./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread/queue_longer.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --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_longer.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 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 08:11:10,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:11:10,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:11:11,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:11:11,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:11:11,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:11:11,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:11:11,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:11:11,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:11:11,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:11:11,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:11:11,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:11:11,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:11:11,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:11:11,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:11:11,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:11:11,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:11:11,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:11:11,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:11:11,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:11:11,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:11:11,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:11:11,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:11:11,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:11:11,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:11:11,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:11:11,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:11:11,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:11:11,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:11:11,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:11:11,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:11:11,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:11:11,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:11:11,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:11:11,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:11:11,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:11:11,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:11:11,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:11:11,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:11:11,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:11:11,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:11:11,068 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:11:11,101 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:11:11,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:11:11,102 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:11:11,102 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:11:11,103 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:11:11,103 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:11:11,104 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:11:11,104 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:11:11,104 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:11:11,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:11:11,105 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:11:11,105 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:11:11,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:11:11,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:11:11,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:11:11,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:11:11,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:11:11,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:11:11,107 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:11:11,107 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:11:11,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:11:11,107 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:11:11,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:11:11,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:11:11,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:11:11,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:11:11,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:11:11,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:11:11,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:11:11,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:11:11,109 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:11:11,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:11:11,110 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:11:11,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:11:11,110 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:11:11,110 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:11:11,110 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:11:11,111 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:11:11,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:11:11,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:11:11,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:11:11,433 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:11:11,433 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:11:11,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue_longer.i [2023-08-30 08:11:12,605 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:11:12,891 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:11:12,892 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longer.i [2023-08-30 08:11:12,909 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd13add4f/0ed7ceba47df4ec1b160df5dc22a65c0/FLAG77ff59bf8 [2023-08-30 08:11:12,927 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd13add4f/0ed7ceba47df4ec1b160df5dc22a65c0 [2023-08-30 08:11:12,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:11:12,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:11:12,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:11:12,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:11:12,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:11:12,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:11:12" (1/1) ... [2023-08-30 08:11:12,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@96e989b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:11:12, skipping insertion in model container [2023-08-30 08:11:12,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:11:12" (1/1) ... [2023-08-30 08:11:12,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:11:12,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:11:13,426 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_longer.i[43296,43309] [2023-08-30 08:11:13,432 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_longer.i[43503,43516] [2023-08-30 08:11:13,437 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_longer.i[43783,43796] [2023-08-30 08:11:13,443 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:11:13,458 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:11:13,553 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_longer.i[43296,43309] [2023-08-30 08:11:13,560 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_longer.i[43503,43516] [2023-08-30 08:11:13,563 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_longer.i[43783,43796] [2023-08-30 08:11:13,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:11:13,630 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:11:13,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:11:13 WrapperNode [2023-08-30 08:11:13,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:11:13,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:11:13,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:11:13,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:11:13,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:11:13" (1/1) ... [2023-08-30 08:11:13,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:11:13" (1/1) ... [2023-08-30 08:11:13,713 INFO L138 Inliner]: procedures = 274, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 261 [2023-08-30 08:11:13,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:11:13,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:11:13,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:11:13,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:11:13,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:11:13" (1/1) ... [2023-08-30 08:11:13,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:11:13" (1/1) ... [2023-08-30 08:11:13,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:11:13" (1/1) ... [2023-08-30 08:11:13,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:11:13" (1/1) ... [2023-08-30 08:11:13,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:11:13" (1/1) ... [2023-08-30 08:11:13,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:11:13" (1/1) ... [2023-08-30 08:11:13,760 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:11:13" (1/1) ... [2023-08-30 08:11:13,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:11:13" (1/1) ... [2023-08-30 08:11:13,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:11:13,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:11:13,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:11:13,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:11:13,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:11:13" (1/1) ... [2023-08-30 08:11:13,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:11:13,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:11:13,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 08:11:13,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 08:11:13,854 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-08-30 08:11:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-08-30 08:11:13,854 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-08-30 08:11:13,855 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-08-30 08:11:13,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:11:13,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:11:13,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 08:11:13,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:11:13,855 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 08:11:13,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:11:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:11:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:11:13,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:11:13,857 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 08:11:14,061 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:11:14,063 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:11:14,416 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:11:14,425 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:11:14,425 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-30 08:11:14,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:11:14 BoogieIcfgContainer [2023-08-30 08:11:14,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:11:14,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:11:14,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:11:14,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:11:14,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:11:12" (1/3) ... [2023-08-30 08:11:14,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35023cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:11:14, skipping insertion in model container [2023-08-30 08:11:14,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:11:13" (2/3) ... [2023-08-30 08:11:14,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35023cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:11:14, skipping insertion in model container [2023-08-30 08:11:14,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:11:14" (3/3) ... [2023-08-30 08:11:14,447 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longer.i [2023-08-30 08:11:14,454 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:11:14,463 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:11:14,463 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-30 08:11:14,464 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:11:14,600 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 08:11:14,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 283 places, 291 transitions, 598 flow [2023-08-30 08:11:14,790 INFO L130 PetriNetUnfolder]: 15/289 cut-off events. [2023-08-30 08:11:14,790 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 08:11:14,801 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. [2023-08-30 08:11:14,801 INFO L82 GeneralOperation]: Start removeDead. Operand has 283 places, 291 transitions, 598 flow [2023-08-30 08:11:14,812 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 272 places, 280 transitions, 569 flow [2023-08-30 08:11:14,816 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:11:14,831 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 272 places, 280 transitions, 569 flow [2023-08-30 08:11:14,833 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 272 places, 280 transitions, 569 flow [2023-08-30 08:11:14,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 280 transitions, 569 flow [2023-08-30 08:11:14,894 INFO L130 PetriNetUnfolder]: 15/280 cut-off events. [2023-08-30 08:11:14,895 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 08:11:14,899 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. [2023-08-30 08:11:14,909 INFO L119 LiptonReduction]: Number of co-enabled transitions 22068 [2023-08-30 08:11:22,983 INFO L134 LiptonReduction]: Checked pairs total: 50861 [2023-08-30 08:11:22,983 INFO L136 LiptonReduction]: Total number of compositions: 267 [2023-08-30 08:11:22,996 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:11:23,001 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;@67c19250, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:11:23,002 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-08-30 08:11:23,006 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2023-08-30 08:11:23,006 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:11:23,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:11:23,007 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:11:23,008 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:11:23,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:11:23,012 INFO L85 PathProgramCache]: Analyzing trace with hash -471379928, now seen corresponding path program 1 times [2023-08-30 08:11:23,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:11:23,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218467483] [2023-08-30 08:11:23,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:11:23,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:11:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:11:24,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:11:24,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:11:24,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218467483] [2023-08-30 08:11:24,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218467483] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:11:24,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:11:24,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:11:24,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080595682] [2023-08-30 08:11:24,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:11:24,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:11:24,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:11:24,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:11:24,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:11:24,931 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 558 [2023-08-30 08:11:24,938 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) [2023-08-30 08:11:24,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:11:24,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 558 [2023-08-30 08:11:24,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:11:25,688 INFO L130 PetriNetUnfolder]: 3012/4951 cut-off events. [2023-08-30 08:11:25,689 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2023-08-30 08:11:25,694 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. [2023-08-30 08:11:25,715 INFO L137 encePairwiseOnDemand]: 548/558 looper letters, 70 selfloop transitions, 9 changer transitions 0/85 dead transitions. [2023-08-30 08:11:25,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 85 transitions, 337 flow [2023-08-30 08:11:25,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:11:25,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:11:25,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1607 transitions. [2023-08-30 08:11:25,740 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47998805256869775 [2023-08-30 08:11:25,741 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1607 transitions. [2023-08-30 08:11:25,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1607 transitions. [2023-08-30 08:11:25,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:11:25,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1607 transitions. [2023-08-30 08:11:25,752 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) [2023-08-30 08:11:25,763 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) [2023-08-30 08:11:25,765 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) [2023-08-30 08:11:25,767 INFO L175 Difference]: Start difference. First operand has 76 places, 78 transitions, 165 flow. Second operand 6 states and 1607 transitions. [2023-08-30 08:11:25,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 85 transitions, 337 flow [2023-08-30 08:11:25,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 85 transitions, 332 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:11:25,779 INFO L231 Difference]: Finished difference. Result has 82 places, 84 transitions, 216 flow [2023-08-30 08:11:25,781 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} [2023-08-30 08:11:25,785 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 6 predicate places. [2023-08-30 08:11:25,786 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 84 transitions, 216 flow [2023-08-30 08:11:25,787 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) [2023-08-30 08:11:25,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:11:25,789 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:11:25,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:11:25,790 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:11:25,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:11:25,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1727417925, now seen corresponding path program 1 times [2023-08-30 08:11:25,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:11:25,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852098498] [2023-08-30 08:11:25,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:11:25,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:11:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:11:26,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:11:26,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:11:26,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852098498] [2023-08-30 08:11:26,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852098498] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:11:26,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:11:26,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:11:26,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755349047] [2023-08-30 08:11:26,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:11:26,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:11:26,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:11:26,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:11:26,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:11:27,492 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 558 [2023-08-30 08:11:27,494 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) [2023-08-30 08:11:27,494 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:11:27,494 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 558 [2023-08-30 08:11:27,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:11:28,263 INFO L130 PetriNetUnfolder]: 3238/5330 cut-off events. [2023-08-30 08:11:28,264 INFO L131 PetriNetUnfolder]: For 199/199 co-relation queries the response was YES. [2023-08-30 08:11:28,271 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. [2023-08-30 08:11:28,298 INFO L137 encePairwiseOnDemand]: 549/558 looper letters, 127 selfloop transitions, 17 changer transitions 0/150 dead transitions. [2023-08-30 08:11:28,298 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 150 transitions, 654 flow [2023-08-30 08:11:28,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:11:28,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:11:28,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1648 transitions. [2023-08-30 08:11:28,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4922341696535245 [2023-08-30 08:11:28,319 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1648 transitions. [2023-08-30 08:11:28,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1648 transitions. [2023-08-30 08:11:28,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:11:28,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1648 transitions. [2023-08-30 08:11:28,324 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) [2023-08-30 08:11:28,331 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) [2023-08-30 08:11:28,333 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) [2023-08-30 08:11:28,333 INFO L175 Difference]: Start difference. First operand has 82 places, 84 transitions, 216 flow. Second operand 6 states and 1648 transitions. [2023-08-30 08:11:28,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 150 transitions, 654 flow [2023-08-30 08:11:28,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 150 transitions, 654 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 08:11:28,339 INFO L231 Difference]: Finished difference. Result has 90 places, 93 transitions, 310 flow [2023-08-30 08:11:28,340 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} [2023-08-30 08:11:28,341 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 14 predicate places. [2023-08-30 08:11:28,341 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 93 transitions, 310 flow [2023-08-30 08:11:28,342 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) [2023-08-30 08:11:28,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:11:28,342 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:11:28,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:11:28,343 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:11:28,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:11:28,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1727873625, now seen corresponding path program 2 times [2023-08-30 08:11:28,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:11:28,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724354080] [2023-08-30 08:11:28,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:11:28,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:11:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:11:28,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:11:28,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:11:28,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724354080] [2023-08-30 08:11:28,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724354080] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:11:28,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:11:28,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:11:28,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266791933] [2023-08-30 08:11:28,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:11:28,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:11:28,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:11:28,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:11:28,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:11:29,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 558 [2023-08-30 08:11:29,004 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) [2023-08-30 08:11:29,004 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:11:29,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 558 [2023-08-30 08:11:29,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:11:29,606 INFO L130 PetriNetUnfolder]: 3284/5402 cut-off events. [2023-08-30 08:11:29,606 INFO L131 PetriNetUnfolder]: For 867/867 co-relation queries the response was YES. [2023-08-30 08:11:29,640 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. [2023-08-30 08:11:29,674 INFO L137 encePairwiseOnDemand]: 551/558 looper letters, 119 selfloop transitions, 16 changer transitions 0/141 dead transitions. [2023-08-30 08:11:29,674 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 141 transitions, 697 flow [2023-08-30 08:11:29,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:11:29,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:11:29,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1380 transitions. [2023-08-30 08:11:29,679 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4946236559139785 [2023-08-30 08:11:29,679 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1380 transitions. [2023-08-30 08:11:29,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1380 transitions. [2023-08-30 08:11:29,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:11:29,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1380 transitions. [2023-08-30 08:11:29,684 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) [2023-08-30 08:11:29,689 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) [2023-08-30 08:11:29,691 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) [2023-08-30 08:11:29,691 INFO L175 Difference]: Start difference. First operand has 90 places, 93 transitions, 310 flow. Second operand 5 states and 1380 transitions. [2023-08-30 08:11:29,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 141 transitions, 697 flow [2023-08-30 08:11:29,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 141 transitions, 679 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-30 08:11:29,705 INFO L231 Difference]: Finished difference. Result has 96 places, 98 transitions, 376 flow [2023-08-30 08:11:29,706 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} [2023-08-30 08:11:29,708 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 20 predicate places. [2023-08-30 08:11:29,708 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 98 transitions, 376 flow [2023-08-30 08:11:29,709 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) [2023-08-30 08:11:29,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:11:29,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:11:29,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:11:29,710 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:11:29,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:11:29,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1665267153, now seen corresponding path program 1 times [2023-08-30 08:11:29,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:11:29,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958718161] [2023-08-30 08:11:29,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:11:29,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:11:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:11:30,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:11:30,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:11:30,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958718161] [2023-08-30 08:11:30,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958718161] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:11:30,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:11:30,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:11:30,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137989737] [2023-08-30 08:11:30,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:11:30,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:11:30,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:11:30,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:11:30,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:11:30,693 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 558 [2023-08-30 08:11:30,695 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) [2023-08-30 08:11:30,695 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:11:30,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 558 [2023-08-30 08:11:30,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:11:31,438 INFO L130 PetriNetUnfolder]: 3280/5405 cut-off events. [2023-08-30 08:11:31,438 INFO L131 PetriNetUnfolder]: For 1542/1542 co-relation queries the response was YES. [2023-08-30 08:11:31,450 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. [2023-08-30 08:11:31,470 INFO L137 encePairwiseOnDemand]: 549/558 looper letters, 87 selfloop transitions, 10 changer transitions 0/103 dead transitions. [2023-08-30 08:11:31,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 103 transitions, 582 flow [2023-08-30 08:11:31,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:11:31,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:11:31,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1609 transitions. [2023-08-30 08:11:31,479 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4805854241338112 [2023-08-30 08:11:31,479 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1609 transitions. [2023-08-30 08:11:31,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1609 transitions. [2023-08-30 08:11:31,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:11:31,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1609 transitions. [2023-08-30 08:11:31,485 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) [2023-08-30 08:11:31,490 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) [2023-08-30 08:11:31,491 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) [2023-08-30 08:11:31,491 INFO L175 Difference]: Start difference. First operand has 96 places, 98 transitions, 376 flow. Second operand 6 states and 1609 transitions. [2023-08-30 08:11:31,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 103 transitions, 582 flow [2023-08-30 08:11:31,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 103 transitions, 574 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-08-30 08:11:31,498 INFO L231 Difference]: Finished difference. Result has 102 places, 100 transitions, 408 flow [2023-08-30 08:11:31,498 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} [2023-08-30 08:11:31,500 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 26 predicate places. [2023-08-30 08:11:31,500 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 100 transitions, 408 flow [2023-08-30 08:11:31,501 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) [2023-08-30 08:11:31,501 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:11:31,501 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:11:31,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:11:31,502 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:11:31,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:11:31,502 INFO L85 PathProgramCache]: Analyzing trace with hash 133239830, now seen corresponding path program 1 times [2023-08-30 08:11:31,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:11:31,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764959864] [2023-08-30 08:11:31,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:11:31,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:11:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:11:31,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:11:31,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:11:31,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764959864] [2023-08-30 08:11:31,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764959864] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:11:31,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:11:31,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:11:31,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766490609] [2023-08-30 08:11:31,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:11:31,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:11:31,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:11:31,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:11:31,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:11:31,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 558 [2023-08-30 08:11:31,562 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) [2023-08-30 08:11:31,562 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:11:31,563 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 558 [2023-08-30 08:11:31,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:11:32,383 INFO L130 PetriNetUnfolder]: 5225/8793 cut-off events. [2023-08-30 08:11:32,383 INFO L131 PetriNetUnfolder]: For 2381/2418 co-relation queries the response was YES. [2023-08-30 08:11:32,412 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. [2023-08-30 08:11:32,447 INFO L137 encePairwiseOnDemand]: 553/558 looper letters, 159 selfloop transitions, 2 changer transitions 0/172 dead transitions. [2023-08-30 08:11:32,448 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 172 transitions, 972 flow [2023-08-30 08:11:32,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:11:32,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:11:32,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 953 transitions. [2023-08-30 08:11:32,451 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5692951015531661 [2023-08-30 08:11:32,452 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 953 transitions. [2023-08-30 08:11:32,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 953 transitions. [2023-08-30 08:11:32,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:11:32,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 953 transitions. [2023-08-30 08:11:32,456 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) [2023-08-30 08:11:32,459 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) [2023-08-30 08:11:32,460 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) [2023-08-30 08:11:32,460 INFO L175 Difference]: Start difference. First operand has 102 places, 100 transitions, 408 flow. Second operand 3 states and 953 transitions. [2023-08-30 08:11:32,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 172 transitions, 972 flow [2023-08-30 08:11:32,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 172 transitions, 956 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 08:11:32,468 INFO L231 Difference]: Finished difference. Result has 101 places, 101 transitions, 408 flow [2023-08-30 08:11:32,469 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} [2023-08-30 08:11:32,471 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 25 predicate places. [2023-08-30 08:11:32,471 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 101 transitions, 408 flow [2023-08-30 08:11:32,471 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) [2023-08-30 08:11:32,472 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:11:32,472 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:11:32,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 08:11:32,472 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:11:32,473 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:11:32,473 INFO L85 PathProgramCache]: Analyzing trace with hash 791606712, now seen corresponding path program 1 times [2023-08-30 08:11:32,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:11:32,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491442229] [2023-08-30 08:11:32,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:11:32,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:11:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:11:33,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:11:33,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:11:33,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491442229] [2023-08-30 08:11:33,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491442229] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:11:33,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:11:33,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:11:33,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311272960] [2023-08-30 08:11:33,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:11:33,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:11:33,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:11:33,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:11:33,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:11:34,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 558 [2023-08-30 08:11:34,230 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) [2023-08-30 08:11:34,230 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:11:34,230 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 558 [2023-08-30 08:11:34,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:11:35,820 INFO L130 PetriNetUnfolder]: 5786/9558 cut-off events. [2023-08-30 08:11:35,820 INFO L131 PetriNetUnfolder]: For 2413/2413 co-relation queries the response was YES. [2023-08-30 08:11:35,841 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. [2023-08-30 08:11:35,878 INFO L137 encePairwiseOnDemand]: 548/558 looper letters, 140 selfloop transitions, 20 changer transitions 0/166 dead transitions. [2023-08-30 08:11:35,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 166 transitions, 928 flow [2023-08-30 08:11:35,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:11:35,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:11:35,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1652 transitions. [2023-08-30 08:11:35,884 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4934289127837515 [2023-08-30 08:11:35,884 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1652 transitions. [2023-08-30 08:11:35,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1652 transitions. [2023-08-30 08:11:35,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:11:35,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1652 transitions. [2023-08-30 08:11:35,889 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) [2023-08-30 08:11:35,894 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) [2023-08-30 08:11:35,895 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) [2023-08-30 08:11:35,895 INFO L175 Difference]: Start difference. First operand has 101 places, 101 transitions, 408 flow. Second operand 6 states and 1652 transitions. [2023-08-30 08:11:35,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 166 transitions, 928 flow [2023-08-30 08:11:35,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 166 transitions, 918 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:11:35,913 INFO L231 Difference]: Finished difference. Result has 106 places, 103 transitions, 474 flow [2023-08-30 08:11:35,914 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} [2023-08-30 08:11:35,916 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 30 predicate places. [2023-08-30 08:11:35,916 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 103 transitions, 474 flow [2023-08-30 08:11:35,917 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) [2023-08-30 08:11:35,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:11:35,917 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:11:35,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 08:11:35,918 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:11:35,919 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:11:35,920 INFO L85 PathProgramCache]: Analyzing trace with hash -926142348, now seen corresponding path program 2 times [2023-08-30 08:11:35,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:11:35,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280932380] [2023-08-30 08:11:35,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:11:35,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:11:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:11:36,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:11:36,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:11:36,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280932380] [2023-08-30 08:11:36,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280932380] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:11:36,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:11:36,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:11:36,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944312443] [2023-08-30 08:11:36,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:11:36,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:11:36,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:11:36,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:11:36,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:11:36,827 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 558 [2023-08-30 08:11:36,829 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) [2023-08-30 08:11:36,829 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:11:36,829 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 558 [2023-08-30 08:11:36,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:11:37,835 INFO L130 PetriNetUnfolder]: 6018/9970 cut-off events. [2023-08-30 08:11:37,835 INFO L131 PetriNetUnfolder]: For 4056/4056 co-relation queries the response was YES. [2023-08-30 08:11:37,857 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. [2023-08-30 08:11:37,893 INFO L137 encePairwiseOnDemand]: 548/558 looper letters, 141 selfloop transitions, 23 changer transitions 0/170 dead transitions. [2023-08-30 08:11:37,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 170 transitions, 1012 flow [2023-08-30 08:11:37,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:11:37,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:11:37,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1657 transitions. [2023-08-30 08:11:37,898 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49492234169653526 [2023-08-30 08:11:37,899 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1657 transitions. [2023-08-30 08:11:37,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1657 transitions. [2023-08-30 08:11:37,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:11:37,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1657 transitions. [2023-08-30 08:11:37,903 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) [2023-08-30 08:11:37,907 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) [2023-08-30 08:11:37,908 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) [2023-08-30 08:11:37,909 INFO L175 Difference]: Start difference. First operand has 106 places, 103 transitions, 474 flow. Second operand 6 states and 1657 transitions. [2023-08-30 08:11:37,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 170 transitions, 1012 flow [2023-08-30 08:11:37,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 170 transitions, 980 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 08:11:37,924 INFO L231 Difference]: Finished difference. Result has 108 places, 106 transitions, 533 flow [2023-08-30 08:11:37,925 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} [2023-08-30 08:11:37,926 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 32 predicate places. [2023-08-30 08:11:37,926 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 106 transitions, 533 flow [2023-08-30 08:11:37,927 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) [2023-08-30 08:11:37,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:11:37,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:11:37,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 08:11:37,927 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:11:37,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:11:37,928 INFO L85 PathProgramCache]: Analyzing trace with hash 89131410, now seen corresponding path program 3 times [2023-08-30 08:11:37,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:11:37,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426410013] [2023-08-30 08:11:37,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:11:37,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:11:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:11:38,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:11:38,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:11:38,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426410013] [2023-08-30 08:11:38,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426410013] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:11:38,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:11:38,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:11:38,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237430582] [2023-08-30 08:11:38,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:11:38,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:11:38,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:11:38,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:11:38,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:11:38,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 558 [2023-08-30 08:11:38,882 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) [2023-08-30 08:11:38,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:11:38,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 558 [2023-08-30 08:11:38,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:11:39,842 INFO L130 PetriNetUnfolder]: 6012/9917 cut-off events. [2023-08-30 08:11:39,843 INFO L131 PetriNetUnfolder]: For 6455/6455 co-relation queries the response was YES. [2023-08-30 08:11:39,863 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. [2023-08-30 08:11:39,895 INFO L137 encePairwiseOnDemand]: 549/558 looper letters, 141 selfloop transitions, 24 changer transitions 0/171 dead transitions. [2023-08-30 08:11:39,895 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 171 transitions, 1063 flow [2023-08-30 08:11:39,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:11:39,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:11:39,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1657 transitions. [2023-08-30 08:11:39,900 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49492234169653526 [2023-08-30 08:11:39,900 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1657 transitions. [2023-08-30 08:11:39,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1657 transitions. [2023-08-30 08:11:39,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:11:39,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1657 transitions. [2023-08-30 08:11:39,917 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) [2023-08-30 08:11:39,922 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) [2023-08-30 08:11:39,924 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) [2023-08-30 08:11:39,924 INFO L175 Difference]: Start difference. First operand has 108 places, 106 transitions, 533 flow. Second operand 6 states and 1657 transitions. [2023-08-30 08:11:39,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 171 transitions, 1063 flow [2023-08-30 08:11:39,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 171 transitions, 1021 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-08-30 08:11:39,949 INFO L231 Difference]: Finished difference. Result has 111 places, 108 transitions, 580 flow [2023-08-30 08:11:39,949 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} [2023-08-30 08:11:39,951 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 35 predicate places. [2023-08-30 08:11:39,951 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 108 transitions, 580 flow [2023-08-30 08:11:39,952 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) [2023-08-30 08:11:39,952 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:11:39,952 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:11:39,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 08:11:39,953 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:11:39,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:11:39,953 INFO L85 PathProgramCache]: Analyzing trace with hash -156159243, now seen corresponding path program 1 times [2023-08-30 08:11:39,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:11:39,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20484789] [2023-08-30 08:11:39,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:11:39,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:11:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:11:39,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:11:39,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:11:39,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20484789] [2023-08-30 08:11:39,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20484789] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:11:39,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:11:39,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:11:39,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595946895] [2023-08-30 08:11:39,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:11:40,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:11:40,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:11:40,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:11:40,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:11:40,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 558 [2023-08-30 08:11:40,011 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) [2023-08-30 08:11:40,011 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:11:40,011 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 558 [2023-08-30 08:11:40,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:11:40,629 INFO L130 PetriNetUnfolder]: 4278/7094 cut-off events. [2023-08-30 08:11:40,630 INFO L131 PetriNetUnfolder]: For 3356/3369 co-relation queries the response was YES. [2023-08-30 08:11:40,643 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. [2023-08-30 08:11:40,666 INFO L137 encePairwiseOnDemand]: 554/558 looper letters, 109 selfloop transitions, 3 changer transitions 0/121 dead transitions. [2023-08-30 08:11:40,666 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 121 transitions, 712 flow [2023-08-30 08:11:40,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:11:40,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:11:40,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 917 transitions. [2023-08-30 08:11:40,669 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5477897252090801 [2023-08-30 08:11:40,669 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 917 transitions. [2023-08-30 08:11:40,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 917 transitions. [2023-08-30 08:11:40,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:11:40,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 917 transitions. [2023-08-30 08:11:40,672 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) [2023-08-30 08:11:40,675 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) [2023-08-30 08:11:40,676 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) [2023-08-30 08:11:40,676 INFO L175 Difference]: Start difference. First operand has 111 places, 108 transitions, 580 flow. Second operand 3 states and 917 transitions. [2023-08-30 08:11:40,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 121 transitions, 712 flow [2023-08-30 08:11:40,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 121 transitions, 625 flow, removed 4 selfloop flow, removed 15 redundant places. [2023-08-30 08:11:40,682 INFO L231 Difference]: Finished difference. Result has 94 places, 87 transitions, 327 flow [2023-08-30 08:11:40,682 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} [2023-08-30 08:11:40,683 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 18 predicate places. [2023-08-30 08:11:40,686 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 87 transitions, 327 flow [2023-08-30 08:11:40,686 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) [2023-08-30 08:11:40,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:11:40,687 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:11:40,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 08:11:40,687 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:11:40,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:11:40,688 INFO L85 PathProgramCache]: Analyzing trace with hash -917278505, now seen corresponding path program 1 times [2023-08-30 08:11:40,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:11:40,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544455729] [2023-08-30 08:11:40,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:11:40,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:11:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:11:40,729 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:11:40,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:11:40,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544455729] [2023-08-30 08:11:40,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544455729] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 08:11:40,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193046676] [2023-08-30 08:11:40,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:11:40,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:11:40,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:11:40,733 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 08:11:40,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 08:11:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:11:40,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 08:11:40,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 08:11:40,909 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:11:40,910 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 08:11:40,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193046676] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:11:40,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 08:11:40,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-08-30 08:11:40,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285776178] [2023-08-30 08:11:40,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:11:40,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:11:40,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:11:40,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:11:40,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:11:40,925 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 558 [2023-08-30 08:11:40,926 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) [2023-08-30 08:11:40,926 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:11:40,927 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 558 [2023-08-30 08:11:40,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:11:41,693 INFO L130 PetriNetUnfolder]: 3764/6736 cut-off events. [2023-08-30 08:11:41,694 INFO L131 PetriNetUnfolder]: For 1255/1270 co-relation queries the response was YES. [2023-08-30 08:11:41,718 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. [2023-08-30 08:11:41,740 INFO L137 encePairwiseOnDemand]: 555/558 looper letters, 170 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2023-08-30 08:11:41,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 183 transitions, 948 flow [2023-08-30 08:11:41,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:11:41,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:11:41,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1248 transitions. [2023-08-30 08:11:41,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5591397849462365 [2023-08-30 08:11:41,745 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1248 transitions. [2023-08-30 08:11:41,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1248 transitions. [2023-08-30 08:11:41,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:11:41,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1248 transitions. [2023-08-30 08:11:41,748 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) [2023-08-30 08:11:41,751 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) [2023-08-30 08:11:41,751 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) [2023-08-30 08:11:41,752 INFO L175 Difference]: Start difference. First operand has 94 places, 87 transitions, 327 flow. Second operand 4 states and 1248 transitions. [2023-08-30 08:11:41,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 183 transitions, 948 flow [2023-08-30 08:11:41,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 183 transitions, 944 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:11:41,757 INFO L231 Difference]: Finished difference. Result has 95 places, 86 transitions, 324 flow [2023-08-30 08:11:41,758 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} [2023-08-30 08:11:41,758 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 19 predicate places. [2023-08-30 08:11:41,758 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 86 transitions, 324 flow [2023-08-30 08:11:41,759 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) [2023-08-30 08:11:41,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:11:41,759 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:11:41,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 08:11:41,966 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 [2023-08-30 08:11:41,966 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:11:41,967 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:11:41,967 INFO L85 PathProgramCache]: Analyzing trace with hash -917278443, now seen corresponding path program 1 times [2023-08-30 08:11:41,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:11:41,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633365294] [2023-08-30 08:11:41,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:11:41,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:11:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:11:42,000 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 08:11:42,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:11:42,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633365294] [2023-08-30 08:11:42,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633365294] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:11:42,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:11:42,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:11:42,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401031967] [2023-08-30 08:11:42,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:11:42,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:11:42,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:11:42,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:11:42,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:11:42,013 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 558 [2023-08-30 08:11:42,014 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) [2023-08-30 08:11:42,014 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:11:42,014 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 558 [2023-08-30 08:11:42,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:11:42,458 INFO L130 PetriNetUnfolder]: 3554/6420 cut-off events. [2023-08-30 08:11:42,458 INFO L131 PetriNetUnfolder]: For 1676/1691 co-relation queries the response was YES. [2023-08-30 08:11:42,470 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. [2023-08-30 08:11:42,487 INFO L137 encePairwiseOnDemand]: 554/558 looper letters, 111 selfloop transitions, 4 changer transitions 0/126 dead transitions. [2023-08-30 08:11:42,488 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 126 transitions, 673 flow [2023-08-30 08:11:42,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:11:42,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:11:42,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 917 transitions. [2023-08-30 08:11:42,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5477897252090801 [2023-08-30 08:11:42,491 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 917 transitions. [2023-08-30 08:11:42,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 917 transitions. [2023-08-30 08:11:42,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:11:42,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 917 transitions. [2023-08-30 08:11:42,493 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) [2023-08-30 08:11:42,496 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) [2023-08-30 08:11:42,496 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) [2023-08-30 08:11:42,496 INFO L175 Difference]: Start difference. First operand has 95 places, 86 transitions, 324 flow. Second operand 3 states and 917 transitions. [2023-08-30 08:11:42,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 126 transitions, 673 flow [2023-08-30 08:11:42,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 126 transitions, 670 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 08:11:42,500 INFO L231 Difference]: Finished difference. Result has 95 places, 86 transitions, 333 flow [2023-08-30 08:11:42,500 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} [2023-08-30 08:11:42,501 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 19 predicate places. [2023-08-30 08:11:42,501 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 86 transitions, 333 flow [2023-08-30 08:11:42,502 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) [2023-08-30 08:11:42,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:11:42,502 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:11:42,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 08:11:42,502 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:11:42,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:11:42,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1914224002, now seen corresponding path program 1 times [2023-08-30 08:11:42,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:11:42,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471353965] [2023-08-30 08:11:42,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:11:42,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:11:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:11:42,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:11:42,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:11:42,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471353965] [2023-08-30 08:11:42,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471353965] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:11:42,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:11:42,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:11:42,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726385773] [2023-08-30 08:11:42,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:11:42,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:11:42,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:11:42,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:11:42,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:11:42,556 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 558 [2023-08-30 08:11:42,557 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) [2023-08-30 08:11:42,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:11:42,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 558 [2023-08-30 08:11:42,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:11:43,125 INFO L130 PetriNetUnfolder]: 4137/7171 cut-off events. [2023-08-30 08:11:43,125 INFO L131 PetriNetUnfolder]: For 4724/4733 co-relation queries the response was YES. [2023-08-30 08:11:43,156 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. [2023-08-30 08:11:43,182 INFO L137 encePairwiseOnDemand]: 551/558 looper letters, 115 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2023-08-30 08:11:43,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 128 transitions, 684 flow [2023-08-30 08:11:43,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:11:43,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:11:43,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2023-08-30 08:11:43,185 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5501792114695341 [2023-08-30 08:11:43,185 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 921 transitions. [2023-08-30 08:11:43,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 921 transitions. [2023-08-30 08:11:43,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:11:43,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 921 transitions. [2023-08-30 08:11:43,187 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) [2023-08-30 08:11:43,189 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) [2023-08-30 08:11:43,190 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) [2023-08-30 08:11:43,190 INFO L175 Difference]: Start difference. First operand has 95 places, 86 transitions, 333 flow. Second operand 3 states and 921 transitions. [2023-08-30 08:11:43,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 128 transitions, 684 flow [2023-08-30 08:11:43,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 128 transitions, 676 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:11:43,196 INFO L231 Difference]: Finished difference. Result has 97 places, 87 transitions, 349 flow [2023-08-30 08:11:43,196 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} [2023-08-30 08:11:43,197 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 21 predicate places. [2023-08-30 08:11:43,197 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 87 transitions, 349 flow [2023-08-30 08:11:43,197 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) [2023-08-30 08:11:43,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:11:43,198 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:11:43,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 08:11:43,198 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:11:43,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:11:43,199 INFO L85 PathProgramCache]: Analyzing trace with hash -784742033, now seen corresponding path program 1 times [2023-08-30 08:11:43,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:11:43,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852534072] [2023-08-30 08:11:43,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:11:43,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:11:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:11:44,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:11:44,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:11:44,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852534072] [2023-08-30 08:11:44,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852534072] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:11:44,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:11:44,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:11:44,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13277528] [2023-08-30 08:11:44,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:11:44,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:11:44,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:11:44,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:11:44,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:11:46,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 558 [2023-08-30 08:11:46,318 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) [2023-08-30 08:11:46,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:11:46,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 558 [2023-08-30 08:11:46,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:11:47,320 INFO L130 PetriNetUnfolder]: 4284/7415 cut-off events. [2023-08-30 08:11:47,320 INFO L131 PetriNetUnfolder]: For 3660/3660 co-relation queries the response was YES. [2023-08-30 08:11:47,335 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. [2023-08-30 08:11:47,357 INFO L137 encePairwiseOnDemand]: 541/558 looper letters, 79 selfloop transitions, 28 changer transitions 1/115 dead transitions. [2023-08-30 08:11:47,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 115 transitions, 675 flow [2023-08-30 08:11:47,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 08:11:47,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 08:11:47,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3595 transitions. [2023-08-30 08:11:47,367 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4295101553166069 [2023-08-30 08:11:47,367 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3595 transitions. [2023-08-30 08:11:47,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3595 transitions. [2023-08-30 08:11:47,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:11:47,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3595 transitions. [2023-08-30 08:11:47,377 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) [2023-08-30 08:11:47,388 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) [2023-08-30 08:11:47,389 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) [2023-08-30 08:11:47,390 INFO L175 Difference]: Start difference. First operand has 97 places, 87 transitions, 349 flow. Second operand 15 states and 3595 transitions. [2023-08-30 08:11:47,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 115 transitions, 675 flow [2023-08-30 08:11:47,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 115 transitions, 671 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:11:47,398 INFO L231 Difference]: Finished difference. Result has 118 places, 104 transitions, 525 flow [2023-08-30 08:11:47,398 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} [2023-08-30 08:11:47,398 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 42 predicate places. [2023-08-30 08:11:47,399 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 104 transitions, 525 flow [2023-08-30 08:11:47,400 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) [2023-08-30 08:11:47,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:11:47,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:11:47,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 08:11:47,400 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:11:47,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:11:47,401 INFO L85 PathProgramCache]: Analyzing trace with hash -784742058, now seen corresponding path program 1 times [2023-08-30 08:11:47,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:11:47,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111463284] [2023-08-30 08:11:47,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:11:47,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:11:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:11:47,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:11:47,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:11:47,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111463284] [2023-08-30 08:11:47,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111463284] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:11:47,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:11:47,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:11:47,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072112081] [2023-08-30 08:11:47,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:11:47,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:11:47,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:11:47,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:11:47,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:11:49,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 558 [2023-08-30 08:11:49,282 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) [2023-08-30 08:11:49,282 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:11:49,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 558 [2023-08-30 08:11:49,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:11:51,755 INFO L130 PetriNetUnfolder]: 13635/23372 cut-off events. [2023-08-30 08:11:51,755 INFO L131 PetriNetUnfolder]: For 9268/9268 co-relation queries the response was YES. [2023-08-30 08:11:51,867 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 166983 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. [2023-08-30 08:11:51,931 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 363 selfloop transitions, 62 changer transitions 3/435 dead transitions. [2023-08-30 08:11:51,931 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 435 transitions, 2434 flow [2023-08-30 08:11:51,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 08:11:51,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 08:11:51,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4649 transitions. [2023-08-30 08:11:51,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46286340103544404 [2023-08-30 08:11:51,943 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4649 transitions. [2023-08-30 08:11:51,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4649 transitions. [2023-08-30 08:11:51,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:11:51,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4649 transitions. [2023-08-30 08:11:51,953 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) [2023-08-30 08:11:51,965 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) [2023-08-30 08:11:51,967 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) [2023-08-30 08:11:51,967 INFO L175 Difference]: Start difference. First operand has 118 places, 104 transitions, 525 flow. Second operand 18 states and 4649 transitions. [2023-08-30 08:11:51,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 435 transitions, 2434 flow [2023-08-30 08:11:52,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 435 transitions, 2372 flow, removed 18 selfloop flow, removed 6 redundant places. [2023-08-30 08:11:52,165 INFO L231 Difference]: Finished difference. Result has 136 places, 134 transitions, 748 flow [2023-08-30 08:11:52,166 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} [2023-08-30 08:11:52,166 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 60 predicate places. [2023-08-30 08:11:52,167 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 134 transitions, 748 flow [2023-08-30 08:11:52,168 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) [2023-08-30 08:11:52,168 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:11:52,168 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] [2023-08-30 08:11:52,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-30 08:11:52,168 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:11:52,185 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:11:52,185 INFO L85 PathProgramCache]: Analyzing trace with hash 2011241202, now seen corresponding path program 1 times [2023-08-30 08:11:52,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:11:52,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542513718] [2023-08-30 08:11:52,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:11:52,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:11:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:11:53,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:11:53,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:11:53,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542513718] [2023-08-30 08:11:53,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542513718] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:11:53,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:11:53,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-30 08:11:53,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723586132] [2023-08-30 08:11:53,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:11:53,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-30 08:11:53,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:11:53,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-30 08:11:53,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2023-08-30 08:11:54,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 558 [2023-08-30 08:11:54,371 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) [2023-08-30 08:11:54,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:11:54,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 558 [2023-08-30 08:11:54,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:11:56,802 INFO L130 PetriNetUnfolder]: 13754/23713 cut-off events. [2023-08-30 08:11:56,802 INFO L131 PetriNetUnfolder]: For 13625/13625 co-relation queries the response was YES. [2023-08-30 08:11:56,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62000 conditions, 23713 events. 13754/23713 cut-off events. For 13625/13625 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 171183 event pairs, 9021 based on Foata normal form. 0/19476 useless extension candidates. Maximal degree in co-relation 61842. Up to 20753 conditions per place. [2023-08-30 08:11:56,942 INFO L137 encePairwiseOnDemand]: 543/558 looper letters, 200 selfloop transitions, 38 changer transitions 3/248 dead transitions. [2023-08-30 08:11:56,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 248 transitions, 1749 flow [2023-08-30 08:11:56,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:11:56,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:11:56,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3387 transitions. [2023-08-30 08:11:56,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43356374807987713 [2023-08-30 08:11:56,949 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3387 transitions. [2023-08-30 08:11:56,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3387 transitions. [2023-08-30 08:11:56,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:11:56,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3387 transitions. [2023-08-30 08:11:56,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 241.92857142857142) internal successors, (3387), 14 states have internal predecessors, (3387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:11:56,964 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) [2023-08-30 08:11:56,966 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) [2023-08-30 08:11:56,966 INFO L175 Difference]: Start difference. First operand has 136 places, 134 transitions, 748 flow. Second operand 14 states and 3387 transitions. [2023-08-30 08:11:56,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 248 transitions, 1749 flow [2023-08-30 08:11:57,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 248 transitions, 1698 flow, removed 15 selfloop flow, removed 7 redundant places. [2023-08-30 08:11:57,009 INFO L231 Difference]: Finished difference. Result has 148 places, 140 transitions, 853 flow [2023-08-30 08:11:57,009 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=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=853, PETRI_PLACES=148, PETRI_TRANSITIONS=140} [2023-08-30 08:11:57,009 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 72 predicate places. [2023-08-30 08:11:57,009 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 140 transitions, 853 flow [2023-08-30 08:11:57,010 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) [2023-08-30 08:11:57,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:11:57,011 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] [2023-08-30 08:11:57,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-30 08:11:57,011 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:11:57,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:11:57,011 INFO L85 PathProgramCache]: Analyzing trace with hash 317311393, now seen corresponding path program 1 times [2023-08-30 08:11:57,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:11:57,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463681508] [2023-08-30 08:11:57,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:11:57,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:11:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:11:57,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:11:57,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:11:57,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463681508] [2023-08-30 08:11:57,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463681508] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:11:57,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:11:57,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:11:57,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809973896] [2023-08-30 08:11:57,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:11:57,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:11:57,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:11:57,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:11:57,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:11:58,828 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 558 [2023-08-30 08:11:58,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 140 transitions, 853 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) [2023-08-30 08:11:58,831 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:11:58,831 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 558 [2023-08-30 08:11:58,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:12:02,568 INFO L130 PetriNetUnfolder]: 18414/31350 cut-off events. [2023-08-30 08:12:02,568 INFO L131 PetriNetUnfolder]: For 17690/17690 co-relation queries the response was YES. [2023-08-30 08:12:02,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82558 conditions, 31350 events. 18414/31350 cut-off events. For 17690/17690 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 224909 event pairs, 6700 based on Foata normal form. 103/25666 useless extension candidates. Maximal degree in co-relation 82399. Up to 16871 conditions per place. [2023-08-30 08:12:02,810 INFO L137 encePairwiseOnDemand]: 542/558 looper letters, 361 selfloop transitions, 67 changer transitions 0/435 dead transitions. [2023-08-30 08:12:02,811 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 435 transitions, 2680 flow [2023-08-30 08:12:02,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 08:12:02,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 08:12:02,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3856 transitions. [2023-08-30 08:12:02,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46069295101553165 [2023-08-30 08:12:02,817 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3856 transitions. [2023-08-30 08:12:02,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3856 transitions. [2023-08-30 08:12:02,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:12:02,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3856 transitions. [2023-08-30 08:12:02,824 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) [2023-08-30 08:12:02,831 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) [2023-08-30 08:12:02,833 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) [2023-08-30 08:12:02,833 INFO L175 Difference]: Start difference. First operand has 148 places, 140 transitions, 853 flow. Second operand 15 states and 3856 transitions. [2023-08-30 08:12:02,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 435 transitions, 2680 flow [2023-08-30 08:12:02,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 435 transitions, 2629 flow, removed 10 selfloop flow, removed 5 redundant places. [2023-08-30 08:12:02,901 INFO L231 Difference]: Finished difference. Result has 162 places, 162 transitions, 1130 flow [2023-08-30 08:12:02,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1130, PETRI_PLACES=162, PETRI_TRANSITIONS=162} [2023-08-30 08:12:02,902 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 86 predicate places. [2023-08-30 08:12:02,903 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 162 transitions, 1130 flow [2023-08-30 08:12:02,903 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) [2023-08-30 08:12:02,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:12:02,904 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] [2023-08-30 08:12:02,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-30 08:12:02,904 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:12:02,904 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:12:02,904 INFO L85 PathProgramCache]: Analyzing trace with hash 317311418, now seen corresponding path program 2 times [2023-08-30 08:12:02,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:12:02,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90137057] [2023-08-30 08:12:02,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:12:02,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:12:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:12:03,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:12:03,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:12:03,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90137057] [2023-08-30 08:12:03,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90137057] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:12:03,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:12:03,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-30 08:12:03,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957473609] [2023-08-30 08:12:03,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:12:03,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-30 08:12:03,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:12:03,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-30 08:12:03,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2023-08-30 08:12:04,948 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 558 [2023-08-30 08:12:04,950 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 162 transitions, 1130 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) [2023-08-30 08:12:04,950 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:12:04,951 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 558 [2023-08-30 08:12:04,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:12:08,291 INFO L130 PetriNetUnfolder]: 18562/32039 cut-off events. [2023-08-30 08:12:08,291 INFO L131 PetriNetUnfolder]: For 25986/25986 co-relation queries the response was YES. [2023-08-30 08:12:08,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88642 conditions, 32039 events. 18562/32039 cut-off events. For 25986/25986 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 232967 event pairs, 9506 based on Foata normal form. 26/26414 useless extension candidates. Maximal degree in co-relation 60616. Up to 27692 conditions per place. [2023-08-30 08:12:08,719 INFO L137 encePairwiseOnDemand]: 543/558 looper letters, 222 selfloop transitions, 44 changer transitions 3/276 dead transitions. [2023-08-30 08:12:08,719 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 276 transitions, 2200 flow [2023-08-30 08:12:08,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:12:08,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:12:08,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3384 transitions. [2023-08-30 08:12:08,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43317972350230416 [2023-08-30 08:12:08,723 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3384 transitions. [2023-08-30 08:12:08,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3384 transitions. [2023-08-30 08:12:08,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:12:08,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3384 transitions. [2023-08-30 08:12:08,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 241.71428571428572) internal successors, (3384), 14 states have internal predecessors, (3384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:12:08,733 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) [2023-08-30 08:12:08,734 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) [2023-08-30 08:12:08,734 INFO L175 Difference]: Start difference. First operand has 162 places, 162 transitions, 1130 flow. Second operand 14 states and 3384 transitions. [2023-08-30 08:12:08,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 276 transitions, 2200 flow [2023-08-30 08:12:08,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 276 transitions, 2169 flow, removed 2 selfloop flow, removed 5 redundant places. [2023-08-30 08:12:08,830 INFO L231 Difference]: Finished difference. Result has 176 places, 168 transitions, 1292 flow [2023-08-30 08:12:08,830 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1101, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1292, PETRI_PLACES=176, PETRI_TRANSITIONS=168} [2023-08-30 08:12:08,831 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 100 predicate places. [2023-08-30 08:12:08,831 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 168 transitions, 1292 flow [2023-08-30 08:12:08,832 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) [2023-08-30 08:12:08,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:12:08,832 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] [2023-08-30 08:12:08,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-30 08:12:08,832 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:12:08,833 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:12:08,833 INFO L85 PathProgramCache]: Analyzing trace with hash -643986808, now seen corresponding path program 3 times [2023-08-30 08:12:08,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:12:08,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716113827] [2023-08-30 08:12:08,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:12:08,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:12:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:12:10,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:12:10,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:12:10,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716113827] [2023-08-30 08:12:10,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716113827] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:12:10,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:12:10,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-30 08:12:10,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061939747] [2023-08-30 08:12:10,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:12:10,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-30 08:12:10,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:12:10,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-30 08:12:10,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-08-30 08:12:11,396 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 558 [2023-08-30 08:12:11,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 168 transitions, 1292 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) [2023-08-30 08:12:11,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:12:11,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 558 [2023-08-30 08:12:11,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:12:15,219 INFO L130 PetriNetUnfolder]: 18741/32472 cut-off events. [2023-08-30 08:12:15,220 INFO L131 PetriNetUnfolder]: For 29444/29452 co-relation queries the response was YES. [2023-08-30 08:12:15,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91148 conditions, 32472 events. 18741/32472 cut-off events. For 29444/29452 co-relation queries the response was YES. Maximal size of possible extension queue 654. Compared 238400 event pairs, 9441 based on Foata normal form. 26/26826 useless extension candidates. Maximal degree in co-relation 90979. Up to 27242 conditions per place. [2023-08-30 08:12:15,534 INFO L137 encePairwiseOnDemand]: 542/558 looper letters, 233 selfloop transitions, 52 changer transitions 3/295 dead transitions. [2023-08-30 08:12:15,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 295 transitions, 2465 flow [2023-08-30 08:12:15,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 08:12:15,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 08:12:15,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3855 transitions. [2023-08-30 08:12:15,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43178763440860213 [2023-08-30 08:12:15,537 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3855 transitions. [2023-08-30 08:12:15,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3855 transitions. [2023-08-30 08:12:15,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:12:15,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3855 transitions. [2023-08-30 08:12:15,671 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) [2023-08-30 08:12:15,678 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) [2023-08-30 08:12:15,679 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) [2023-08-30 08:12:15,679 INFO L175 Difference]: Start difference. First operand has 176 places, 168 transitions, 1292 flow. Second operand 16 states and 3855 transitions. [2023-08-30 08:12:15,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 295 transitions, 2465 flow [2023-08-30 08:12:15,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 295 transitions, 2407 flow, removed 7 selfloop flow, removed 7 redundant places. [2023-08-30 08:12:15,786 INFO L231 Difference]: Finished difference. Result has 187 places, 173 transitions, 1420 flow [2023-08-30 08:12:15,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1238, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1420, PETRI_PLACES=187, PETRI_TRANSITIONS=173} [2023-08-30 08:12:15,787 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 111 predicate places. [2023-08-30 08:12:15,787 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 173 transitions, 1420 flow [2023-08-30 08:12:15,788 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) [2023-08-30 08:12:15,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:12:15,788 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] [2023-08-30 08:12:15,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-30 08:12:15,788 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:12:15,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:12:15,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1443120322, now seen corresponding path program 4 times [2023-08-30 08:12:15,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:12:15,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529177600] [2023-08-30 08:12:15,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:12:15,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:12:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:12:16,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:12:16,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:12:16,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529177600] [2023-08-30 08:12:16,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529177600] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:12:16,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:12:16,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-30 08:12:16,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745494741] [2023-08-30 08:12:16,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:12:16,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-08-30 08:12:16,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:12:16,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-08-30 08:12:16,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2023-08-30 08:12:18,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 558 [2023-08-30 08:12:18,049 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 173 transitions, 1420 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) [2023-08-30 08:12:18,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:12:18,049 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 558 [2023-08-30 08:12:18,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:12:21,867 INFO L130 PetriNetUnfolder]: 18751/32554 cut-off events. [2023-08-30 08:12:21,868 INFO L131 PetriNetUnfolder]: For 32951/32959 co-relation queries the response was YES. [2023-08-30 08:12:22,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92226 conditions, 32554 events. 18751/32554 cut-off events. For 32951/32959 co-relation queries the response was YES. Maximal size of possible extension queue 655. Compared 239135 event pairs, 9187 based on Foata normal form. 26/26897 useless extension candidates. Maximal degree in co-relation 92054. Up to 27122 conditions per place. [2023-08-30 08:12:22,145 INFO L137 encePairwiseOnDemand]: 543/558 looper letters, 230 selfloop transitions, 49 changer transitions 3/289 dead transitions. [2023-08-30 08:12:22,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 289 transitions, 2526 flow [2023-08-30 08:12:22,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 08:12:22,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 08:12:22,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3617 transitions. [2023-08-30 08:12:22,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43213859020310635 [2023-08-30 08:12:22,149 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3617 transitions. [2023-08-30 08:12:22,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3617 transitions. [2023-08-30 08:12:22,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:12:22,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3617 transitions. [2023-08-30 08:12:22,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 241.13333333333333) internal successors, (3617), 15 states have internal predecessors, (3617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:12:22,158 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) [2023-08-30 08:12:22,159 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) [2023-08-30 08:12:22,159 INFO L175 Difference]: Start difference. First operand has 187 places, 173 transitions, 1420 flow. Second operand 15 states and 3617 transitions. [2023-08-30 08:12:22,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 289 transitions, 2526 flow [2023-08-30 08:12:22,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 289 transitions, 2429 flow, removed 11 selfloop flow, removed 11 redundant places. [2023-08-30 08:12:22,263 INFO L231 Difference]: Finished difference. Result has 192 places, 175 transitions, 1474 flow [2023-08-30 08:12:22,264 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1327, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1474, PETRI_PLACES=192, PETRI_TRANSITIONS=175} [2023-08-30 08:12:22,264 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 116 predicate places. [2023-08-30 08:12:22,264 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 175 transitions, 1474 flow [2023-08-30 08:12:22,265 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) [2023-08-30 08:12:22,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:12:22,265 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:12:22,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-30 08:12:22,265 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:12:22,265 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:12:22,265 INFO L85 PathProgramCache]: Analyzing trace with hash 452925267, now seen corresponding path program 1 times [2023-08-30 08:12:22,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:12:22,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285754642] [2023-08-30 08:12:22,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:12:22,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:12:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:12:22,304 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 08:12:22,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:12:22,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285754642] [2023-08-30 08:12:22,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285754642] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:12:22,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:12:22,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:12:22,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909094067] [2023-08-30 08:12:22,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:12:22,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:12:22,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:12:22,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:12:22,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:12:22,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 558 [2023-08-30 08:12:22,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 175 transitions, 1474 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) [2023-08-30 08:12:22,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:12:22,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 558 [2023-08-30 08:12:22,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:12:25,503 INFO L130 PetriNetUnfolder]: 16594/28910 cut-off events. [2023-08-30 08:12:25,504 INFO L131 PetriNetUnfolder]: For 34433/34442 co-relation queries the response was YES. [2023-08-30 08:12:25,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83079 conditions, 28910 events. 16594/28910 cut-off events. For 34433/34442 co-relation queries the response was YES. Maximal size of possible extension queue 608. Compared 208800 event pairs, 6894 based on Foata normal form. 9/24561 useless extension candidates. Maximal degree in co-relation 82905. Up to 21524 conditions per place. [2023-08-30 08:12:25,784 INFO L137 encePairwiseOnDemand]: 553/558 looper letters, 186 selfloop transitions, 4 changer transitions 0/206 dead transitions. [2023-08-30 08:12:25,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 206 transitions, 1985 flow [2023-08-30 08:12:25,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:12:25,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:12:25,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 897 transitions. [2023-08-30 08:12:25,786 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.53584229390681 [2023-08-30 08:12:25,786 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 897 transitions. [2023-08-30 08:12:25,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 897 transitions. [2023-08-30 08:12:25,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:12:25,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 897 transitions. [2023-08-30 08:12:25,787 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) [2023-08-30 08:12:25,788 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) [2023-08-30 08:12:25,788 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) [2023-08-30 08:12:25,789 INFO L175 Difference]: Start difference. First operand has 192 places, 175 transitions, 1474 flow. Second operand 3 states and 897 transitions. [2023-08-30 08:12:25,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 206 transitions, 1985 flow [2023-08-30 08:12:25,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 206 transitions, 1917 flow, removed 4 selfloop flow, removed 10 redundant places. [2023-08-30 08:12:25,891 INFO L231 Difference]: Finished difference. Result has 183 places, 174 transitions, 1414 flow [2023-08-30 08:12:25,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1398, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1414, PETRI_PLACES=183, PETRI_TRANSITIONS=174} [2023-08-30 08:12:25,891 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 107 predicate places. [2023-08-30 08:12:25,892 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 174 transitions, 1414 flow [2023-08-30 08:12:25,892 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) [2023-08-30 08:12:25,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:12:25,892 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:12:25,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-30 08:12:25,893 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:12:25,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:12:25,893 INFO L85 PathProgramCache]: Analyzing trace with hash 452925224, now seen corresponding path program 1 times [2023-08-30 08:12:25,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:12:25,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432016116] [2023-08-30 08:12:25,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:12:25,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:12:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:12:25,931 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:12:25,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:12:25,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432016116] [2023-08-30 08:12:25,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432016116] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:12:25,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:12:25,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:12:25,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793521844] [2023-08-30 08:12:25,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:12:25,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:12:25,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:12:25,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:12:25,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:12:25,946 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 558 [2023-08-30 08:12:25,947 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 174 transitions, 1414 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) [2023-08-30 08:12:25,947 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:12:25,947 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 558 [2023-08-30 08:12:25,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:12:28,795 INFO L130 PetriNetUnfolder]: 14864/26128 cut-off events. [2023-08-30 08:12:28,795 INFO L131 PetriNetUnfolder]: For 36364/36373 co-relation queries the response was YES. [2023-08-30 08:12:28,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76420 conditions, 26128 events. 14864/26128 cut-off events. For 36364/36373 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 186173 event pairs, 7692 based on Foata normal form. 1019/23566 useless extension candidates. Maximal degree in co-relation 76247. Up to 22832 conditions per place. [2023-08-30 08:12:29,003 INFO L137 encePairwiseOnDemand]: 555/558 looper letters, 164 selfloop transitions, 1 changer transitions 0/181 dead transitions. [2023-08-30 08:12:29,003 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 181 transitions, 1784 flow [2023-08-30 08:12:29,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:12:29,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:12:29,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 881 transitions. [2023-08-30 08:12:29,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.526284348864994 [2023-08-30 08:12:29,005 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 881 transitions. [2023-08-30 08:12:29,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 881 transitions. [2023-08-30 08:12:29,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:12:29,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 881 transitions. [2023-08-30 08:12:29,006 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) [2023-08-30 08:12:29,007 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) [2023-08-30 08:12:29,007 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) [2023-08-30 08:12:29,007 INFO L175 Difference]: Start difference. First operand has 183 places, 174 transitions, 1414 flow. Second operand 3 states and 881 transitions. [2023-08-30 08:12:29,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 181 transitions, 1784 flow [2023-08-30 08:12:29,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 181 transitions, 1780 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:12:29,093 INFO L231 Difference]: Finished difference. Result has 182 places, 172 transitions, 1404 flow [2023-08-30 08:12:29,093 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1402, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1404, PETRI_PLACES=182, PETRI_TRANSITIONS=172} [2023-08-30 08:12:29,093 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 106 predicate places. [2023-08-30 08:12:29,093 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 172 transitions, 1404 flow [2023-08-30 08:12:29,094 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) [2023-08-30 08:12:29,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:12:29,094 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] [2023-08-30 08:12:29,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-30 08:12:29,094 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:12:29,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:12:29,094 INFO L85 PathProgramCache]: Analyzing trace with hash -742070962, now seen corresponding path program 1 times [2023-08-30 08:12:29,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:12:29,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146795175] [2023-08-30 08:12:29,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:12:29,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:12:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:12:30,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:12:30,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:12:30,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146795175] [2023-08-30 08:12:30,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146795175] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:12:30,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:12:30,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:12:30,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353594861] [2023-08-30 08:12:30,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:12:30,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:12:30,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:12:30,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:12:30,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:12:31,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 558 [2023-08-30 08:12:31,912 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 172 transitions, 1404 flow. Second operand has 13 states, 13 states have (on average 230.69230769230768) internal successors, (2999), 13 states have internal predecessors, (2999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:12:31,912 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:12:31,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 558 [2023-08-30 08:12:31,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:12:35,482 INFO L130 PetriNetUnfolder]: 16172/28152 cut-off events. [2023-08-30 08:12:35,483 INFO L131 PetriNetUnfolder]: For 34145/34145 co-relation queries the response was YES. [2023-08-30 08:12:35,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82595 conditions, 28152 events. 16172/28152 cut-off events. For 34145/34145 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 199476 event pairs, 12434 based on Foata normal form. 0/24474 useless extension candidates. Maximal degree in co-relation 82421. Up to 24976 conditions per place. [2023-08-30 08:12:35,767 INFO L137 encePairwiseOnDemand]: 542/558 looper letters, 200 selfloop transitions, 36 changer transitions 3/246 dead transitions. [2023-08-30 08:12:35,767 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 246 transitions, 2294 flow [2023-08-30 08:12:35,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:12:35,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:12:35,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3111 transitions. [2023-08-30 08:12:35,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42886683209263854 [2023-08-30 08:12:35,771 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3111 transitions. [2023-08-30 08:12:35,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3111 transitions. [2023-08-30 08:12:35,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:12:35,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3111 transitions. [2023-08-30 08:12:35,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 239.30769230769232) internal successors, (3111), 13 states have internal predecessors, (3111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:12:35,779 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) [2023-08-30 08:12:35,780 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) [2023-08-30 08:12:35,780 INFO L175 Difference]: Start difference. First operand has 182 places, 172 transitions, 1404 flow. Second operand 13 states and 3111 transitions. [2023-08-30 08:12:35,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 246 transitions, 2294 flow [2023-08-30 08:12:36,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 246 transitions, 2292 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:12:36,085 INFO L231 Difference]: Finished difference. Result has 199 places, 183 transitions, 1649 flow [2023-08-30 08:12:36,085 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1403, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1649, PETRI_PLACES=199, PETRI_TRANSITIONS=183} [2023-08-30 08:12:36,086 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 123 predicate places. [2023-08-30 08:12:36,086 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 183 transitions, 1649 flow [2023-08-30 08:12:36,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 230.69230769230768) internal successors, (2999), 13 states have internal predecessors, (2999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:12:36,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:12:36,087 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] [2023-08-30 08:12:36,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-30 08:12:36,087 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:12:36,087 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:12:36,087 INFO L85 PathProgramCache]: Analyzing trace with hash -742070961, now seen corresponding path program 1 times [2023-08-30 08:12:36,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:12:36,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063879844] [2023-08-30 08:12:36,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:12:36,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:12:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:12:36,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:12:36,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:12:36,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063879844] [2023-08-30 08:12:36,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063879844] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:12:36,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:12:36,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:12:36,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659776732] [2023-08-30 08:12:36,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:12:36,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:12:36,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:12:36,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:12:36,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:12:37,549 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 558 [2023-08-30 08:12:37,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 183 transitions, 1649 flow. Second operand has 12 states, 12 states have (on average 231.83333333333334) internal successors, (2782), 12 states have internal predecessors, (2782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:12:37,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:12:37,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 558 [2023-08-30 08:12:37,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:12:44,314 INFO L130 PetriNetUnfolder]: 30579/52828 cut-off events. [2023-08-30 08:12:44,314 INFO L131 PetriNetUnfolder]: For 60416/60426 co-relation queries the response was YES. [2023-08-30 08:12:45,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155550 conditions, 52828 events. 30579/52828 cut-off events. For 60416/60426 co-relation queries the response was YES. Maximal size of possible extension queue 1012. Compared 410874 event pairs, 6879 based on Foata normal form. 0/47245 useless extension candidates. Maximal degree in co-relation 155368. Up to 12053 conditions per place. [2023-08-30 08:12:45,229 INFO L137 encePairwiseOnDemand]: 534/558 looper letters, 415 selfloop transitions, 155 changer transitions 3/580 dead transitions. [2023-08-30 08:12:45,229 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 580 transitions, 4681 flow [2023-08-30 08:12:45,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 08:12:45,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 08:12:45,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4503 transitions. [2023-08-30 08:12:45,235 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4483273596176822 [2023-08-30 08:12:45,235 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4503 transitions. [2023-08-30 08:12:45,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4503 transitions. [2023-08-30 08:12:45,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:12:45,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4503 transitions. [2023-08-30 08:12:45,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.16666666666666) internal successors, (4503), 18 states have internal predecessors, (4503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:12:45,252 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) [2023-08-30 08:12:45,253 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) [2023-08-30 08:12:45,253 INFO L175 Difference]: Start difference. First operand has 199 places, 183 transitions, 1649 flow. Second operand 18 states and 4503 transitions. [2023-08-30 08:12:45,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 580 transitions, 4681 flow [2023-08-30 08:12:45,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 580 transitions, 4634 flow, removed 5 selfloop flow, removed 6 redundant places. [2023-08-30 08:12:45,598 INFO L231 Difference]: Finished difference. Result has 217 places, 280 transitions, 2965 flow [2023-08-30 08:12:45,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=1603, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2965, PETRI_PLACES=217, PETRI_TRANSITIONS=280} [2023-08-30 08:12:45,599 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 141 predicate places. [2023-08-30 08:12:45,599 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 280 transitions, 2965 flow [2023-08-30 08:12:45,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 231.83333333333334) internal successors, (2782), 12 states have internal predecessors, (2782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:12:45,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:12:45,600 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] [2023-08-30 08:12:45,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-30 08:12:45,600 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:12:45,600 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:12:45,601 INFO L85 PathProgramCache]: Analyzing trace with hash -2108738361, now seen corresponding path program 1 times [2023-08-30 08:12:45,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:12:45,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869677266] [2023-08-30 08:12:45,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:12:45,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:12:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:12:46,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:12:46,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:12:46,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869677266] [2023-08-30 08:12:46,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869677266] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:12:46,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:12:46,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:12:46,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001506932] [2023-08-30 08:12:46,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:12:46,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:12:46,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:12:46,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:12:46,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:12:48,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 558 [2023-08-30 08:12:48,060 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 280 transitions, 2965 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) [2023-08-30 08:12:48,061 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:12:48,061 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 558 [2023-08-30 08:12:48,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:12:55,855 INFO L130 PetriNetUnfolder]: 31368/54385 cut-off events. [2023-08-30 08:12:55,855 INFO L131 PetriNetUnfolder]: For 110576/110576 co-relation queries the response was YES. [2023-08-30 08:12:56,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182710 conditions, 54385 events. 31368/54385 cut-off events. For 110576/110576 co-relation queries the response was YES. Maximal size of possible extension queue 1017. Compared 427019 event pairs, 22991 based on Foata normal form. 52/49693 useless extension candidates. Maximal degree in co-relation 182520. Up to 47751 conditions per place. [2023-08-30 08:12:56,874 INFO L137 encePairwiseOnDemand]: 544/558 looper letters, 343 selfloop transitions, 44 changer transitions 3/397 dead transitions. [2023-08-30 08:12:56,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 397 transitions, 4437 flow [2023-08-30 08:12:56,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:12:56,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:12:56,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3202 transitions. [2023-08-30 08:12:56,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44141163496002206 [2023-08-30 08:12:56,879 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3202 transitions. [2023-08-30 08:12:56,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3202 transitions. [2023-08-30 08:12:56,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:12:56,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3202 transitions. [2023-08-30 08:12:56,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 246.30769230769232) internal successors, (3202), 13 states have internal predecessors, (3202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:12:56,888 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) [2023-08-30 08:12:56,888 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) [2023-08-30 08:12:56,888 INFO L175 Difference]: Start difference. First operand has 217 places, 280 transitions, 2965 flow. Second operand 13 states and 3202 transitions. [2023-08-30 08:12:56,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 397 transitions, 4437 flow [2023-08-30 08:12:57,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 397 transitions, 4340 flow, removed 29 selfloop flow, removed 10 redundant places. [2023-08-30 08:12:57,317 INFO L231 Difference]: Finished difference. Result has 227 places, 288 transitions, 3170 flow [2023-08-30 08:12:57,317 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2874, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3170, PETRI_PLACES=227, PETRI_TRANSITIONS=288} [2023-08-30 08:12:57,318 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 151 predicate places. [2023-08-30 08:12:57,318 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 288 transitions, 3170 flow [2023-08-30 08:12:57,318 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) [2023-08-30 08:12:57,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:12:57,318 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] [2023-08-30 08:12:57,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-30 08:12:57,319 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:12:57,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:12:57,319 INFO L85 PathProgramCache]: Analyzing trace with hash 426436787, now seen corresponding path program 2 times [2023-08-30 08:12:57,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:12:57,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821155847] [2023-08-30 08:12:57,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:12:57,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:12:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:12:58,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:12:58,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:12:58,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821155847] [2023-08-30 08:12:58,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821155847] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:12:58,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:12:58,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:12:58,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248789665] [2023-08-30 08:12:58,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:12:58,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:12:58,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:12:58,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:12:58,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:12:58,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 558 [2023-08-30 08:12:58,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 288 transitions, 3170 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) [2023-08-30 08:12:58,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:12:58,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 558 [2023-08-30 08:12:58,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:13:06,575 INFO L130 PetriNetUnfolder]: 31096/54039 cut-off events. [2023-08-30 08:13:06,576 INFO L131 PetriNetUnfolder]: For 107566/107566 co-relation queries the response was YES. [2023-08-30 08:13:07,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180047 conditions, 54039 events. 31096/54039 cut-off events. For 107566/107566 co-relation queries the response was YES. Maximal size of possible extension queue 1002. Compared 424022 event pairs, 18501 based on Foata normal form. 104/49043 useless extension candidates. Maximal degree in co-relation 179855. Up to 45395 conditions per place. [2023-08-30 08:13:07,375 INFO L137 encePairwiseOnDemand]: 545/558 looper letters, 314 selfloop transitions, 51 changer transitions 3/375 dead transitions. [2023-08-30 08:13:07,375 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 375 transitions, 4322 flow [2023-08-30 08:13:07,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 08:13:07,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 08:13:07,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2759 transitions. [2023-08-30 08:13:07,378 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4494949494949495 [2023-08-30 08:13:07,379 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2759 transitions. [2023-08-30 08:13:07,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2759 transitions. [2023-08-30 08:13:07,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:13:07,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2759 transitions. [2023-08-30 08:13:07,381 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) [2023-08-30 08:13:07,385 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) [2023-08-30 08:13:07,385 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) [2023-08-30 08:13:07,385 INFO L175 Difference]: Start difference. First operand has 227 places, 288 transitions, 3170 flow. Second operand 11 states and 2759 transitions. [2023-08-30 08:13:07,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 375 transitions, 4322 flow [2023-08-30 08:13:07,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 375 transitions, 4283 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-08-30 08:13:07,747 INFO L231 Difference]: Finished difference. Result has 234 places, 289 transitions, 3264 flow [2023-08-30 08:13:07,748 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=3133, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3264, PETRI_PLACES=234, PETRI_TRANSITIONS=289} [2023-08-30 08:13:07,748 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 158 predicate places. [2023-08-30 08:13:07,748 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 289 transitions, 3264 flow [2023-08-30 08:13:07,749 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) [2023-08-30 08:13:07,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:13:07,749 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] [2023-08-30 08:13:07,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-30 08:13:07,749 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting t1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:13:07,750 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:13:07,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1094065461, now seen corresponding path program 3 times [2023-08-30 08:13:07,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:13:07,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397826838] [2023-08-30 08:13:07,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:13:07,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:13:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:13:08,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:13:08,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:13:08,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397826838] [2023-08-30 08:13:08,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397826838] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:13:08,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:13:08,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:13:08,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893535232] [2023-08-30 08:13:08,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:13:08,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:13:08,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:13:08,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:13:08,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:13:09,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 558 [2023-08-30 08:13:09,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 289 transitions, 3264 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) [2023-08-30 08:13:09,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:13:09,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 558 [2023-08-30 08:13:09,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:13:18,130 INFO L130 PetriNetUnfolder]: 32375/56119 cut-off events. [2023-08-30 08:13:18,130 INFO L131 PetriNetUnfolder]: For 114671/114675 co-relation queries the response was YES. [2023-08-30 08:13:18,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187416 conditions, 56119 events. 32375/56119 cut-off events. For 114671/114675 co-relation queries the response was YES. Maximal size of possible extension queue 1010. Compared 441346 event pairs, 13081 based on Foata normal form. 100/51021 useless extension candidates. Maximal degree in co-relation 187223. Up to 44526 conditions per place. [2023-08-30 08:13:18,964 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 357 selfloop transitions, 68 changer transitions 0/432 dead transitions. [2023-08-30 08:13:18,964 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 432 transitions, 4815 flow [2023-08-30 08:13:18,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:13:18,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:13:18,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3227 transitions. [2023-08-30 08:13:18,968 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4448580093741384 [2023-08-30 08:13:18,968 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3227 transitions. [2023-08-30 08:13:18,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3227 transitions. [2023-08-30 08:13:18,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:13:18,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3227 transitions. [2023-08-30 08:13:18,972 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) [2023-08-30 08:13:18,976 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) [2023-08-30 08:13:18,977 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) [2023-08-30 08:13:18,977 INFO L175 Difference]: Start difference. First operand has 234 places, 289 transitions, 3264 flow. Second operand 13 states and 3227 transitions. [2023-08-30 08:13:18,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 432 transitions, 4815 flow [2023-08-30 08:13:19,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 432 transitions, 4719 flow, removed 3 selfloop flow, removed 9 redundant places. [2023-08-30 08:13:19,387 INFO L231 Difference]: Finished difference. Result has 240 places, 301 transitions, 3488 flow [2023-08-30 08:13:19,387 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=3168, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3488, PETRI_PLACES=240, PETRI_TRANSITIONS=301} [2023-08-30 08:13:19,388 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 164 predicate places. [2023-08-30 08:13:19,388 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 301 transitions, 3488 flow [2023-08-30 08:13:19,388 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) [2023-08-30 08:13:19,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:13:19,389 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] [2023-08-30 08:13:19,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-30 08:13:19,389 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:13:19,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:13:19,389 INFO L85 PathProgramCache]: Analyzing trace with hash 608756118, now seen corresponding path program 1 times [2023-08-30 08:13:19,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:13:19,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405541615] [2023-08-30 08:13:19,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:13:19,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:13:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:13:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:13:20,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:13:20,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405541615] [2023-08-30 08:13:20,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405541615] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:13:20,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:13:20,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:13:20,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104111424] [2023-08-30 08:13:20,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:13:20,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:13:20,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:13:20,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:13:20,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:13:20,935 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 558 [2023-08-30 08:13:20,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 301 transitions, 3488 flow. Second operand has 13 states, 13 states have (on average 230.76923076923077) internal successors, (3000), 13 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:13:20,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:13:20,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 558 [2023-08-30 08:13:20,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:13:30,158 INFO L130 PetriNetUnfolder]: 35270/60758 cut-off events. [2023-08-30 08:13:30,159 INFO L131 PetriNetUnfolder]: For 139632/139636 co-relation queries the response was YES. [2023-08-30 08:13:30,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207933 conditions, 60758 events. 35270/60758 cut-off events. For 139632/139636 co-relation queries the response was YES. Maximal size of possible extension queue 1057. Compared 476697 event pairs, 12296 based on Foata normal form. 234/55545 useless extension candidates. Maximal degree in co-relation 207737. Up to 27081 conditions per place. [2023-08-30 08:13:31,099 INFO L137 encePairwiseOnDemand]: 538/558 looper letters, 426 selfloop transitions, 178 changer transitions 0/611 dead transitions. [2023-08-30 08:13:31,099 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 611 transitions, 6309 flow [2023-08-30 08:13:31,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 08:13:31,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 08:13:31,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3747 transitions. [2023-08-30 08:13:31,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44767025089605733 [2023-08-30 08:13:31,102 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3747 transitions. [2023-08-30 08:13:31,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3747 transitions. [2023-08-30 08:13:31,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:13:31,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3747 transitions. [2023-08-30 08:13:31,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 249.8) internal successors, (3747), 15 states have internal predecessors, (3747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:13:31,111 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) [2023-08-30 08:13:31,112 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) [2023-08-30 08:13:31,112 INFO L175 Difference]: Start difference. First operand has 240 places, 301 transitions, 3488 flow. Second operand 15 states and 3747 transitions. [2023-08-30 08:13:31,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 611 transitions, 6309 flow [2023-08-30 08:13:31,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 611 transitions, 6232 flow, removed 8 selfloop flow, removed 8 redundant places. [2023-08-30 08:13:31,599 INFO L231 Difference]: Finished difference. Result has 251 places, 349 transitions, 4466 flow [2023-08-30 08:13:31,599 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=3415, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4466, PETRI_PLACES=251, PETRI_TRANSITIONS=349} [2023-08-30 08:13:31,599 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 175 predicate places. [2023-08-30 08:13:31,599 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 349 transitions, 4466 flow [2023-08-30 08:13:31,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 230.76923076923077) internal successors, (3000), 13 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:13:31,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:13:31,600 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] [2023-08-30 08:13:31,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-30 08:13:31,600 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:13:31,600 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:13:31,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1509669113, now seen corresponding path program 4 times [2023-08-30 08:13:31,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:13:31,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370471597] [2023-08-30 08:13:31,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:13:31,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:13:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:13:32,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:13:32,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:13:32,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370471597] [2023-08-30 08:13:32,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370471597] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:13:32,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:13:32,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:13:32,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444345858] [2023-08-30 08:13:32,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:13:32,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:13:32,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:13:32,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:13:32,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:13:33,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 558 [2023-08-30 08:13:33,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 349 transitions, 4466 flow. Second operand has 13 states, 13 states have (on average 236.76923076923077) internal successors, (3078), 13 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:13:33,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:13:33,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 558 [2023-08-30 08:13:33,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:13:43,782 INFO L130 PetriNetUnfolder]: 34045/59247 cut-off events. [2023-08-30 08:13:43,783 INFO L131 PetriNetUnfolder]: For 171754/171754 co-relation queries the response was YES. [2023-08-30 08:13:45,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214365 conditions, 59247 events. 34045/59247 cut-off events. For 171754/171754 co-relation queries the response was YES. Maximal size of possible extension queue 1071. Compared 469841 event pairs, 14726 based on Foata normal form. 104/54130 useless extension candidates. Maximal degree in co-relation 167123. Up to 48451 conditions per place. [2023-08-30 08:13:45,213 INFO L137 encePairwiseOnDemand]: 545/558 looper letters, 372 selfloop transitions, 53 changer transitions 3/435 dead transitions. [2023-08-30 08:13:45,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 435 transitions, 5681 flow [2023-08-30 08:13:45,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:13:45,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:13:45,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2964 transitions. [2023-08-30 08:13:45,216 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44265232974910396 [2023-08-30 08:13:45,216 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2964 transitions. [2023-08-30 08:13:45,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2964 transitions. [2023-08-30 08:13:45,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:13:45,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2964 transitions. [2023-08-30 08:13:45,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 247.0) internal successors, (2964), 12 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:13:45,223 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) [2023-08-30 08:13:45,224 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) [2023-08-30 08:13:45,224 INFO L175 Difference]: Start difference. First operand has 251 places, 349 transitions, 4466 flow. Second operand 12 states and 2964 transitions. [2023-08-30 08:13:45,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 435 transitions, 5681 flow [2023-08-30 08:13:45,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 435 transitions, 5599 flow, removed 17 selfloop flow, removed 6 redundant places. [2023-08-30 08:13:45,970 INFO L231 Difference]: Finished difference. Result has 257 places, 342 transitions, 4425 flow [2023-08-30 08:13:45,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=4286, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4425, PETRI_PLACES=257, PETRI_TRANSITIONS=342} [2023-08-30 08:13:45,971 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 181 predicate places. [2023-08-30 08:13:45,971 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 342 transitions, 4425 flow [2023-08-30 08:13:45,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 236.76923076923077) internal successors, (3078), 13 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:13:45,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:13:45,972 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] [2023-08-30 08:13:45,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-30 08:13:45,972 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:13:45,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:13:45,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1649093189, now seen corresponding path program 1 times [2023-08-30 08:13:45,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:13:45,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495255176] [2023-08-30 08:13:45,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:13:45,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:13:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:13:46,026 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:13:46,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:13:46,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495255176] [2023-08-30 08:13:46,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495255176] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:13:46,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:13:46,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:13:46,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326797308] [2023-08-30 08:13:46,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:13:46,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:13:46,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:13:46,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:13:46,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:13:46,040 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 558 [2023-08-30 08:13:46,040 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 342 transitions, 4425 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) [2023-08-30 08:13:46,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:13:46,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 558 [2023-08-30 08:13:46,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:13:48,647 INFO L130 PetriNetUnfolder]: 10486/18617 cut-off events. [2023-08-30 08:13:48,647 INFO L131 PetriNetUnfolder]: For 70065/70138 co-relation queries the response was YES. [2023-08-30 08:13:48,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67691 conditions, 18617 events. 10486/18617 cut-off events. For 70065/70138 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 122242 event pairs, 6164 based on Foata normal form. 657/18331 useless extension candidates. Maximal degree in co-relation 67489. Up to 9326 conditions per place. [2023-08-30 08:13:48,839 INFO L137 encePairwiseOnDemand]: 555/558 looper letters, 206 selfloop transitions, 2 changer transitions 1/225 dead transitions. [2023-08-30 08:13:48,839 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 225 transitions, 3267 flow [2023-08-30 08:13:48,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:13:48,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:13:48,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 891 transitions. [2023-08-30 08:13:48,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.532258064516129 [2023-08-30 08:13:48,840 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 891 transitions. [2023-08-30 08:13:48,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 891 transitions. [2023-08-30 08:13:48,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:13:48,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 891 transitions. [2023-08-30 08:13:48,841 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) [2023-08-30 08:13:48,842 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) [2023-08-30 08:13:48,842 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) [2023-08-30 08:13:48,842 INFO L175 Difference]: Start difference. First operand has 257 places, 342 transitions, 4425 flow. Second operand 3 states and 891 transitions. [2023-08-30 08:13:48,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 225 transitions, 3267 flow [2023-08-30 08:13:49,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 225 transitions, 3055 flow, removed 16 selfloop flow, removed 17 redundant places. [2023-08-30 08:13:49,059 INFO L231 Difference]: Finished difference. Result has 242 places, 209 transitions, 2577 flow [2023-08-30 08:13:49,059 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2561, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2577, PETRI_PLACES=242, PETRI_TRANSITIONS=209} [2023-08-30 08:13:49,060 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 166 predicate places. [2023-08-30 08:13:49,060 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 209 transitions, 2577 flow [2023-08-30 08:13:49,061 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) [2023-08-30 08:13:49,061 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:13:49,061 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] [2023-08-30 08:13:49,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-30 08:13:49,061 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:13:49,061 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:13:49,062 INFO L85 PathProgramCache]: Analyzing trace with hash 782403557, now seen corresponding path program 1 times [2023-08-30 08:13:49,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:13:49,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596026203] [2023-08-30 08:13:49,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:13:49,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:13:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:13:49,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:13:49,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:13:49,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596026203] [2023-08-30 08:13:49,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596026203] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:13:49,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:13:49,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:13:49,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649241792] [2023-08-30 08:13:49,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:13:49,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:13:49,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:13:49,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:13:49,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:13:49,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 558 [2023-08-30 08:13:49,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 209 transitions, 2577 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) [2023-08-30 08:13:49,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:13:49,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 558 [2023-08-30 08:13:49,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:13:51,182 INFO L130 PetriNetUnfolder]: 8171/15375 cut-off events. [2023-08-30 08:13:51,183 INFO L131 PetriNetUnfolder]: For 44305/44326 co-relation queries the response was YES. [2023-08-30 08:13:51,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54065 conditions, 15375 events. 8171/15375 cut-off events. For 44305/44326 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 100428 event pairs, 1779 based on Foata normal form. 1351/15970 useless extension candidates. Maximal degree in co-relation 52877. Up to 11290 conditions per place. [2023-08-30 08:13:51,326 INFO L137 encePairwiseOnDemand]: 552/558 looper letters, 197 selfloop transitions, 9 changer transitions 0/222 dead transitions. [2023-08-30 08:13:51,326 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 222 transitions, 3070 flow [2023-08-30 08:13:51,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:13:51,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:13:51,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 881 transitions. [2023-08-30 08:13:51,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.526284348864994 [2023-08-30 08:13:51,328 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 881 transitions. [2023-08-30 08:13:51,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 881 transitions. [2023-08-30 08:13:51,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:13:51,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 881 transitions. [2023-08-30 08:13:51,329 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) [2023-08-30 08:13:51,329 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) [2023-08-30 08:13:51,330 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) [2023-08-30 08:13:51,330 INFO L175 Difference]: Start difference. First operand has 242 places, 209 transitions, 2577 flow. Second operand 3 states and 881 transitions. [2023-08-30 08:13:51,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 222 transitions, 3070 flow [2023-08-30 08:13:51,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 222 transitions, 3022 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-30 08:13:51,477 INFO L231 Difference]: Finished difference. Result has 240 places, 209 transitions, 2549 flow [2023-08-30 08:13:51,477 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2531, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2549, PETRI_PLACES=240, PETRI_TRANSITIONS=209} [2023-08-30 08:13:51,478 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 164 predicate places. [2023-08-30 08:13:51,478 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 209 transitions, 2549 flow [2023-08-30 08:13:51,478 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) [2023-08-30 08:13:51,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:13:51,478 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] [2023-08-30 08:13:51,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-30 08:13:51,479 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:13:51,479 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:13:51,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1229417445, now seen corresponding path program 1 times [2023-08-30 08:13:51,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:13:51,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575170681] [2023-08-30 08:13:51,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:13:51,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:13:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:13:52,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:13:52,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:13:52,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575170681] [2023-08-30 08:13:52,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575170681] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:13:52,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:13:52,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:13:52,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223287550] [2023-08-30 08:13:52,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:13:52,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:13:52,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:13:52,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:13:52,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:13:52,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 558 [2023-08-30 08:13:52,413 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 209 transitions, 2549 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) [2023-08-30 08:13:52,413 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:13:52,413 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 558 [2023-08-30 08:13:52,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:13:54,374 INFO L130 PetriNetUnfolder]: 7862/14976 cut-off events. [2023-08-30 08:13:54,374 INFO L131 PetriNetUnfolder]: For 41110/41188 co-relation queries the response was YES. [2023-08-30 08:13:54,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53808 conditions, 14976 events. 7862/14976 cut-off events. For 41110/41188 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 99029 event pairs, 1945 based on Foata normal form. 26/14315 useless extension candidates. Maximal degree in co-relation 47673. Up to 4400 conditions per place. [2023-08-30 08:13:54,504 INFO L137 encePairwiseOnDemand]: 543/558 looper letters, 209 selfloop transitions, 63 changer transitions 1/279 dead transitions. [2023-08-30 08:13:54,504 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 279 transitions, 3413 flow [2023-08-30 08:13:54,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 08:13:54,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 08:13:54,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2358 transitions. [2023-08-30 08:13:54,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46953405017921146 [2023-08-30 08:13:54,507 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2358 transitions. [2023-08-30 08:13:54,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2358 transitions. [2023-08-30 08:13:54,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:13:54,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2358 transitions. [2023-08-30 08:13:54,509 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) [2023-08-30 08:13:54,512 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) [2023-08-30 08:13:54,513 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) [2023-08-30 08:13:54,513 INFO L175 Difference]: Start difference. First operand has 240 places, 209 transitions, 2549 flow. Second operand 9 states and 2358 transitions. [2023-08-30 08:13:54,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 279 transitions, 3413 flow [2023-08-30 08:13:54,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 279 transitions, 3395 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:13:54,683 INFO L231 Difference]: Finished difference. Result has 250 places, 213 transitions, 2740 flow [2023-08-30 08:13:54,683 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2540, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2740, PETRI_PLACES=250, PETRI_TRANSITIONS=213} [2023-08-30 08:13:54,684 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 174 predicate places. [2023-08-30 08:13:54,684 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 213 transitions, 2740 flow [2023-08-30 08:13:54,684 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) [2023-08-30 08:13:54,684 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:13:54,684 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] [2023-08-30 08:13:54,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-30 08:13:54,684 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:13:54,685 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:13:54,685 INFO L85 PathProgramCache]: Analyzing trace with hash -420185818, now seen corresponding path program 1 times [2023-08-30 08:13:54,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:13:54,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709924284] [2023-08-30 08:13:54,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:13:54,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:13:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:13:55,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:13:55,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:13:55,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709924284] [2023-08-30 08:13:55,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709924284] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:13:55,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:13:55,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-08-30 08:13:55,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730414381] [2023-08-30 08:13:55,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:13:55,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-08-30 08:13:55,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:13:55,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-08-30 08:13:55,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-08-30 08:13:56,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 558 [2023-08-30 08:13:56,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 213 transitions, 2740 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) [2023-08-30 08:13:56,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:13:56,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 558 [2023-08-30 08:13:56,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:14:00,113 INFO L130 PetriNetUnfolder]: 8368/16004 cut-off events. [2023-08-30 08:14:00,114 INFO L131 PetriNetUnfolder]: For 47766/47820 co-relation queries the response was YES. [2023-08-30 08:14:00,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57905 conditions, 16004 events. 8368/16004 cut-off events. For 47766/47820 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 108441 event pairs, 2491 based on Foata normal form. 18/15457 useless extension candidates. Maximal degree in co-relation 51680. Up to 4475 conditions per place. [2023-08-30 08:14:00,243 INFO L137 encePairwiseOnDemand]: 536/558 looper letters, 369 selfloop transitions, 118 changer transitions 6/499 dead transitions. [2023-08-30 08:14:00,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 499 transitions, 5116 flow [2023-08-30 08:14:00,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-08-30 08:14:00,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-08-30 08:14:00,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 7877 transitions. [2023-08-30 08:14:00,249 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4411402329749104 [2023-08-30 08:14:00,249 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 7877 transitions. [2023-08-30 08:14:00,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 7877 transitions. [2023-08-30 08:14:00,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:14:00,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 7877 transitions. [2023-08-30 08:14:00,257 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) [2023-08-30 08:14:00,267 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) [2023-08-30 08:14:00,269 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) [2023-08-30 08:14:00,270 INFO L175 Difference]: Start difference. First operand has 250 places, 213 transitions, 2740 flow. Second operand 32 states and 7877 transitions. [2023-08-30 08:14:00,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 499 transitions, 5116 flow [2023-08-30 08:14:00,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 499 transitions, 5057 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-08-30 08:14:00,473 INFO L231 Difference]: Finished difference. Result has 281 places, 228 transitions, 3109 flow [2023-08-30 08:14:00,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2685, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=3109, PETRI_PLACES=281, PETRI_TRANSITIONS=228} [2023-08-30 08:14:00,473 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 205 predicate places. [2023-08-30 08:14:00,473 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 228 transitions, 3109 flow [2023-08-30 08:14:00,474 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) [2023-08-30 08:14:00,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:14:00,474 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] [2023-08-30 08:14:00,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-30 08:14:00,474 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:14:00,475 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:14:00,475 INFO L85 PathProgramCache]: Analyzing trace with hash 578401396, now seen corresponding path program 2 times [2023-08-30 08:14:00,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:14:00,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432373042] [2023-08-30 08:14:00,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:14:00,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:14:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:14:01,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:14:01,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:14:01,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432373042] [2023-08-30 08:14:01,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432373042] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:14:01,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:14:01,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-08-30 08:14:01,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129353160] [2023-08-30 08:14:01,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:14:01,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-08-30 08:14:01,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:14:01,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-08-30 08:14:01,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-08-30 08:14:04,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 558 [2023-08-30 08:14:04,221 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 228 transitions, 3109 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) [2023-08-30 08:14:04,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:14:04,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 558 [2023-08-30 08:14:04,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:14:07,170 INFO L130 PetriNetUnfolder]: 8364/16052 cut-off events. [2023-08-30 08:14:07,170 INFO L131 PetriNetUnfolder]: For 53802/53870 co-relation queries the response was YES. [2023-08-30 08:14:07,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59929 conditions, 16052 events. 8364/16052 cut-off events. For 53802/53870 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 109124 event pairs, 3869 based on Foata normal form. 42/15588 useless extension candidates. Maximal degree in co-relation 58626. Up to 9300 conditions per place. [2023-08-30 08:14:07,323 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 266 selfloop transitions, 79 changer transitions 7/358 dead transitions. [2023-08-30 08:14:07,324 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 358 transitions, 4457 flow [2023-08-30 08:14:07,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 08:14:07,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 08:14:07,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4217 transitions. [2023-08-30 08:14:07,326 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.419852648347272 [2023-08-30 08:14:07,326 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4217 transitions. [2023-08-30 08:14:07,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4217 transitions. [2023-08-30 08:14:07,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:14:07,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4217 transitions. [2023-08-30 08:14:07,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 234.27777777777777) internal successors, (4217), 18 states have internal predecessors, (4217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:14:07,333 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) [2023-08-30 08:14:07,333 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) [2023-08-30 08:14:07,333 INFO L175 Difference]: Start difference. First operand has 281 places, 228 transitions, 3109 flow. Second operand 18 states and 4217 transitions. [2023-08-30 08:14:07,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 358 transitions, 4457 flow [2023-08-30 08:14:07,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 358 transitions, 4215 flow, removed 9 selfloop flow, removed 21 redundant places. [2023-08-30 08:14:07,508 INFO L231 Difference]: Finished difference. Result has 280 places, 234 transitions, 3117 flow [2023-08-30 08:14:07,508 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2871, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3117, PETRI_PLACES=280, PETRI_TRANSITIONS=234} [2023-08-30 08:14:07,508 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 204 predicate places. [2023-08-30 08:14:07,508 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 234 transitions, 3117 flow [2023-08-30 08:14:07,509 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) [2023-08-30 08:14:07,509 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:14:07,509 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] [2023-08-30 08:14:07,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-30 08:14:07,509 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:14:07,510 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:14:07,510 INFO L85 PathProgramCache]: Analyzing trace with hash -46020788, now seen corresponding path program 3 times [2023-08-30 08:14:07,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:14:07,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894735912] [2023-08-30 08:14:07,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:14:07,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:14:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:14:09,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:14:09,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:14:09,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894735912] [2023-08-30 08:14:09,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894735912] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:14:09,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:14:09,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-08-30 08:14:09,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973804939] [2023-08-30 08:14:09,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:14:09,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-08-30 08:14:09,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:14:09,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-08-30 08:14:09,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2023-08-30 08:14:12,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 558 [2023-08-30 08:14:12,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 234 transitions, 3117 flow. Second operand has 20 states, 20 states have (on average 225.6) internal successors, (4512), 20 states have internal predecessors, (4512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:14:12,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:14:12,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 558 [2023-08-30 08:14:12,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:14:15,979 INFO L130 PetriNetUnfolder]: 8472/16312 cut-off events. [2023-08-30 08:14:15,979 INFO L131 PetriNetUnfolder]: For 51520/51552 co-relation queries the response was YES. [2023-08-30 08:14:16,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60470 conditions, 16312 events. 8472/16312 cut-off events. For 51520/51552 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 111056 event pairs, 2763 based on Foata normal form. 50/15853 useless extension candidates. Maximal degree in co-relation 59315. Up to 7575 conditions per place. [2023-08-30 08:14:16,127 INFO L137 encePairwiseOnDemand]: 539/558 looper letters, 257 selfloop transitions, 87 changer transitions 13/363 dead transitions. [2023-08-30 08:14:16,128 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 363 transitions, 4452 flow [2023-08-30 08:14:16,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 08:14:16,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 08:14:16,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4215 transitions. [2023-08-30 08:14:16,130 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41965352449223414 [2023-08-30 08:14:16,130 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4215 transitions. [2023-08-30 08:14:16,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4215 transitions. [2023-08-30 08:14:16,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:14:16,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4215 transitions. [2023-08-30 08:14:16,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 234.16666666666666) internal successors, (4215), 18 states have internal predecessors, (4215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:14:16,137 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) [2023-08-30 08:14:16,138 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) [2023-08-30 08:14:16,138 INFO L175 Difference]: Start difference. First operand has 280 places, 234 transitions, 3117 flow. Second operand 18 states and 4215 transitions. [2023-08-30 08:14:16,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 363 transitions, 4452 flow [2023-08-30 08:14:16,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 363 transitions, 4296 flow, removed 3 selfloop flow, removed 15 redundant places. [2023-08-30 08:14:16,339 INFO L231 Difference]: Finished difference. Result has 285 places, 239 transitions, 3223 flow [2023-08-30 08:14:16,339 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2961, 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=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3223, PETRI_PLACES=285, PETRI_TRANSITIONS=239} [2023-08-30 08:14:16,339 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 209 predicate places. [2023-08-30 08:14:16,339 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 239 transitions, 3223 flow [2023-08-30 08:14:16,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 225.6) internal successors, (4512), 20 states have internal predecessors, (4512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:14:16,340 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:14:16,340 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] [2023-08-30 08:14:16,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-30 08:14:16,340 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:14:16,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:14:16,341 INFO L85 PathProgramCache]: Analyzing trace with hash -618680647, now seen corresponding path program 2 times [2023-08-30 08:14:16,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:14:16,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758521973] [2023-08-30 08:14:16,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:14:16,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:14:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:14:17,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:14:17,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:14:17,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758521973] [2023-08-30 08:14:17,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758521973] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:14:17,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:14:17,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-08-30 08:14:17,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452384490] [2023-08-30 08:14:17,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:14:17,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-08-30 08:14:17,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:14:17,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-08-30 08:14:17,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2023-08-30 08:14:19,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 558 [2023-08-30 08:14:19,875 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 239 transitions, 3223 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) [2023-08-30 08:14:19,875 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:14:19,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 558 [2023-08-30 08:14:19,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:14:22,958 INFO L130 PetriNetUnfolder]: 8454/16240 cut-off events. [2023-08-30 08:14:22,958 INFO L131 PetriNetUnfolder]: For 56842/56878 co-relation queries the response was YES. [2023-08-30 08:14:23,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61246 conditions, 16240 events. 8454/16240 cut-off events. For 56842/56878 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 110351 event pairs, 1671 based on Foata normal form. 50/15777 useless extension candidates. Maximal degree in co-relation 57936. Up to 7082 conditions per place. [2023-08-30 08:14:23,098 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 252 selfloop transitions, 88 changer transitions 13/359 dead transitions. [2023-08-30 08:14:23,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 359 transitions, 4496 flow [2023-08-30 08:14:23,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 08:14:23,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 08:14:23,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4284 transitions. [2023-08-30 08:14:23,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4265232974910394 [2023-08-30 08:14:23,101 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4284 transitions. [2023-08-30 08:14:23,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4284 transitions. [2023-08-30 08:14:23,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:14:23,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4284 transitions. [2023-08-30 08:14:23,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 238.0) internal successors, (4284), 18 states have internal predecessors, (4284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:14:23,107 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) [2023-08-30 08:14:23,108 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) [2023-08-30 08:14:23,108 INFO L175 Difference]: Start difference. First operand has 285 places, 239 transitions, 3223 flow. Second operand 18 states and 4284 transitions. [2023-08-30 08:14:23,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 359 transitions, 4496 flow [2023-08-30 08:14:23,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 359 transitions, 4367 flow, removed 1 selfloop flow, removed 13 redundant places. [2023-08-30 08:14:23,301 INFO L231 Difference]: Finished difference. Result has 288 places, 238 transitions, 3266 flow [2023-08-30 08:14:23,302 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=3090, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3266, PETRI_PLACES=288, PETRI_TRANSITIONS=238} [2023-08-30 08:14:23,302 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 212 predicate places. [2023-08-30 08:14:23,302 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 238 transitions, 3266 flow [2023-08-30 08:14:23,303 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) [2023-08-30 08:14:23,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:14:23,303 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] [2023-08-30 08:14:23,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-30 08:14:23,303 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:14:23,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:14:23,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1673998194, now seen corresponding path program 4 times [2023-08-30 08:14:23,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:14:23,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509432880] [2023-08-30 08:14:23,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:14:23,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:14:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:14:24,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:14:24,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:14:24,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509432880] [2023-08-30 08:14:24,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509432880] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:14:24,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:14:24,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-08-30 08:14:24,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939355496] [2023-08-30 08:14:24,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:14:24,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-08-30 08:14:24,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:14:24,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-08-30 08:14:24,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2023-08-30 08:14:26,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 558 [2023-08-30 08:14:26,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 238 transitions, 3266 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) [2023-08-30 08:14:26,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:14:26,540 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 558 [2023-08-30 08:14:26,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:14:29,572 INFO L130 PetriNetUnfolder]: 8429/16233 cut-off events. [2023-08-30 08:14:29,572 INFO L131 PetriNetUnfolder]: For 55586/55616 co-relation queries the response was YES. [2023-08-30 08:14:29,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61710 conditions, 16233 events. 8429/16233 cut-off events. For 55586/55616 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 110484 event pairs, 1841 based on Foata normal form. 30/15757 useless extension candidates. Maximal degree in co-relation 58588. Up to 7082 conditions per place. [2023-08-30 08:14:29,682 INFO L137 encePairwiseOnDemand]: 541/558 looper letters, 249 selfloop transitions, 85 changer transitions 12/352 dead transitions. [2023-08-30 08:14:29,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 352 transitions, 4490 flow [2023-08-30 08:14:29,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 08:14:29,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 08:14:29,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3981 transitions. [2023-08-30 08:14:29,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4196710942441493 [2023-08-30 08:14:29,686 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3981 transitions. [2023-08-30 08:14:29,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3981 transitions. [2023-08-30 08:14:29,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:14:29,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3981 transitions. [2023-08-30 08:14:29,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 234.1764705882353) internal successors, (3981), 17 states have internal predecessors, (3981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:14:29,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 558.0) internal successors, (10044), 18 states have internal predecessors, (10044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:14:29,693 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 558.0) internal successors, (10044), 18 states have internal predecessors, (10044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:14:29,693 INFO L175 Difference]: Start difference. First operand has 288 places, 238 transitions, 3266 flow. Second operand 17 states and 3981 transitions. [2023-08-30 08:14:29,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 352 transitions, 4490 flow [2023-08-30 08:14:29,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 352 transitions, 4337 flow, removed 0 selfloop flow, removed 15 redundant places. [2023-08-30 08:14:29,901 INFO L231 Difference]: Finished difference. Result has 290 places, 238 transitions, 3297 flow [2023-08-30 08:14:29,902 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=3113, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3297, PETRI_PLACES=290, PETRI_TRANSITIONS=238} [2023-08-30 08:14:29,902 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 214 predicate places. [2023-08-30 08:14:29,902 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 238 transitions, 3297 flow [2023-08-30 08:14:29,903 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) [2023-08-30 08:14:29,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:14:29,903 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] [2023-08-30 08:14:29,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-30 08:14:29,903 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:14:29,903 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:14:29,904 INFO L85 PathProgramCache]: Analyzing trace with hash 2072442387, now seen corresponding path program 1 times [2023-08-30 08:14:29,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:14:29,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893066611] [2023-08-30 08:14:29,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:14:29,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:14:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:14:30,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:14:30,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:14:30,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893066611] [2023-08-30 08:14:30,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893066611] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:14:30,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:14:30,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-08-30 08:14:30,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397170480] [2023-08-30 08:14:30,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:14:30,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 08:14:30,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:14:30,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 08:14:30,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2023-08-30 08:14:31,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 558 [2023-08-30 08:14:31,878 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 238 transitions, 3297 flow. Second operand has 17 states, 17 states have (on average 236.05882352941177) internal successors, (4013), 17 states have internal predecessors, (4013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:14:31,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:14:31,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 558 [2023-08-30 08:14:31,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:14:34,158 INFO L130 PetriNetUnfolder]: 7320/14098 cut-off events. [2023-08-30 08:14:34,158 INFO L131 PetriNetUnfolder]: For 56588/56656 co-relation queries the response was YES. [2023-08-30 08:14:34,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55932 conditions, 14098 events. 7320/14098 cut-off events. For 56588/56656 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 93492 event pairs, 3483 based on Foata normal form. 22/13767 useless extension candidates. Maximal degree in co-relation 53727. Up to 7736 conditions per place. [2023-08-30 08:14:34,302 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 240 selfloop transitions, 63 changer transitions 17/326 dead transitions. [2023-08-30 08:14:34,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 326 transitions, 4233 flow [2023-08-30 08:14:34,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:14:34,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:14:34,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3441 transitions. [2023-08-30 08:14:34,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44047619047619047 [2023-08-30 08:14:34,305 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3441 transitions. [2023-08-30 08:14:34,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3441 transitions. [2023-08-30 08:14:34,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:14:34,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3441 transitions. [2023-08-30 08:14:34,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 245.78571428571428) internal successors, (3441), 14 states have internal predecessors, (3441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:14:34,311 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) [2023-08-30 08:14:34,312 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) [2023-08-30 08:14:34,312 INFO L175 Difference]: Start difference. First operand has 290 places, 238 transitions, 3297 flow. Second operand 14 states and 3441 transitions. [2023-08-30 08:14:34,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 326 transitions, 4233 flow [2023-08-30 08:14:34,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 326 transitions, 3965 flow, removed 6 selfloop flow, removed 26 redundant places. [2023-08-30 08:14:34,512 INFO L231 Difference]: Finished difference. Result has 279 places, 226 transitions, 3012 flow [2023-08-30 08:14:34,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2864, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3012, PETRI_PLACES=279, PETRI_TRANSITIONS=226} [2023-08-30 08:14:34,512 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 203 predicate places. [2023-08-30 08:14:34,513 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 226 transitions, 3012 flow [2023-08-30 08:14:34,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 236.05882352941177) internal successors, (4013), 17 states have internal predecessors, (4013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:14:34,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:14:34,513 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] [2023-08-30 08:14:34,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-30 08:14:34,514 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:14:34,514 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:14:34,514 INFO L85 PathProgramCache]: Analyzing trace with hash -929083495, now seen corresponding path program 2 times [2023-08-30 08:14:34,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:14:34,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533167020] [2023-08-30 08:14:34,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:14:34,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:14:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:14:35,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:14:35,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:14:35,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533167020] [2023-08-30 08:14:35,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533167020] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:14:35,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:14:35,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-08-30 08:14:35,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970451468] [2023-08-30 08:14:35,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:14:35,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-08-30 08:14:35,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:14:35,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-08-30 08:14:35,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2023-08-30 08:14:36,828 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 558 [2023-08-30 08:14:36,829 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 226 transitions, 3012 flow. Second operand has 18 states, 18 states have (on average 235.94444444444446) internal successors, (4247), 18 states have internal predecessors, (4247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:14:36,829 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:14:36,829 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 558 [2023-08-30 08:14:36,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:14:38,924 INFO L130 PetriNetUnfolder]: 6601/12787 cut-off events. [2023-08-30 08:14:38,924 INFO L131 PetriNetUnfolder]: For 48473/48505 co-relation queries the response was YES. [2023-08-30 08:14:39,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50875 conditions, 12787 events. 6601/12787 cut-off events. For 48473/48505 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 83249 event pairs, 2116 based on Foata normal form. 90/12772 useless extension candidates. Maximal degree in co-relation 48706. Up to 3914 conditions per place. [2023-08-30 08:14:39,026 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 226 selfloop transitions, 67 changer transitions 15/314 dead transitions. [2023-08-30 08:14:39,026 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 314 transitions, 3974 flow [2023-08-30 08:14:39,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:14:39,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:14:39,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3197 transitions. [2023-08-30 08:14:39,032 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4407223600771988 [2023-08-30 08:14:39,032 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3197 transitions. [2023-08-30 08:14:39,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3197 transitions. [2023-08-30 08:14:39,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:14:39,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3197 transitions. [2023-08-30 08:14:39,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 245.92307692307693) internal successors, (3197), 13 states have internal predecessors, (3197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:14:39,039 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) [2023-08-30 08:14:39,039 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) [2023-08-30 08:14:39,040 INFO L175 Difference]: Start difference. First operand has 279 places, 226 transitions, 3012 flow. Second operand 13 states and 3197 transitions. [2023-08-30 08:14:39,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 314 transitions, 3974 flow [2023-08-30 08:14:39,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 314 transitions, 3816 flow, removed 3 selfloop flow, removed 12 redundant places. [2023-08-30 08:14:39,248 INFO L231 Difference]: Finished difference. Result has 281 places, 222 transitions, 2945 flow [2023-08-30 08:14:39,248 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2759, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2945, PETRI_PLACES=281, PETRI_TRANSITIONS=222} [2023-08-30 08:14:39,249 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 205 predicate places. [2023-08-30 08:14:39,249 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 222 transitions, 2945 flow [2023-08-30 08:14:39,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 235.94444444444446) internal successors, (4247), 18 states have internal predecessors, (4247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:14:39,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:14:39,250 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] [2023-08-30 08:14:39,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-30 08:14:39,250 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:14:39,250 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:14:39,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1448900109, now seen corresponding path program 3 times [2023-08-30 08:14:39,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:14:39,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050710262] [2023-08-30 08:14:39,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:14:39,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:14:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:14:40,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:14:40,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:14:40,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050710262] [2023-08-30 08:14:40,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050710262] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:14:40,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:14:40,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-08-30 08:14:40,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109792728] [2023-08-30 08:14:40,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:14:40,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 08:14:40,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:14:40,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 08:14:40,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2023-08-30 08:14:41,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 558 [2023-08-30 08:14:41,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 222 transitions, 2945 flow. Second operand has 17 states, 17 states have (on average 236.05882352941177) internal successors, (4013), 17 states have internal predecessors, (4013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:14:41,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:14:41,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 558 [2023-08-30 08:14:41,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:14:43,043 INFO L130 PetriNetUnfolder]: 5692/11078 cut-off events. [2023-08-30 08:14:43,043 INFO L131 PetriNetUnfolder]: For 49427/49457 co-relation queries the response was YES. [2023-08-30 08:14:43,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46215 conditions, 11078 events. 5692/11078 cut-off events. For 49427/49457 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 73080 event pairs, 1181 based on Foata normal form. 50/11082 useless extension candidates. Maximal degree in co-relation 45059. Up to 2972 conditions per place. [2023-08-30 08:14:43,150 INFO L137 encePairwiseOnDemand]: 540/558 looper letters, 206 selfloop transitions, 77 changer transitions 19/308 dead transitions. [2023-08-30 08:14:43,150 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 308 transitions, 3779 flow [2023-08-30 08:14:43,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 08:14:43,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 08:14:43,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3913 transitions. [2023-08-30 08:14:43,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43828405017921146 [2023-08-30 08:14:43,152 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3913 transitions. [2023-08-30 08:14:43,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3913 transitions. [2023-08-30 08:14:43,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:14:43,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3913 transitions. [2023-08-30 08:14:43,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 244.5625) internal successors, (3913), 16 states have internal predecessors, (3913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:14:43,159 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) [2023-08-30 08:14:43,159 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) [2023-08-30 08:14:43,159 INFO L175 Difference]: Start difference. First operand has 281 places, 222 transitions, 2945 flow. Second operand 16 states and 3913 transitions. [2023-08-30 08:14:43,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 308 transitions, 3779 flow [2023-08-30 08:14:43,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 308 transitions, 3419 flow, removed 7 selfloop flow, removed 28 redundant places. [2023-08-30 08:14:43,370 INFO L231 Difference]: Finished difference. Result has 271 places, 203 transitions, 2547 flow [2023-08-30 08:14:43,370 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2342, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2547, PETRI_PLACES=271, PETRI_TRANSITIONS=203} [2023-08-30 08:14:43,371 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 195 predicate places. [2023-08-30 08:14:43,371 INFO L495 AbstractCegarLoop]: Abstraction has has 271 places, 203 transitions, 2547 flow [2023-08-30 08:14:43,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 236.05882352941177) internal successors, (4013), 17 states have internal predecessors, (4013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:14:43,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:14:43,372 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:14:43,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-30 08:14:43,372 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:14:43,372 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:14:43,373 INFO L85 PathProgramCache]: Analyzing trace with hash 400375076, now seen corresponding path program 1 times [2023-08-30 08:14:43,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:14:43,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838972989] [2023-08-30 08:14:43,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:14:43,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:14:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:14:45,201 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:14:45,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:14:45,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838972989] [2023-08-30 08:14:45,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838972989] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 08:14:45,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652284163] [2023-08-30 08:14:45,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:14:45,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:14:45,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:14:45,211 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 08:14:45,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 08:14:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:14:45,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 80 conjunts are in the unsatisfiable core [2023-08-30 08:14:45,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 08:14:45,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-08-30 08:14:45,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 08:14:45,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2023-08-30 08:14:45,752 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-08-30 08:14:45,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 24 [2023-08-30 08:14:45,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2023-08-30 08:14:45,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2023-08-30 08:14:46,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 08:14:46,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2023-08-30 08:14:46,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2023-08-30 08:14:46,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 29 [2023-08-30 08:14:46,343 INFO L321 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2023-08-30 08:14:46,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 38 [2023-08-30 08:14:46,384 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:14:46,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 08:14:46,900 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1849 Int) (v_ArrVal_1853 Int) (v_ArrVal_1852 Int) (v_ArrVal_1848 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_1848) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< (select .cse0 .cse1) (+ v_ArrVal_1849 1)) (< (select (store (store (store .cse0 .cse1 v_ArrVal_1849) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_1852) (+ |c_~#queue~0.offset| (* (select .cse0 (+ |c_~#queue~0.offset| 1604)) 4)) v_ArrVal_1853) .cse1) 2147483647)))) is different from false [2023-08-30 08:14:46,913 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1849 Int) (v_ArrVal_1853 Int) (v_ArrVal_1852 Int) (v_ArrVal_1848 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604) (+ 1 |c_t1Thread1of1ForFork0_enqueue_#t~post41#1|))) |c_~#stored_elements~0.base| v_ArrVal_1848) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< (select (store (store (store .cse0 .cse1 v_ArrVal_1849) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_1852) (+ |c_~#queue~0.offset| (* (select .cse0 (+ |c_~#queue~0.offset| 1604)) 4)) v_ArrVal_1853) .cse1) 2147483647) (< (select .cse0 .cse1) (+ v_ArrVal_1849 1))))) is different from false [2023-08-30 08:14:46,927 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1849 Int) (v_ArrVal_1853 Int) (v_ArrVal_1852 Int) (v_ArrVal_1848 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604))) (store .cse2 .cse3 (+ (select .cse2 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_1848) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< (select .cse0 .cse1) (+ v_ArrVal_1849 1)) (< (select (store (store (store .cse0 .cse1 v_ArrVal_1849) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_1852) (+ (* (select .cse0 (+ |c_~#queue~0.offset| 1604)) 4) |c_~#queue~0.offset|) v_ArrVal_1853) .cse1) 2147483647)))) is different from false [2023-08-30 08:14:46,953 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1849 Int) (v_ArrVal_1853 Int) (v_ArrVal_1852 Int) (v_ArrVal_1844 Int) (v_ArrVal_1848 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604))) (store (store .cse2 (+ 1608 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_1844) .cse3 (+ (select .cse2 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_1848) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< (select (store (store (store .cse0 .cse1 v_ArrVal_1849) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_1852) (+ (* (select .cse0 (+ |c_~#queue~0.offset| 1604)) 4) |c_~#queue~0.offset|) v_ArrVal_1853) .cse1) 2147483647) (< (+ |c_t1Thread1of1ForFork0_enqueue_#t~post38#1| 1) v_ArrVal_1844) (< (select .cse0 .cse1) (+ v_ArrVal_1849 1))))) is different from false [2023-08-30 08:14:46,972 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1849 Int) (v_ArrVal_1853 Int) (v_ArrVal_1852 Int) (v_ArrVal_1844 Int) (v_ArrVal_1848 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604))) (store (store .cse2 (+ 1608 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_1844) .cse3 (+ (select .cse2 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_1848) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< 2147483647 v_ArrVal_1844) (< (select (store (store (store .cse0 .cse1 v_ArrVal_1849) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_1852) (+ (* (select .cse0 (+ |c_~#queue~0.offset| 1604)) 4) |c_~#queue~0.offset|) v_ArrVal_1853) .cse1) 2147483647) (< (select .cse0 .cse1) (+ v_ArrVal_1849 1))))) is different from false [2023-08-30 08:14:46,993 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1849 Int) (v_ArrVal_1842 Int) (v_ArrVal_1853 Int) (v_ArrVal_1852 Int) (v_ArrVal_1844 Int) (v_ArrVal_1848 (Array Int Int))) (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse2 (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ (* |c_t1Thread1of1ForFork0_enqueue_#t~mem36#1| 4) |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_1842)) (.cse3 (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604))) (store (store .cse2 (+ 1608 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_1844) .cse3 (+ (select .cse2 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_1848) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< 2147483647 v_ArrVal_1844) (< (select .cse0 .cse1) (+ v_ArrVal_1849 1)) (< (select (store (store (store .cse0 .cse1 v_ArrVal_1849) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_1852) (+ (* (select .cse0 (+ |c_~#queue~0.offset| 1604)) 4) |c_~#queue~0.offset|) v_ArrVal_1853) .cse1) 2147483647)))) is different from false [2023-08-30 08:14:48,169 INFO L321 Elim1Store]: treesize reduction 323, result has 42.5 percent of original size [2023-08-30 08:14:48,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 772 treesize of output 449 [2023-08-30 08:14:48,260 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2023-08-30 08:14:48,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 434 treesize of output 418 [2023-08-30 08:14:48,303 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:14:48,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 267 treesize of output 253 [2023-08-30 08:14:48,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 215 treesize of output 191 [2023-08-30 08:14:48,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-08-30 08:14:48,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-08-30 08:14:48,506 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-30 08:14:48,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 45 [2023-08-30 08:14:48,744 INFO L173 IndexEqualityManager]: detected equality via solver [2023-08-30 08:14:48,766 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:14:48,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 349 treesize of output 355 [2023-08-30 08:14:49,059 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:14:49,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 477 treesize of output 437 [2023-08-30 08:14:49,737 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:14:49,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 242 treesize of output 188 [2023-08-30 08:14:49,952 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-08-30 08:14:49,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652284163] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 08:14:49,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 08:14:49,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 18, 18] total 59 [2023-08-30 08:14:49,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93363306] [2023-08-30 08:14:49,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 08:14:49,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-08-30 08:14:49,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:14:49,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-08-30 08:14:49,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=2600, Unknown=6, NotChecked=666, Total=3660 [2023-08-30 08:14:50,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 558 [2023-08-30 08:14:50,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 203 transitions, 2547 flow. Second operand has 61 states, 61 states have (on average 181.1639344262295) internal successors, (11051), 61 states have internal predecessors, (11051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:14:50,624 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:14:50,624 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 558 [2023-08-30 08:14:50,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:15:12,586 INFO L130 PetriNetUnfolder]: 8610/16667 cut-off events. [2023-08-30 08:15:12,586 INFO L131 PetriNetUnfolder]: For 57210/57296 co-relation queries the response was YES. [2023-08-30 08:15:12,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64326 conditions, 16667 events. 8610/16667 cut-off events. For 57210/57296 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 112792 event pairs, 2544 based on Foata normal form. 36/16635 useless extension candidates. Maximal degree in co-relation 60692. Up to 3842 conditions per place. [2023-08-30 08:15:12,788 INFO L137 encePairwiseOnDemand]: 530/558 looper letters, 487 selfloop transitions, 164 changer transitions 38/695 dead transitions. [2023-08-30 08:15:12,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 695 transitions, 6603 flow [2023-08-30 08:15:12,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-08-30 08:15:12,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2023-08-30 08:15:12,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 10697 transitions. [2023-08-30 08:15:12,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3363201911589008 [2023-08-30 08:15:12,797 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 10697 transitions. [2023-08-30 08:15:12,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 10697 transitions. [2023-08-30 08:15:12,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:15:12,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 10697 transitions. [2023-08-30 08:15:12,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 187.66666666666666) internal successors, (10697), 57 states have internal predecessors, (10697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:15:12,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 558.0) internal successors, (32364), 58 states have internal predecessors, (32364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:15:12,831 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 558.0) internal successors, (32364), 58 states have internal predecessors, (32364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:15:12,831 INFO L175 Difference]: Start difference. First operand has 271 places, 203 transitions, 2547 flow. Second operand 57 states and 10697 transitions. [2023-08-30 08:15:12,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 695 transitions, 6603 flow [2023-08-30 08:15:13,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 695 transitions, 6424 flow, removed 4 selfloop flow, removed 12 redundant places. [2023-08-30 08:15:13,066 INFO L231 Difference]: Finished difference. Result has 325 places, 267 transitions, 3383 flow [2023-08-30 08:15:13,067 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=2398, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=3383, PETRI_PLACES=325, PETRI_TRANSITIONS=267} [2023-08-30 08:15:13,067 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 249 predicate places. [2023-08-30 08:15:13,067 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 267 transitions, 3383 flow [2023-08-30 08:15:13,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 181.1639344262295) internal successors, (11051), 61 states have internal predecessors, (11051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:15:13,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:15:13,069 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:15:13,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-30 08:15:13,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-08-30 08:15:13,269 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting t1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:15:13,270 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:15:13,270 INFO L85 PathProgramCache]: Analyzing trace with hash 400375051, now seen corresponding path program 1 times [2023-08-30 08:15:13,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:15:13,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564635933] [2023-08-30 08:15:13,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:15:13,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:15:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:15:13,690 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:15:13,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:15:13,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564635933] [2023-08-30 08:15:13,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564635933] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 08:15:13,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246170315] [2023-08-30 08:15:13,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:15:13,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:15:13,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:15:13,693 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 08:15:13,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-30 08:15:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:15:13,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 52 conjunts are in the unsatisfiable core [2023-08-30 08:15:13,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 08:15:14,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-30 08:15:14,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-30 08:15:14,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 08:15:14,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 08:15:14,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2023-08-30 08:15:14,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-08-30 08:15:14,407 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-08-30 08:15:14,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2023-08-30 08:15:14,463 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:15:14,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 08:15:17,128 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:15:17,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 66 [2023-08-30 08:15:17,139 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:15:17,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 106 [2023-08-30 08:15:17,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2023-08-30 08:15:17,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2023-08-30 08:15:17,170 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 08:15:17,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 53 [2023-08-30 08:15:17,302 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:15:17,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246170315] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 08:15:17,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 08:15:17,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 13, 13] total 33 [2023-08-30 08:15:17,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702455163] [2023-08-30 08:15:17,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 08:15:17,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-08-30 08:15:17,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:15:17,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-08-30 08:15:17,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1006, Unknown=6, NotChecked=0, Total=1190 [2023-08-30 08:15:20,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 08:15:22,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 08:15:25,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 08:15:27,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 08:15:29,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 08:15:31,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 08:15:34,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-08-30 08:15:35,003 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 558 [2023-08-30 08:15:35,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 267 transitions, 3383 flow. Second operand has 35 states, 35 states have (on average 195.77142857142857) internal successors, (6852), 35 states have internal predecessors, (6852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:15:35,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:15:35,007 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 558 [2023-08-30 08:15:35,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:15:38,424 INFO L130 PetriNetUnfolder]: 8842/17091 cut-off events. [2023-08-30 08:15:38,424 INFO L131 PetriNetUnfolder]: For 55861/55951 co-relation queries the response was YES. [2023-08-30 08:15:38,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67531 conditions, 17091 events. 8842/17091 cut-off events. For 55861/55951 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 115620 event pairs, 2561 based on Foata normal form. 60/17107 useless extension candidates. Maximal degree in co-relation 65328. Up to 4128 conditions per place. [2023-08-30 08:15:38,631 INFO L137 encePairwiseOnDemand]: 537/558 looper letters, 272 selfloop transitions, 109 changer transitions 18/405 dead transitions. [2023-08-30 08:15:38,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 405 transitions, 4834 flow [2023-08-30 08:15:38,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-30 08:15:38,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-30 08:15:38,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4057 transitions. [2023-08-30 08:15:38,635 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3635304659498208 [2023-08-30 08:15:38,635 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4057 transitions. [2023-08-30 08:15:38,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4057 transitions. [2023-08-30 08:15:38,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:15:38,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4057 transitions. [2023-08-30 08:15:38,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 202.85) internal successors, (4057), 20 states have internal predecessors, (4057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:15:38,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 558.0) internal successors, (11718), 21 states have internal predecessors, (11718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:15:38,642 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 558.0) internal successors, (11718), 21 states have internal predecessors, (11718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:15:38,642 INFO L175 Difference]: Start difference. First operand has 325 places, 267 transitions, 3383 flow. Second operand 20 states and 4057 transitions. [2023-08-30 08:15:38,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 405 transitions, 4834 flow [2023-08-30 08:15:38,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 405 transitions, 4619 flow, removed 33 selfloop flow, removed 17 redundant places. [2023-08-30 08:15:38,932 INFO L231 Difference]: Finished difference. Result has 325 places, 271 transitions, 3415 flow [2023-08-30 08:15:38,933 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=558, PETRI_DIFFERENCE_MINUEND_FLOW=3121, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3415, PETRI_PLACES=325, PETRI_TRANSITIONS=271} [2023-08-30 08:15:38,933 INFO L281 CegarLoopForPetriNet]: 76 programPoint places, 249 predicate places. [2023-08-30 08:15:38,933 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 271 transitions, 3415 flow [2023-08-30 08:15:38,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 195.77142857142857) internal successors, (6852), 35 states have internal predecessors, (6852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:15:38,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:15:38,935 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:15:38,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-30 08:15:39,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:15:39,141 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2023-08-30 08:15:39,141 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:15:39,141 INFO L85 PathProgramCache]: Analyzing trace with hash -233317708, now seen corresponding path program 2 times [2023-08-30 08:15:39,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:15:39,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853559383] [2023-08-30 08:15:39,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:15:39,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:15:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:15:40,867 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:15:40,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:15:40,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853559383] [2023-08-30 08:15:40,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853559383] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 08:15:40,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697124762] [2023-08-30 08:15:40,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 08:15:40,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 08:15:40,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:15:40,869 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 08:15:40,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-30 08:15:41,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-30 08:15:41,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 08:15:41,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 113 conjunts are in the unsatisfiable core [2023-08-30 08:15:41,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 08:15:41,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 08:15:41,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 08:15:41,173 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-08-30 08:15:41,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 30 [2023-08-30 08:15:41,190 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2023-08-30 08:15:41,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2023-08-30 08:15:41,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2023-08-30 08:15:41,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2023-08-30 08:15:41,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 34 [2023-08-30 08:15:41,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-08-30 08:15:41,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 08:15:41,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-08-30 08:15:41,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2023-08-30 08:15:42,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 35 [2023-08-30 08:15:42,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2023-08-30 08:15:42,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 08:15:42,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 43 [2023-08-30 08:15:43,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 48 [2023-08-30 08:15:45,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 44 [2023-08-30 08:16:03,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 54 [2023-08-30 08:16:18,300 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:16:18,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 08:16:23,523 WARN L839 $PredicateComparison]: unable to prove that (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74| Int) (v_ArrVal_2152 Int) (v_ArrVal_2144 Int) (v_ArrVal_2146 (Array Int Int)) (v_ArrVal_2148 Int) (v_ArrVal_2149 Int)) (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604) v_ArrVal_2144)) |c_~#stored_elements~0.base| v_ArrVal_2146) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< (+ 1 |c_t1Thread1of1ForFork0_enqueue_#t~post41#1|) v_ArrVal_2144) (< (select .cse0 (+ |c_~#queue~0.offset| 1604)) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|) (< (select .cse0 .cse1) (+ v_ArrVal_2148 1)) (< (select (store (store (store .cse0 .cse1 v_ArrVal_2148) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_2149) (+ |c_~#queue~0.offset| (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|)) v_ArrVal_2152) .cse1) 2147483647)))) is different from false [2023-08-30 08:16:23,541 WARN L839 $PredicateComparison]: unable to prove that (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74| Int) (v_ArrVal_2152 Int) (v_ArrVal_2144 Int) (v_ArrVal_2146 (Array Int Int)) (v_ArrVal_2148 Int) (v_ArrVal_2149 Int)) (let ((.cse1 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse2 (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604))) (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store .cse1 .cse2 v_ArrVal_2144)) |c_~#stored_elements~0.base| v_ArrVal_2146) |c_~#queue~0.base|)) (.cse3 (+ 1608 |c_~#queue~0.offset|))) (or (< (select .cse0 (+ |c_~#queue~0.offset| 1604)) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|) (< (+ (select .cse1 .cse2) 1) v_ArrVal_2144) (< (select .cse0 .cse3) (+ v_ArrVal_2148 1)) (< (select (store (store (store .cse0 .cse3 v_ArrVal_2148) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_2149) (+ |c_~#queue~0.offset| (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|)) v_ArrVal_2152) .cse3) 2147483647))))) is different from false [2023-08-30 08:16:23,579 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2142 Int) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74| Int) (v_ArrVal_2152 Int) (v_ArrVal_2144 Int) (v_ArrVal_2146 (Array Int Int)) (v_ArrVal_2148 Int) (v_ArrVal_2149 Int)) (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604))) (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (store .cse2 (+ 1608 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_2142) .cse3 v_ArrVal_2144)) |c_~#stored_elements~0.base| v_ArrVal_2146) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< (select .cse0 (+ |c_~#queue~0.offset| 1604)) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|) (< (select (store (store (store .cse0 .cse1 v_ArrVal_2148) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_2149) (+ |c_~#queue~0.offset| (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|)) v_ArrVal_2152) .cse1) 2147483647) (< (select .cse0 .cse1) (+ v_ArrVal_2148 1)) (< (+ (select .cse2 .cse3) 1) v_ArrVal_2144) (< (+ |c_t1Thread1of1ForFork0_enqueue_#t~post38#1| 1) v_ArrVal_2142))))) is different from false [2023-08-30 08:16:23,606 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2142 Int) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74| Int) (v_ArrVal_2152 Int) (v_ArrVal_2144 Int) (v_ArrVal_2146 (Array Int Int)) (v_ArrVal_2148 Int) (v_ArrVal_2149 Int)) (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604))) (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (store .cse2 (+ 1608 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_2142) .cse3 v_ArrVal_2144)) |c_~#stored_elements~0.base| v_ArrVal_2146) |c_~#queue~0.base|)) (.cse1 (+ 1608 |c_~#queue~0.offset|))) (or (< (select .cse0 (+ |c_~#queue~0.offset| 1604)) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|) (< 2147483647 v_ArrVal_2142) (< (select (store (store (store .cse0 .cse1 v_ArrVal_2148) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_2149) (+ |c_~#queue~0.offset| (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|)) v_ArrVal_2152) .cse1) 2147483647) (< (select .cse0 .cse1) (+ v_ArrVal_2148 1)) (< (+ (select .cse2 .cse3) 1) v_ArrVal_2144))))) is different from false [2023-08-30 08:16:23,638 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2140 Int) (v_ArrVal_2142 Int) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74| Int) (v_ArrVal_2152 Int) (v_ArrVal_2144 Int) (v_ArrVal_2146 (Array Int Int)) (v_ArrVal_2148 Int) (v_ArrVal_2149 Int)) (let ((.cse0 (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ (* |c_t1Thread1of1ForFork0_enqueue_#t~mem36#1| 4) |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_2140)) (.cse1 (+ |c_t1Thread1of1ForFork0_enqueue_~q#1.offset| 1604))) (let ((.cse3 (+ 1608 |c_~#queue~0.offset|)) (.cse2 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (store .cse0 (+ 1608 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) v_ArrVal_2142) .cse1 v_ArrVal_2144)) |c_~#stored_elements~0.base| v_ArrVal_2146) |c_~#queue~0.base|))) (or (< (+ (select .cse0 .cse1) 1) v_ArrVal_2144) (< (select (store (store (store .cse2 .cse3 v_ArrVal_2148) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_2149) (+ |c_~#queue~0.offset| (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|)) v_ArrVal_2152) .cse3) 2147483647) (< 2147483647 v_ArrVal_2142) (< (select .cse2 .cse3) (+ v_ArrVal_2148 1)) (< (select .cse2 (+ |c_~#queue~0.offset| 1604)) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|))))) is different from false [2023-08-30 08:16:26,496 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2140 Int) (v_ArrVal_2142 Int) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74| Int) (v_ArrVal_2152 Int) (v_ArrVal_2139 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_76| Int) (v_ArrVal_2144 Int) (v_ArrVal_2138 (Array Int Int)) (v_ArrVal_2146 (Array Int Int)) (v_ArrVal_2148 Int) (v_ArrVal_2149 Int)) (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_2138) |c_~#stored_elements~0.base| v_ArrVal_2139))) (let ((.cse0 (select .cse5 |c_~#queue~0.base|))) (let ((.cse2 (store .cse0 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_76|) |c_~#queue~0.offset|) v_ArrVal_2140)) (.cse4 (+ 1608 |c_~#queue~0.offset|)) (.cse1 (+ |c_~#queue~0.offset| 1604))) (let ((.cse3 (select (store (store .cse5 |c_~#queue~0.base| (store (store .cse2 .cse4 v_ArrVal_2142) .cse1 v_ArrVal_2144)) |c_~#stored_elements~0.base| v_ArrVal_2146) |c_~#queue~0.base|))) (or (< (select .cse0 .cse1) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_76|) (< (+ (select .cse2 .cse1) 1) v_ArrVal_2144) (< 2147483647 v_ArrVal_2142) (< (select (store (store (store .cse3 .cse4 v_ArrVal_2148) (+ 1600 |c_~#queue~0.offset|) v_ArrVal_2149) (+ |c_~#queue~0.offset| (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|)) v_ArrVal_2152) .cse4) 2147483647) (< (select .cse3 .cse1) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_74|) (< (select .cse3 .cse4) (+ v_ArrVal_2148 1)))))))) is different from false [2023-08-30 08:16:37,722 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-08-30 08:16:37,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697124762] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 08:16:37,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 08:16:37,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 20, 21] total 65 [2023-08-30 08:16:37,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810779186] [2023-08-30 08:16:37,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 08:16:37,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2023-08-30 08:16:37,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:16:37,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2023-08-30 08:16:37,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=429, Invalid=3150, Unknown=105, NotChecked=738, Total=4422 [2023-08-30 08:16:38,105 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 558 [2023-08-30 08:16:38,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 271 transitions, 3415 flow. Second operand has 67 states, 67 states have (on average 180.97014925373134) internal successors, (12125), 67 states have internal predecessors, (12125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:16:38,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:16:38,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 558 [2023-08-30 08:16:38,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:16:44,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:16:50,382 WARN L222 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 99 DAG size of output: 40 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 08:17:13,151 WARN L222 SmtUtils]: Spent 13.81s on a formula simplification. DAG size of input: 176 DAG size of output: 92 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 08:17:14,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:17:16,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:17:21,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:17:23,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:17:33,869 WARN L222 SmtUtils]: Spent 9.33s on a formula simplification. DAG size of input: 155 DAG size of output: 93 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 08:17:53,515 WARN L222 SmtUtils]: Spent 16.09s on a formula simplification. DAG size of input: 157 DAG size of output: 95 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 08:18:07,152 WARN L222 SmtUtils]: Spent 7.82s on a formula simplification. DAG size of input: 223 DAG size of output: 51 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 08:18:08,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:18:10,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:18:24,031 WARN L222 SmtUtils]: Spent 9.04s on a formula simplification. DAG size of input: 197 DAG size of output: 83 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 08:18:48,416 WARN L222 SmtUtils]: Spent 18.17s on a formula simplification. DAG size of input: 203 DAG size of output: 85 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 08:19:03,281 WARN L222 SmtUtils]: Spent 12.63s on a formula simplification. DAG size of input: 172 DAG size of output: 89 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 08:19:05,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:19:07,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:19:09,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:19:15,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:19:25,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:19:27,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:19:29,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:19:36,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:19:39,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:19:41,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:20:09,143 WARN L222 SmtUtils]: Spent 17.58s on a formula simplification. DAG size of input: 153 DAG size of output: 92 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 08:20:11,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:13,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:15,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:18,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:20,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:22,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:24,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:26,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:28,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:30,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:32,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:34,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:36,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:38,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:40,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:42,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:44,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:46,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:48,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:20:50,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:21:10,047 WARN L222 SmtUtils]: Spent 13.38s on a formula simplification. DAG size of input: 218 DAG size of output: 135 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 08:21:36,440 WARN L222 SmtUtils]: Spent 20.28s on a formula simplification. DAG size of input: 209 DAG size of output: 137 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 08:21:39,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:21:42,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:21:44,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:21:47,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-08-30 08:21:56,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:21:58,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:22:00,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:22:02,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:22:04,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:22:06,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:22:08,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:22:10,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:22:12,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:22:14,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:22:16,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:22:19,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:22:21,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:22:23,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:22:25,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:22:27,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:22:44,453 WARN L222 SmtUtils]: Spent 14.05s on a formula simplification. DAG size of input: 226 DAG size of output: 138 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 08:22:46,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:23:04,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:23:31,110 WARN L222 SmtUtils]: Spent 8.95s on a formula simplification. DAG size of input: 202 DAG size of output: 127 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-08-30 08:23:35,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:23:37,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:23:39,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:23:41,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:24:02,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:24:04,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:24:06,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:24:08,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:24:10,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:24:13,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:24:15,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:24:17,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:24:19,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2023-08-30 08:24:21,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] Killed by 15