205 transitions, 2450 flow [2023-09-01 04:44:56,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 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) [2023-09-01 04:44:56,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:44:56,447 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:44:56,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-09-01 04:44:56,447 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:44:56,447 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:44:56,448 INFO L85 PathProgramCache]: Analyzing trace with hash -635526647, now seen corresponding path program 1 times [2023-09-01 04:44:56,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:44:56,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738332019] [2023-09-01 04:44:56,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:44:56,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:44:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:44:56,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:44:56,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:44:56,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738332019] [2023-09-01 04:44:56,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738332019] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:44:56,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:44:56,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-09-01 04:44:56,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734356960] [2023-09-01 04:44:56,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:44:56,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-01 04:44:56,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:44:56,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-01 04:44:56,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-09-01 04:44:57,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 558 [2023-09-01 04:44:57,359 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 205 transitions, 2450 flow. Second operand has 9 states, 9 states have (on average 250.55555555555554) internal successors, (2255), 9 states have internal predecessors, (2255), 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) [2023-09-01 04:44:57,359 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:44:57,359 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 558 [2023-09-01 04:44:57,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:44:59,482 INFO L130 PetriNetUnfolder]: 7796/14857 cut-off events. [2023-09-01 04:44:59,483 INFO L131 PetriNetUnfolder]: For 41153/41222 co-relation queries the response was YES. [2023-09-01 04:44:59,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52754 conditions, 14857 events. 7796/14857 cut-off events. For 41153/41222 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 98207 event pairs, 1943 based on Foata normal form. 23/14190 useless extension candidates. Maximal degree in co-relation 46618. Up to 4394 conditions per place. [2023-09-01 04:44:59,606 INFO L137 encePairwiseOnDemand]: 543/558 looper letters, 207 selfloop transitions, 62 changer transitions 1/276 dead transitions. [2023-09-01 04:44:59,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 276 transitions, 3326 flow [2023-09-01 04:44:59,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 04:44:59,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 04:44:59,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2358 transitions. [2023-09-01 04:44:59,609 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46953405017921146 [2023-09-01 04:44:59,609 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2358 transitions. [2023-09-01 04:44:59,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2358 transitions. [2023-09-01 04:44:59,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:44:59,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2358 transitions. [2023-09-01 04:44:59,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 262.0) internal successors, (2358), 9 states have internal predecessors, (2358), 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) [2023-09-01 04:44:59,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 558.0) internal successors, (5580), 10 states have internal predecessors, (5580), 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) [2023-09-01 04:44:59,613 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 558.0) internal successors, (5580), 10 states have internal predecessors, (5580), 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) [2023-09-01 04:44:59,613 INFO L175 Difference]: Start difference. First operand has 234 places, 205 transitions, 2450 flow. Second operand 9 states and 2358 transitions. [2023-09-01 04:44:59,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 276 transitions, 3326 flow [2023-09-01 04:44:59,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 276 transitions, 3308 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 04:44:59,799 INFO L231 Difference]: Finished difference. Result has 244 places, 209 transitions, 2644 flow [2023-09-01 04:44:59,799 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2441, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2644, PETRI_PLACES=244, PETRI_TRANSITIONS=209} [2023-09-01 04:44:59,800 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 168 predicate places. [2023-09-01 04:44:59,800 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 209 transitions, 2644 flow [2023-09-01 04:44:59,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 250.55555555555554) internal successors, (2255), 9 states have internal predecessors, (2255), 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) [2023-09-01 04:44:59,800 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:44:59,800 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:44:59,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-09-01 04:44:59,801 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:44:59,801 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:44:59,801 INFO L85 PathProgramCache]: Analyzing trace with hash -420185818, now seen corresponding path program 1 times [2023-09-01 04:44:59,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:44:59,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447080367] [2023-09-01 04:44:59,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:44:59,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:44:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:45:00,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:45:00,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:45:00,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447080367] [2023-09-01 04:45:00,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447080367] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:45:00,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:45:00,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-09-01 04:45:00,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494032287] [2023-09-01 04:45:00,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:45:00,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-09-01 04:45:00,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:45:00,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-09-01 04:45:00,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-09-01 04:45:01,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 558 [2023-09-01 04:45:01,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 209 transitions, 2644 flow. Second operand has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 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) [2023-09-01 04:45:01,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:45:01,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 558 [2023-09-01 04:45:01,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:45:04,778 INFO L130 PetriNetUnfolder]: 8274/15821 cut-off events. [2023-09-01 04:45:04,778 INFO L131 PetriNetUnfolder]: For 47160/47211 co-relation queries the response was YES. [2023-09-01 04:45:04,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56473 conditions, 15821 events. 8274/15821 cut-off events. For 47160/47211 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 106989 event pairs, 2519 based on Foata normal form. 17/15267 useless extension candidates. Maximal degree in co-relation 55246. Up to 4469 conditions per place. [2023-09-01 04:45:04,905 INFO L137 encePairwiseOnDemand]: 536/558 looper letters, 364 selfloop transitions, 120 changer transitions 7/497 dead transitions. [2023-09-01 04:45:04,905 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 497 transitions, 4999 flow [2023-09-01 04:45:04,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-09-01 04:45:04,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-09-01 04:45:04,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 7877 transitions. [2023-09-01 04:45:04,911 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4411402329749104 [2023-09-01 04:45:04,911 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 7877 transitions. [2023-09-01 04:45:04,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 7877 transitions. [2023-09-01 04:45:04,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:45:04,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 7877 transitions. [2023-09-01 04:45:04,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 246.15625) internal successors, (7877), 32 states have internal predecessors, (7877), 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) [2023-09-01 04:45:04,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 558.0) internal successors, (18414), 33 states have internal predecessors, (18414), 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) [2023-09-01 04:45:04,938 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 558.0) internal successors, (18414), 33 states have internal predecessors, (18414), 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) [2023-09-01 04:45:04,938 INFO L175 Difference]: Start difference. First operand has 244 places, 209 transitions, 2644 flow. Second operand 32 states and 7877 transitions. [2023-09-01 04:45:04,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 497 transitions, 4999 flow [2023-09-01 04:45:05,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 497 transitions, 4941 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-09-01 04:45:05,195 INFO L231 Difference]: Finished difference. Result has 275 places, 224 transitions, 3007 flow [2023-09-01 04:45:05,195 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2593, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=3007, PETRI_PLACES=275, PETRI_TRANSITIONS=224} [2023-09-01 04:45:05,196 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 199 predicate places. [2023-09-01 04:45:05,196 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 224 transitions, 3007 flow [2023-09-01 04:45:05,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 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) [2023-09-01 04:45:05,196 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:45:05,197 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:45:05,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-09-01 04:45:05,197 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:45:05,197 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:45:05,197 INFO L85 PathProgramCache]: Analyzing trace with hash -176405184, now seen corresponding path program 2 times [2023-09-01 04:45:05,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:45:05,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778039081] [2023-09-01 04:45:05,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:45:05,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:45:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:45:06,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:45:06,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:45:06,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778039081] [2023-09-01 04:45:06,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778039081] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:45:06,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:45:06,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-09-01 04:45:06,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790216129] [2023-09-01 04:45:06,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:45:06,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-09-01 04:45:06,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:45:06,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-09-01 04:45:06,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-09-01 04:45:08,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 558 [2023-09-01 04:45:08,506 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 224 transitions, 3007 flow. Second operand has 19 states, 19 states have (on average 225.68421052631578) internal successors, (4288), 19 states have internal predecessors, (4288), 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) [2023-09-01 04:45:08,507 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:45:08,507 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 558 [2023-09-01 04:45:08,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:45:11,524 INFO L130 PetriNetUnfolder]: 8266/15868 cut-off events. [2023-09-01 04:45:11,524 INFO L131 PetriNetUnfolder]: For 52372/52428 co-relation queries the response was YES. [2023-09-01 04:45:11,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58327 conditions, 15868 events. 8266/15868 cut-off events. For 52372/52428 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 107465 event pairs, 3740 based on Foata normal form. 38/15398 useless extension candidates. Maximal degree in co-relation 57025. Up to 9290 conditions per place. [2023-09-01 04:45:11,651 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 262 selfloop transitions, 76 changer transitions 12/356 dead transitions. [2023-09-01 04:45:11,651 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 356 transitions, 4348 flow [2023-09-01 04:45:11,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-09-01 04:45:11,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-09-01 04:45:11,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 4447 transitions. [2023-09-01 04:45:11,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.419449160535748 [2023-09-01 04:45:11,655 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 4447 transitions. [2023-09-01 04:45:11,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 4447 transitions. [2023-09-01 04:45:11,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:45:11,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 4447 transitions. [2023-09-01 04:45:11,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 234.05263157894737) internal successors, (4447), 19 states have internal predecessors, (4447), 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) [2023-09-01 04:45:11,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 558.0) internal successors, (11160), 20 states have internal predecessors, (11160), 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) [2023-09-01 04:45:11,664 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 558.0) internal successors, (11160), 20 states have internal predecessors, (11160), 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) [2023-09-01 04:45:11,664 INFO L175 Difference]: Start difference. First operand has 275 places, 224 transitions, 3007 flow. Second operand 19 states and 4447 transitions. [2023-09-01 04:45:11,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 356 transitions, 4348 flow [2023-09-01 04:45:11,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 356 transitions, 4101 flow, removed 10 selfloop flow, removed 21 redundant places. [2023-09-01 04:45:11,880 INFO L231 Difference]: Finished difference. Result has 275 places, 230 transitions, 3001 flow [2023-09-01 04:45:11,881 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2764, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3001, PETRI_PLACES=275, PETRI_TRANSITIONS=230} [2023-09-01 04:45:11,881 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 199 predicate places. [2023-09-01 04:45:11,881 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 230 transitions, 3001 flow [2023-09-01 04:45:11,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 225.68421052631578) internal successors, (4288), 19 states have internal predecessors, (4288), 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) [2023-09-01 04:45:11,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:45:11,882 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:45:11,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-09-01 04:45:11,882 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:45:11,882 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:45:11,882 INFO L85 PathProgramCache]: Analyzing trace with hash 994909586, now seen corresponding path program 3 times [2023-09-01 04:45:11,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:45:11,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620838947] [2023-09-01 04:45:11,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:45:11,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:45:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:45:12,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:45:12,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:45:12,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620838947] [2023-09-01 04:45:12,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620838947] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:45:12,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:45:12,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-09-01 04:45:12,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327485582] [2023-09-01 04:45:12,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:45:12,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-09-01 04:45:12,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:45:12,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-09-01 04:45:12,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2023-09-01 04:45:14,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 558 [2023-09-01 04:45:14,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 230 transitions, 3001 flow. Second operand has 19 states, 19 states have (on average 233.68421052631578) internal successors, (4440), 19 states have internal predecessors, (4440), 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) [2023-09-01 04:45:14,992 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:45:14,992 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 558 [2023-09-01 04:45:14,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:45:18,381 INFO L130 PetriNetUnfolder]: 8258/15787 cut-off events. [2023-09-01 04:45:18,381 INFO L131 PetriNetUnfolder]: For 52621/52684 co-relation queries the response was YES. [2023-09-01 04:45:18,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57980 conditions, 15787 events. 8258/15787 cut-off events. For 52621/52684 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 106042 event pairs, 1385 based on Foata normal form. 87/15347 useless extension candidates. Maximal degree in co-relation 57158. Up to 5312 conditions per place. [2023-09-01 04:45:18,527 INFO L137 encePairwiseOnDemand]: 537/558 looper letters, 273 selfloop transitions, 132 changer transitions 7/418 dead transitions. [2023-09-01 04:45:18,527 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 418 transitions, 4637 flow [2023-09-01 04:45:18,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-09-01 04:45:18,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-09-01 04:45:18,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 5826 transitions. [2023-09-01 04:45:18,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4350358422939068 [2023-09-01 04:45:18,531 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 5826 transitions. [2023-09-01 04:45:18,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 5826 transitions. [2023-09-01 04:45:18,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:45:18,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 5826 transitions. [2023-09-01 04:45:18,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 242.75) internal successors, (5826), 24 states have internal predecessors, (5826), 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) [2023-09-01 04:45:18,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 558.0) internal successors, (13950), 25 states have internal predecessors, (13950), 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) [2023-09-01 04:45:18,542 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 558.0) internal successors, (13950), 25 states have internal predecessors, (13950), 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) [2023-09-01 04:45:18,542 INFO L175 Difference]: Start difference. First operand has 275 places, 230 transitions, 3001 flow. Second operand 24 states and 5826 transitions. [2023-09-01 04:45:18,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 418 transitions, 4637 flow [2023-09-01 04:45:18,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 418 transitions, 4480 flow, removed 4 selfloop flow, removed 15 redundant places. [2023-09-01 04:45:18,766 INFO L231 Difference]: Finished difference. Result has 285 places, 235 transitions, 3198 flow [2023-09-01 04:45:18,766 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2844, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=3198, PETRI_PLACES=285, PETRI_TRANSITIONS=235} [2023-09-01 04:45:18,766 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 209 predicate places. [2023-09-01 04:45:18,766 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 235 transitions, 3198 flow [2023-09-01 04:45:18,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 233.68421052631578) internal successors, (4440), 19 states have internal predecessors, (4440), 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) [2023-09-01 04:45:18,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:45:18,767 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:45:18,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-09-01 04:45:18,768 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:45:18,768 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:45:18,768 INFO L85 PathProgramCache]: Analyzing trace with hash -26871209, now seen corresponding path program 2 times [2023-09-01 04:45:18,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:45:18,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378859815] [2023-09-01 04:45:18,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:45:18,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:45:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:45:20,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:45:20,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:45:20,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378859815] [2023-09-01 04:45:20,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378859815] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:45:20,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:45:20,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-09-01 04:45:20,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200999245] [2023-09-01 04:45:20,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:45:20,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-09-01 04:45:20,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:45:20,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-09-01 04:45:20,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2023-09-01 04:45:21,416 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 558 [2023-09-01 04:45:21,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 235 transitions, 3198 flow. Second operand has 19 states, 19 states have (on average 229.68421052631578) internal successors, (4364), 19 states have internal predecessors, (4364), 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) [2023-09-01 04:45:21,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:45:21,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 558 [2023-09-01 04:45:21,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:45:24,208 INFO L130 PetriNetUnfolder]: 8321/16031 cut-off events. [2023-09-01 04:45:24,208 INFO L131 PetriNetUnfolder]: For 54859/54889 co-relation queries the response was YES. [2023-09-01 04:45:24,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59903 conditions, 16031 events. 8321/16031 cut-off events. For 54859/54889 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 108838 event pairs, 1651 based on Foata normal form. 50/15569 useless extension candidates. Maximal degree in co-relation 56823. Up to 7031 conditions per place. [2023-09-01 04:45:24,341 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 253 selfloop transitions, 85 changer transitions 12/356 dead transitions. [2023-09-01 04:45:24,341 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 356 transitions, 4484 flow [2023-09-01 04:45:24,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-09-01 04:45:24,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-09-01 04:45:24,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4282 transitions. [2023-09-01 04:45:24,346 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4263241736360016 [2023-09-01 04:45:24,346 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4282 transitions. [2023-09-01 04:45:24,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4282 transitions. [2023-09-01 04:45:24,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:45:24,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4282 transitions. [2023-09-01 04:45:24,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 237.88888888888889) internal successors, (4282), 18 states have internal predecessors, (4282), 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) [2023-09-01 04:45:24,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 558.0) internal successors, (10602), 19 states have internal predecessors, (10602), 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) [2023-09-01 04:45:24,356 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 558.0) internal successors, (10602), 19 states have internal predecessors, (10602), 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) [2023-09-01 04:45:24,356 INFO L175 Difference]: Start difference. First operand has 285 places, 235 transitions, 3198 flow. Second operand 18 states and 4282 transitions. [2023-09-01 04:45:24,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 356 transitions, 4484 flow [2023-09-01 04:45:24,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 356 transitions, 4237 flow, removed 13 selfloop flow, removed 19 redundant places. [2023-09-01 04:45:24,613 INFO L231 Difference]: Finished difference. Result has 285 places, 237 transitions, 3197 flow [2023-09-01 04:45:24,613 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2949, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3197, PETRI_PLACES=285, PETRI_TRANSITIONS=237} [2023-09-01 04:45:24,613 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 209 predicate places. [2023-09-01 04:45:24,614 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 237 transitions, 3197 flow [2023-09-01 04:45:24,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 229.68421052631578) internal successors, (4364), 19 states have internal predecessors, (4364), 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) [2023-09-01 04:45:24,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:45:24,614 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:45:24,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-09-01 04:45:24,614 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:45:24,615 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:45:24,615 INFO L85 PathProgramCache]: Analyzing trace with hash 2072442385, now seen corresponding path program 1 times [2023-09-01 04:45:24,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:45:24,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590693393] [2023-09-01 04:45:24,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:45:24,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:45:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 04:45:25,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 04:45:25,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 04:45:25,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590693393] [2023-09-01 04:45:25,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590693393] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 04:45:25,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 04:45:25,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-09-01 04:45:25,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317309881] [2023-09-01 04:45:25,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 04:45:25,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-09-01 04:45:25,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 04:45:25,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-09-01 04:45:25,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2023-09-01 04:45:27,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 558 [2023-09-01 04:45:27,179 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 237 transitions, 3197 flow. Second operand has 16 states, 16 states have (on average 241.1875) internal successors, (3859), 16 states have internal predecessors, (3859), 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) [2023-09-01 04:45:27,179 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 04:45:27,179 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 558 [2023-09-01 04:45:27,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 04:45:30,117 INFO L130 PetriNetUnfolder]: 9135/17541 cut-off events. [2023-09-01 04:45:30,118 INFO L131 PetriNetUnfolder]: For 61969/62038 co-relation queries the response was YES. [2023-09-01 04:45:30,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65612 conditions, 17541 events. 9135/17541 cut-off events. For 61969/62038 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 121367 event pairs, 5694 based on Foata normal form. 23/16979 useless extension candidates. Maximal degree in co-relation 62564. Up to 13426 conditions per place. [2023-09-01 04:45:30,283 INFO L137 encePairwiseOnDemand]: 544/558 looper letters, 297 selfloop transitions, 39 changer transitions 8/350 dead transitions. [2023-09-01 04:45:30,284 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 350 transitions, 4546 flow [2023-09-01 04:45:30,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 04:45:30,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 04:45:30,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3039 transitions. [2023-09-01 04:45:30,287 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4538530465949821 [2023-09-01 04:45:30,287 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3039 transitions. [2023-09-01 04:45:30,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3039 transitions. [2023-09-01 04:45:30,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 04:45:30,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3039 transitions. [2023-09-01 04:45:30,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 253.25) internal successors, (3039), 12 states have internal predecessors, (3039), 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) [2023-09-01 04:45:30,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 558.0) internal successors, (7254), 13 states have internal predecessors, (7254), 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) [2023-09-01 04:45:30,293 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 558.0) internal successors, (7254), 13 states have internal predecessors, (7254), 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) [2023-09-01 04:45:30,293 INFO L175 Difference]: Start difference. First operand has 285 places, 237 transitions, 3197 flow. Second operand 12 states and 3039 transitions. [2023-09-01 04:45:30,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 350 transitions, 4546 flow [2023-09-01 04:45:30,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 350 transitions, 4432 flow, removed 0 selfloop flow, removed 11 redundant places. [2023-09-01 04:45:30,808 INFO L231 Difference]: Finished difference. Result has 288 places, 242 transitions, 3269 flow [2023-09-01 04:45:30,809 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=3083, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3269, PETRI_PLACES=288, PETRI_TRANSITIONS=242} [2023-09-01 04:45:30,809 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 212 predicate places. [2023-09-01 04:45:30,809 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 242 transitions, 3269 flow [2023-09-01 04:45:30,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 241.1875) internal successors, (3859), 16 states have internal predecessors, (3859), 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) [2023-09-01 04:45:30,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 04:45:30,810 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 04:45:30,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-09-01 04:45:30,810 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-09-01 04:45:30,811 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 04:45:30,811 INFO L85 PathProgramCache]: Analyzing trace with hash -136744271, now seen corresponding path program 1 times [2023-09-01 04:45:30,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 04:45:30,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830618894] [2023-09-01 04:45:30,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 04:45:30,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 04:45:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat