./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-races/race-2_1-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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 ../sv-benchmarks/c/ldv-races/race-2_1-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 21:51:01,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 21:51:01,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 21:51:01,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 21:51:01,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 21:51:01,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 21:51:01,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 21:51:01,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 21:51:01,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 21:51:01,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 21:51:01,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 21:51:01,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 21:51:01,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 21:51:01,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 21:51:01,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 21:51:01,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 21:51:01,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 21:51:01,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 21:51:01,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 21:51:01,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 21:51:01,095 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 21:51:01,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 21:51:01,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 21:51:01,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 21:51:01,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 21:51:01,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 21:51:01,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 21:51:01,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 21:51:01,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 21:51:01,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 21:51:01,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 21:51:01,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 21:51:01,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 21:51:01,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 21:51:01,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 21:51:01,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 21:51:01,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 21:51:01,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 21:51:01,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 21:51:01,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 21:51:01,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 21:51:01,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 21:51:01,111 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 21:51:01,130 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 21:51:01,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 21:51:01,130 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 21:51:01,131 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 21:51:01,131 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 21:51:01,131 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 21:51:01,132 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 21:51:01,132 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 21:51:01,132 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 21:51:01,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 21:51:01,133 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 21:51:01,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 21:51:01,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 21:51:01,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 21:51:01,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 21:51:01,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 21:51:01,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 21:51:01,134 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 21:51:01,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 21:51:01,135 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 21:51:01,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 21:51:01,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 21:51:01,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 21:51:01,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 21:51:01,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:51:01,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 21:51:01,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 21:51:01,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 21:51:01,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 21:51:01,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 21:51:01,137 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 21:51:01,137 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 21:51:01,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 21:51:01,137 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db [2022-07-13 21:51:01,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 21:51:01,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 21:51:01,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 21:51:01,333 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 21:51:01,334 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 21:51:01,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-07-13 21:51:01,391 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e92d0114/029d5c8d8d4a474e9dce207aa706b320/FLAGabcd01acf [2022-07-13 21:51:01,841 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 21:51:01,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-07-13 21:51:01,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e92d0114/029d5c8d8d4a474e9dce207aa706b320/FLAGabcd01acf [2022-07-13 21:51:01,870 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e92d0114/029d5c8d8d4a474e9dce207aa706b320 [2022-07-13 21:51:01,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 21:51:01,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 21:51:01,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 21:51:01,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 21:51:01,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 21:51:01,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:51:01" (1/1) ... [2022-07-13 21:51:01,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5857cebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:51:01, skipping insertion in model container [2022-07-13 21:51:01,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 09:51:01" (1/1) ... [2022-07-13 21:51:01,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 21:51:01,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 21:51:02,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i[76077,76090] [2022-07-13 21:51:02,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:51:02,453 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 21:51:02,502 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i[76077,76090] [2022-07-13 21:51:02,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 21:51:02,593 INFO L208 MainTranslator]: Completed translation [2022-07-13 21:51:02,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:51:02 WrapperNode [2022-07-13 21:51:02,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 21:51:02,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 21:51:02,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 21:51:02,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 21:51:02,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:51:02" (1/1) ... [2022-07-13 21:51:02,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:51:02" (1/1) ... [2022-07-13 21:51:02,660 INFO L137 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 133 [2022-07-13 21:51:02,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 21:51:02,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 21:51:02,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 21:51:02,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 21:51:02,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:51:02" (1/1) ... [2022-07-13 21:51:02,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:51:02" (1/1) ... [2022-07-13 21:51:02,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:51:02" (1/1) ... [2022-07-13 21:51:02,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:51:02" (1/1) ... [2022-07-13 21:51:02,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:51:02" (1/1) ... [2022-07-13 21:51:02,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:51:02" (1/1) ... [2022-07-13 21:51:02,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:51:02" (1/1) ... [2022-07-13 21:51:02,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 21:51:02,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 21:51:02,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 21:51:02,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 21:51:02,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:51:02" (1/1) ... [2022-07-13 21:51:02,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 21:51:02,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 21:51:02,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 21:51:02,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 21:51:02,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 21:51:02,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 21:51:02,757 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 21:51:02,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 21:51:02,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 21:51:02,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 21:51:02,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 21:51:02,758 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-07-13 21:51:02,759 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-07-13 21:51:02,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 21:51:02,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 21:51:02,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 21:51:02,762 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 21:51:02,995 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 21:51:02,997 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 21:51:03,163 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 21:51:03,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 21:51:03,169 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 21:51:03,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:51:03 BoogieIcfgContainer [2022-07-13 21:51:03,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 21:51:03,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 21:51:03,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 21:51:03,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 21:51:03,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 09:51:01" (1/3) ... [2022-07-13 21:51:03,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66198e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:51:03, skipping insertion in model container [2022-07-13 21:51:03,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 09:51:02" (2/3) ... [2022-07-13 21:51:03,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66198e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 09:51:03, skipping insertion in model container [2022-07-13 21:51:03,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 09:51:03" (3/3) ... [2022-07-13 21:51:03,184 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2022-07-13 21:51:03,187 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 21:51:03,193 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 21:51:03,194 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-13 21:51:03,194 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 21:51:03,240 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-13 21:51:03,305 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 193 places, 195 transitions, 406 flow [2022-07-13 21:51:03,360 INFO L129 PetriNetUnfolder]: 10/240 cut-off events. [2022-07-13 21:51:03,360 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-13 21:51:03,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 240 events. 10/240 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 409 event pairs, 0 based on Foata normal form. 0/220 useless extension candidates. Maximal degree in co-relation 141. Up to 4 conditions per place. [2022-07-13 21:51:03,364 INFO L82 GeneralOperation]: Start removeDead. Operand has 193 places, 195 transitions, 406 flow [2022-07-13 21:51:03,368 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 181 transitions, 374 flow [2022-07-13 21:51:03,381 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 21:51:03,390 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4f64e1bd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1f2d1e32 [2022-07-13 21:51:03,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-07-13 21:51:03,397 INFO L129 PetriNetUnfolder]: 0/45 cut-off events. [2022-07-13 21:51:03,403 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-13 21:51:03,403 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:03,403 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:03,404 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:03,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:03,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1888391755, now seen corresponding path program 1 times [2022-07-13 21:51:03,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:03,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909700708] [2022-07-13 21:51:03,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:03,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:03,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:03,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:03,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909700708] [2022-07-13 21:51:03,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909700708] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:03,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:03,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 21:51:03,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730470633] [2022-07-13 21:51:03,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:03,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 21:51:03,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:03,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 21:51:03,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 21:51:03,863 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 195 [2022-07-13 21:51:03,871 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 181 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 120.5) internal successors, (723), 6 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:03,871 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:03,871 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 195 [2022-07-13 21:51:03,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:04,301 INFO L129 PetriNetUnfolder]: 361/1046 cut-off events. [2022-07-13 21:51:04,301 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-07-13 21:51:04,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1737 conditions, 1046 events. 361/1046 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 6141 event pairs, 216 based on Foata normal form. 20/1012 useless extension candidates. Maximal degree in co-relation 1489. Up to 397 conditions per place. [2022-07-13 21:51:04,316 INFO L132 encePairwiseOnDemand]: 173/195 looper letters, 53 selfloop transitions, 17 changer transitions 1/177 dead transitions. [2022-07-13 21:51:04,317 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 177 transitions, 508 flow [2022-07-13 21:51:04,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 21:51:04,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-13 21:51:04,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1138 transitions. [2022-07-13 21:51:04,338 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6484330484330484 [2022-07-13 21:51:04,339 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1138 transitions. [2022-07-13 21:51:04,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1138 transitions. [2022-07-13 21:51:04,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:04,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1138 transitions. [2022-07-13 21:51:04,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 126.44444444444444) internal successors, (1138), 9 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:04,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 195.0) internal successors, (1950), 10 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:04,365 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 195.0) internal successors, (1950), 10 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:04,367 INFO L186 Difference]: Start difference. First operand has 181 places, 181 transitions, 374 flow. Second operand 9 states and 1138 transitions. [2022-07-13 21:51:04,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 177 transitions, 508 flow [2022-07-13 21:51:04,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 177 transitions, 500 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-13 21:51:04,379 INFO L242 Difference]: Finished difference. Result has 179 places, 170 transitions, 385 flow [2022-07-13 21:51:04,381 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=385, PETRI_PLACES=179, PETRI_TRANSITIONS=170} [2022-07-13 21:51:04,386 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, -2 predicate places. [2022-07-13 21:51:04,387 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 170 transitions, 385 flow [2022-07-13 21:51:04,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.5) internal successors, (723), 6 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:04,388 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:04,388 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:04,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 21:51:04,389 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:04,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:04,390 INFO L85 PathProgramCache]: Analyzing trace with hash -57843741, now seen corresponding path program 1 times [2022-07-13 21:51:04,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:04,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932549077] [2022-07-13 21:51:04,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:04,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:04,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:04,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:04,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932549077] [2022-07-13 21:51:04,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932549077] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:04,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:04,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 21:51:04,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093369077] [2022-07-13 21:51:04,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:04,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 21:51:04,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:04,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 21:51:04,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 21:51:04,561 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 195 [2022-07-13 21:51:04,562 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 170 transitions, 385 flow. Second operand has 6 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:04,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:04,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 195 [2022-07-13 21:51:04,563 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:04,833 INFO L129 PetriNetUnfolder]: 361/1016 cut-off events. [2022-07-13 21:51:04,838 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-07-13 21:51:04,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1784 conditions, 1016 events. 361/1016 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5766 event pairs, 120 based on Foata normal form. 1/983 useless extension candidates. Maximal degree in co-relation 882. Up to 262 conditions per place. [2022-07-13 21:51:04,848 INFO L132 encePairwiseOnDemand]: 176/195 looper letters, 61 selfloop transitions, 18 changer transitions 1/185 dead transitions. [2022-07-13 21:51:04,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 185 transitions, 577 flow [2022-07-13 21:51:04,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 21:51:04,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-13 21:51:04,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1261 transitions. [2022-07-13 21:51:04,852 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6466666666666666 [2022-07-13 21:51:04,852 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1261 transitions. [2022-07-13 21:51:04,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1261 transitions. [2022-07-13 21:51:04,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:04,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1261 transitions. [2022-07-13 21:51:04,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:04,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 195.0) internal successors, (2145), 11 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:04,860 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 195.0) internal successors, (2145), 11 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:04,860 INFO L186 Difference]: Start difference. First operand has 179 places, 170 transitions, 385 flow. Second operand 10 states and 1261 transitions. [2022-07-13 21:51:04,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 185 transitions, 577 flow [2022-07-13 21:51:04,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 185 transitions, 548 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-07-13 21:51:04,870 INFO L242 Difference]: Finished difference. Result has 180 places, 169 transitions, 396 flow [2022-07-13 21:51:04,871 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=396, PETRI_PLACES=180, PETRI_TRANSITIONS=169} [2022-07-13 21:51:04,872 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, -1 predicate places. [2022-07-13 21:51:04,872 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 169 transitions, 396 flow [2022-07-13 21:51:04,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:04,873 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:04,873 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:04,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 21:51:04,874 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:04,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:04,875 INFO L85 PathProgramCache]: Analyzing trace with hash 5829728, now seen corresponding path program 1 times [2022-07-13 21:51:04,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:04,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347640057] [2022-07-13 21:51:04,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:04,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:05,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:05,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:05,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347640057] [2022-07-13 21:51:05,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347640057] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:05,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:05,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 21:51:05,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444698191] [2022-07-13 21:51:05,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:05,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 21:51:05,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:05,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 21:51:05,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 21:51:05,043 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 195 [2022-07-13 21:51:05,044 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 169 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 120.33333333333333) internal successors, (722), 6 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:05,044 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:05,044 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 195 [2022-07-13 21:51:05,044 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:05,572 INFO L129 PetriNetUnfolder]: 832/2098 cut-off events. [2022-07-13 21:51:05,572 INFO L130 PetriNetUnfolder]: For 131/131 co-relation queries the response was YES. [2022-07-13 21:51:05,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3841 conditions, 2098 events. 832/2098 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 14163 event pairs, 169 based on Foata normal form. 32/2102 useless extension candidates. Maximal degree in co-relation 1029. Up to 499 conditions per place. [2022-07-13 21:51:05,587 INFO L132 encePairwiseOnDemand]: 174/195 looper letters, 100 selfloop transitions, 49 changer transitions 0/254 dead transitions. [2022-07-13 21:51:05,588 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 254 transitions, 880 flow [2022-07-13 21:51:05,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 21:51:05,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-13 21:51:05,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1657 transitions. [2022-07-13 21:51:05,592 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6536489151873768 [2022-07-13 21:51:05,593 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1657 transitions. [2022-07-13 21:51:05,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1657 transitions. [2022-07-13 21:51:05,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:05,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1657 transitions. [2022-07-13 21:51:05,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 127.46153846153847) internal successors, (1657), 13 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) [2022-07-13 21:51:05,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 195.0) internal successors, (2730), 14 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:05,603 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 195.0) internal successors, (2730), 14 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:05,603 INFO L186 Difference]: Start difference. First operand has 180 places, 169 transitions, 396 flow. Second operand 13 states and 1657 transitions. [2022-07-13 21:51:05,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 254 transitions, 880 flow [2022-07-13 21:51:05,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 254 transitions, 834 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-07-13 21:51:05,610 INFO L242 Difference]: Finished difference. Result has 192 places, 206 transitions, 666 flow [2022-07-13 21:51:05,610 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=666, PETRI_PLACES=192, PETRI_TRANSITIONS=206} [2022-07-13 21:51:05,611 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 11 predicate places. [2022-07-13 21:51:05,611 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 206 transitions, 666 flow [2022-07-13 21:51:05,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.33333333333333) internal successors, (722), 6 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:05,612 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:05,612 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:05,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 21:51:05,613 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:05,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:05,613 INFO L85 PathProgramCache]: Analyzing trace with hash -2139572029, now seen corresponding path program 1 times [2022-07-13 21:51:05,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:05,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513903725] [2022-07-13 21:51:05,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:05,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:05,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:05,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:05,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513903725] [2022-07-13 21:51:05,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513903725] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:05,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:05,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 21:51:05,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770977535] [2022-07-13 21:51:05,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:05,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 21:51:05,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:05,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 21:51:05,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 21:51:05,726 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 195 [2022-07-13 21:51:05,727 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 206 transitions, 666 flow. Second operand has 6 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:05,727 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:05,727 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 195 [2022-07-13 21:51:05,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:06,260 INFO L129 PetriNetUnfolder]: 1084/2667 cut-off events. [2022-07-13 21:51:06,261 INFO L130 PetriNetUnfolder]: For 10874/10936 co-relation queries the response was YES. [2022-07-13 21:51:06,272 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9161 conditions, 2667 events. 1084/2667 cut-off events. For 10874/10936 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 19322 event pairs, 218 based on Foata normal form. 47/2686 useless extension candidates. Maximal degree in co-relation 7852. Up to 732 conditions per place. [2022-07-13 21:51:06,288 INFO L132 encePairwiseOnDemand]: 176/195 looper letters, 74 selfloop transitions, 48 changer transitions 69/295 dead transitions. [2022-07-13 21:51:06,288 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 295 transitions, 1750 flow [2022-07-13 21:51:06,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 21:51:06,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-07-13 21:51:06,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1406 transitions. [2022-07-13 21:51:06,292 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6554778554778555 [2022-07-13 21:51:06,292 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1406 transitions. [2022-07-13 21:51:06,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1406 transitions. [2022-07-13 21:51:06,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:06,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1406 transitions. [2022-07-13 21:51:06,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 127.81818181818181) internal successors, (1406), 11 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:06,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 195.0) internal successors, (2340), 12 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:06,303 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 195.0) internal successors, (2340), 12 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:06,304 INFO L186 Difference]: Start difference. First operand has 192 places, 206 transitions, 666 flow. Second operand 11 states and 1406 transitions. [2022-07-13 21:51:06,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 295 transitions, 1750 flow [2022-07-13 21:51:06,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 295 transitions, 1750 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-07-13 21:51:06,325 INFO L242 Difference]: Finished difference. Result has 210 places, 212 transitions, 979 flow [2022-07-13 21:51:06,326 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=979, PETRI_PLACES=210, PETRI_TRANSITIONS=212} [2022-07-13 21:51:06,327 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 29 predicate places. [2022-07-13 21:51:06,327 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 212 transitions, 979 flow [2022-07-13 21:51:06,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:06,329 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:06,329 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:06,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 21:51:06,329 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:06,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:06,331 INFO L85 PathProgramCache]: Analyzing trace with hash -902131826, now seen corresponding path program 1 times [2022-07-13 21:51:06,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:06,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624924766] [2022-07-13 21:51:06,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:06,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:06,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:06,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:06,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624924766] [2022-07-13 21:51:06,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624924766] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:06,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:06,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 21:51:06,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330669328] [2022-07-13 21:51:06,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:06,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 21:51:06,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:06,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 21:51:06,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 21:51:06,447 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 195 [2022-07-13 21:51:06,448 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 212 transitions, 979 flow. Second operand has 5 states, 5 states have (on average 170.2) internal successors, (851), 5 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:06,448 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:06,448 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 195 [2022-07-13 21:51:06,449 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:06,496 INFO L129 PetriNetUnfolder]: 4/168 cut-off events. [2022-07-13 21:51:06,496 INFO L130 PetriNetUnfolder]: For 459/531 co-relation queries the response was YES. [2022-07-13 21:51:06,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 168 events. 4/168 cut-off events. For 459/531 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 191 event pairs, 4 based on Foata normal form. 8/174 useless extension candidates. Maximal degree in co-relation 337. Up to 13 conditions per place. [2022-07-13 21:51:06,498 INFO L132 encePairwiseOnDemand]: 190/195 looper letters, 9 selfloop transitions, 4 changer transitions 0/140 dead transitions. [2022-07-13 21:51:06,498 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 140 transitions, 438 flow [2022-07-13 21:51:06,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 21:51:06,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-07-13 21:51:06,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1022 transitions. [2022-07-13 21:51:06,500 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8735042735042735 [2022-07-13 21:51:06,500 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1022 transitions. [2022-07-13 21:51:06,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1022 transitions. [2022-07-13 21:51:06,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:06,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1022 transitions. [2022-07-13 21:51:06,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 170.33333333333334) internal successors, (1022), 6 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:06,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:06,505 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:06,506 INFO L186 Difference]: Start difference. First operand has 210 places, 212 transitions, 979 flow. Second operand 6 states and 1022 transitions. [2022-07-13 21:51:06,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 140 transitions, 438 flow [2022-07-13 21:51:06,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 140 transitions, 318 flow, removed 40 selfloop flow, removed 19 redundant places. [2022-07-13 21:51:06,509 INFO L242 Difference]: Finished difference. Result has 153 places, 140 transitions, 300 flow [2022-07-13 21:51:06,510 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=300, PETRI_PLACES=153, PETRI_TRANSITIONS=140} [2022-07-13 21:51:06,510 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, -28 predicate places. [2022-07-13 21:51:06,510 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 140 transitions, 300 flow [2022-07-13 21:51:06,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 170.2) internal successors, (851), 5 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:06,511 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:06,511 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:06,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 21:51:06,512 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:06,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:06,512 INFO L85 PathProgramCache]: Analyzing trace with hash -971686872, now seen corresponding path program 1 times [2022-07-13 21:51:06,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:06,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909937199] [2022-07-13 21:51:06,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:06,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:07,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:07,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:07,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909937199] [2022-07-13 21:51:07,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909937199] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:07,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:07,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-07-13 21:51:07,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546172191] [2022-07-13 21:51:07,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:07,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-13 21:51:07,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:07,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-13 21:51:07,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-07-13 21:51:07,267 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-07-13 21:51:07,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 140 transitions, 300 flow. Second operand has 22 states, 22 states have (on average 101.72727272727273) internal successors, (2238), 22 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:07,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:07,269 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-07-13 21:51:07,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:09,271 INFO L129 PetriNetUnfolder]: 698/1674 cut-off events. [2022-07-13 21:51:09,271 INFO L130 PetriNetUnfolder]: For 148/148 co-relation queries the response was YES. [2022-07-13 21:51:09,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3160 conditions, 1674 events. 698/1674 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 10902 event pairs, 18 based on Foata normal form. 12/1632 useless extension candidates. Maximal degree in co-relation 3152. Up to 340 conditions per place. [2022-07-13 21:51:09,283 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 154 selfloop transitions, 29 changer transitions 0/257 dead transitions. [2022-07-13 21:51:09,283 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 257 transitions, 949 flow [2022-07-13 21:51:09,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-13 21:51:09,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-07-13 21:51:09,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2461 transitions. [2022-07-13 21:51:09,291 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5487179487179488 [2022-07-13 21:51:09,291 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2461 transitions. [2022-07-13 21:51:09,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2461 transitions. [2022-07-13 21:51:09,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:09,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2461 transitions. [2022-07-13 21:51:09,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 107.0) internal successors, (2461), 23 states have internal predecessors, (2461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:09,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 195.0) internal successors, (4680), 24 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:09,309 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 195.0) internal successors, (4680), 24 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:09,309 INFO L186 Difference]: Start difference. First operand has 153 places, 140 transitions, 300 flow. Second operand 23 states and 2461 transitions. [2022-07-13 21:51:09,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 257 transitions, 949 flow [2022-07-13 21:51:09,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 257 transitions, 942 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-13 21:51:09,316 INFO L242 Difference]: Finished difference. Result has 176 places, 150 transitions, 400 flow [2022-07-13 21:51:09,316 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=400, PETRI_PLACES=176, PETRI_TRANSITIONS=150} [2022-07-13 21:51:09,319 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, -5 predicate places. [2022-07-13 21:51:09,319 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 150 transitions, 400 flow [2022-07-13 21:51:09,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 101.72727272727273) internal successors, (2238), 22 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:09,320 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:09,321 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:09,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 21:51:09,322 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:09,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:09,323 INFO L85 PathProgramCache]: Analyzing trace with hash 934474332, now seen corresponding path program 2 times [2022-07-13 21:51:09,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:09,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302235877] [2022-07-13 21:51:09,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:09,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:09,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:09,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:09,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302235877] [2022-07-13 21:51:09,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302235877] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:09,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:09,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-13 21:51:09,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863596130] [2022-07-13 21:51:09,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:09,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-13 21:51:09,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:09,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-13 21:51:09,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-07-13 21:51:09,999 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-13 21:51:10,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 150 transitions, 400 flow. Second operand has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:10,001 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:10,001 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-13 21:51:10,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:10,812 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([419] L1711-->L1711-1: Formula: (let ((.cse0 (+ v_my_callbackThread1of1ForFork0_~data~0.offset_7 24))) (and (= (store |v_#memory_int_30| v_my_callbackThread1of1ForFork0_~data~0.base_7 (store (select |v_#memory_int_30| v_my_callbackThread1of1ForFork0_~data~0.base_7) .cse0 1)) |v_#memory_int_29|) (= (store |v_#memory_$Pointer$.base_18| v_my_callbackThread1of1ForFork0_~data~0.base_7 (store (select |v_#memory_$Pointer$.base_18| v_my_callbackThread1of1ForFork0_~data~0.base_7) .cse0 (select (select |v_#memory_$Pointer$.base_17| v_my_callbackThread1of1ForFork0_~data~0.base_7) .cse0))) |v_#memory_$Pointer$.base_17|) (= |v_#memory_$Pointer$.offset_17| (store |v_#memory_$Pointer$.offset_18| v_my_callbackThread1of1ForFork0_~data~0.base_7 (store (select |v_#memory_$Pointer$.offset_18| v_my_callbackThread1of1ForFork0_~data~0.base_7) .cse0 (select (select |v_#memory_$Pointer$.offset_17| v_my_callbackThread1of1ForFork0_~data~0.base_7) .cse0)))))) InVars {#memory_int=|v_#memory_int_30|, my_callbackThread1of1ForFork0_~data~0.offset=v_my_callbackThread1of1ForFork0_~data~0.offset_7, #memory_$Pointer$.base=|v_#memory_$Pointer$.base_18|, my_callbackThread1of1ForFork0_~data~0.base=v_my_callbackThread1of1ForFork0_~data~0.base_7, #memory_$Pointer$.offset=|v_#memory_$Pointer$.offset_18|} OutVars{#memory_int=|v_#memory_int_29|, my_callbackThread1of1ForFork0_~data~0.offset=v_my_callbackThread1of1ForFork0_~data~0.offset_7, #memory_$Pointer$.base=|v_#memory_$Pointer$.base_17|, my_callbackThread1of1ForFork0_~data~0.base=v_my_callbackThread1of1ForFork0_~data~0.base_7, #memory_$Pointer$.offset=|v_#memory_$Pointer$.offset_17|} AuxVars[] AssignedVars[#memory_$Pointer$.base, #memory_int, #memory_$Pointer$.offset][129], [406#(and (= my_callbackThread1of1ForFork1_~arg.offset (+ |ULTIMATE.start_main_~#data~1#1.offset| 24)) (= 0 |ULTIMATE.start_my_drv_probe_#in~data#1.offset|) (= (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24) 24) (= |ULTIMATE.start_my_drv_probe_#in~data#1.base| |ULTIMATE.start_main_~#data~1#1.base|) (not (= |ULTIMATE.start_main_~#data~1#1.base| |ULTIMATE.start_my_drv_disconnect_~#status~0#1.base|)) (= |ULTIMATE.start_main_~#data~1#1.base| |ULTIMATE.start_my_drv_probe_~data#1.base|) (= (+ |ULTIMATE.start_main_~#data~1#1.offset| 24) |my_callbackThread1of1ForFork1_#in~arg.offset|) (not (= |ULTIMATE.start_ldv_assert_~expression#1| 0)) (= |ULTIMATE.start_main_~#data~1#1.base| my_callbackThread1of1ForFork1_~arg.base) (<= (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24) |ULTIMATE.start_my_drv_probe_~d~0#1.offset|) (= (+ |ULTIMATE.start_main_~#data~1#1.offset| 24) 24) (= (select |#valid| |ULTIMATE.start_main_~#data~1#1.base|) 1) (= |ULTIMATE.start_main_~#data~1#1.base| |my_callbackThread1of1ForFork1_#in~arg.base|) (<= |ULTIMATE.start_my_drv_probe_~d~0#1.offset| (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24)) (= |ULTIMATE.start_main_~#data~1#1.base| |ULTIMATE.start_my_drv_probe_~d~0#1.base|)), Black: 282#(and (= (- 1) |ULTIMATE.start_main_#t~mem49#1|) (not (= |ULTIMATE.start_ldv_assert_~expression#1| 0))), 114#L1734-1true, Black: 253#(and (not (= |ULTIMATE.start_ldv_assert_~expression#1| 0)) (= (- 1) |ULTIMATE.start_main_#t~mem48#1|) (not (= |ULTIMATE.start_ldv_assert_#in~expression#1| 0))), Black: 286#(and (= (- 1) |ULTIMATE.start_main_#t~mem49#1|) (not (= |ULTIMATE.start_ldv_assert_#in~expression#1| 0))), 359#(and (<= my_callbackThread1of1ForFork1_~__mptr~0.offset 24) (<= |my_callbackThread1of1ForFork1_#in~arg.offset| 24) (= 0 |ULTIMATE.start_my_drv_probe_#in~data#1.offset|) (<= 24 |my_callbackThread1of1ForFork0_#in~arg.offset|) (<= |my_callbackThread1of1ForFork0_#in~arg.offset| 24) (<= my_callbackThread1of1ForFork1_~dev~0.offset 24) (<= 24 |my_callbackThread1of1ForFork1_#in~arg.offset|) (= |ULTIMATE.start_my_drv_probe_~data#1.offset| 0) (= |my_callbackThread1of1ForFork0_#in~arg.base| |my_callbackThread1of1ForFork1_#in~arg.base|) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~__mptr~0.base) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~arg.base) (<= 24 my_callbackThread1of1ForFork1_~arg.offset) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~data~0.base) (= |ULTIMATE.start_main_~#data~1#1.offset| 0) (<= 24 my_callbackThread1of1ForFork1_~dev~0.offset) (= my_callbackThread1of1ForFork1_~dev~0.base |my_callbackThread1of1ForFork0_#in~arg.base|) (<= my_callbackThread1of1ForFork1_~arg.offset 24) (= my_callbackThread1of1ForFork1_~data~0.offset 0) (<= (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24) |ULTIMATE.start_my_drv_probe_~d~0#1.offset|) (<= 24 my_callbackThread1of1ForFork1_~__mptr~0.offset) (<= |ULTIMATE.start_my_drv_probe_~d~0#1.offset| (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24)) (= |my_callbackThread1of1ForFork0_#in~arg.base| |ULTIMATE.start_my_drv_probe_~d~0#1.base|)), Black: 284#(and (= (- 1) |ULTIMATE.start_main_#t~mem49#1|) (not (= |ULTIMATE.start_ldv_assert_~expression#1| 0)) (not (= |ULTIMATE.start_ldv_assert_#in~expression#1| 0))), Black: 245#(and (not (= |ULTIMATE.start_ldv_assert_~expression#1| 0)) (= (- 1) |ULTIMATE.start_main_#t~mem48#1|) (not (= |ULTIMATE.start_ldv_assert_#in~expression#1| 0)) (= (- 1) (select (select |#memory_int| |ULTIMATE.start_main_~#data~1#1.base|) (+ |ULTIMATE.start_main_~#data~1#1.offset| 24)))), 306#(and (= |ULTIMATE.start_my_drv_probe_#res#1| 0) (= |ULTIMATE.start_main_~probe_ret~0#1| 0)), Black: 369#(and (<= my_callbackThread1of1ForFork1_~__mptr~0.offset 24) (<= |my_callbackThread1of1ForFork1_#in~arg.offset| 24) (= 0 |ULTIMATE.start_my_drv_probe_#in~data#1.offset|) (= my_callbackThread1of1ForFork0_~dev~0.base my_callbackThread1of1ForFork1_~data~0.base) (<= 24 |my_callbackThread1of1ForFork0_#in~arg.offset|) (<= |my_callbackThread1of1ForFork0_#in~arg.offset| 24) (<= my_callbackThread1of1ForFork0_~arg.offset 24) (<= my_callbackThread1of1ForFork1_~dev~0.offset 24) (<= 24 |my_callbackThread1of1ForFork1_#in~arg.offset|) (= |ULTIMATE.start_my_drv_probe_~data#1.offset| 0) (= |my_callbackThread1of1ForFork0_#in~arg.base| |my_callbackThread1of1ForFork1_#in~arg.base|) (= my_callbackThread1of1ForFork0_~arg.base my_callbackThread1of1ForFork1_~data~0.base) (<= my_callbackThread1of1ForFork0_~dev~0.offset 24) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~__mptr~0.base) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~arg.base) (<= my_callbackThread1of1ForFork0_~data~0.offset 0) (< 0 (+ my_callbackThread1of1ForFork0_~data~0.offset 1)) (= my_callbackThread1of1ForFork0_~__mptr~0.base my_callbackThread1of1ForFork1_~data~0.base) (<= 24 my_callbackThread1of1ForFork1_~arg.offset) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~data~0.base) (= |ULTIMATE.start_main_~#data~1#1.offset| 0) (<= 24 my_callbackThread1of1ForFork0_~__mptr~0.offset) (<= 24 my_callbackThread1of1ForFork1_~dev~0.offset) (= my_callbackThread1of1ForFork1_~dev~0.base |my_callbackThread1of1ForFork0_#in~arg.base|) (<= my_callbackThread1of1ForFork1_~arg.offset 24) (= my_callbackThread1of1ForFork1_~data~0.offset 0) (<= 24 my_callbackThread1of1ForFork0_~arg.offset) (<= (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24) |ULTIMATE.start_my_drv_probe_~d~0#1.offset|) (<= 24 my_callbackThread1of1ForFork1_~__mptr~0.offset) (= my_callbackThread1of1ForFork1_~data~0.base my_callbackThread1of1ForFork0_~data~0.base) (<= my_callbackThread1of1ForFork0_~__mptr~0.offset 24) (<= 24 my_callbackThread1of1ForFork0_~dev~0.offset) (<= |ULTIMATE.start_my_drv_probe_~d~0#1.offset| (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24)) (= |my_callbackThread1of1ForFork0_#in~arg.base| |ULTIMATE.start_my_drv_probe_~d~0#1.base|) (not (= (select (select |#pthreadsMutex| my_callbackThread1of1ForFork1_~data~0.base) my_callbackThread1of1ForFork1_~data~0.offset) 0))), Black: 365#(and (<= my_callbackThread1of1ForFork1_~__mptr~0.offset 24) (<= |my_callbackThread1of1ForFork1_#in~arg.offset| 24) (= 0 |ULTIMATE.start_my_drv_probe_#in~data#1.offset|) (= my_callbackThread1of1ForFork0_~dev~0.base my_callbackThread1of1ForFork1_~data~0.base) (<= 24 |my_callbackThread1of1ForFork0_#in~arg.offset|) (<= |my_callbackThread1of1ForFork0_#in~arg.offset| 24) (<= my_callbackThread1of1ForFork0_~arg.offset 24) (<= my_callbackThread1of1ForFork1_~dev~0.offset 24) (<= 24 |my_callbackThread1of1ForFork1_#in~arg.offset|) (= |ULTIMATE.start_my_drv_probe_~data#1.offset| 0) (= |my_callbackThread1of1ForFork0_#in~arg.base| |my_callbackThread1of1ForFork1_#in~arg.base|) (= my_callbackThread1of1ForFork0_~arg.base my_callbackThread1of1ForFork1_~data~0.base) (<= my_callbackThread1of1ForFork0_~dev~0.offset 24) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~__mptr~0.base) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~arg.base) (<= 24 my_callbackThread1of1ForFork1_~arg.offset) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~data~0.base) (= |ULTIMATE.start_main_~#data~1#1.offset| 0) (<= 24 my_callbackThread1of1ForFork1_~dev~0.offset) (= my_callbackThread1of1ForFork1_~dev~0.base |my_callbackThread1of1ForFork0_#in~arg.base|) (<= my_callbackThread1of1ForFork1_~arg.offset 24) (= my_callbackThread1of1ForFork1_~data~0.offset 0) (<= 24 my_callbackThread1of1ForFork0_~arg.offset) (<= (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24) |ULTIMATE.start_my_drv_probe_~d~0#1.offset|) (<= 24 my_callbackThread1of1ForFork1_~__mptr~0.offset) (<= 24 my_callbackThread1of1ForFork0_~dev~0.offset) (<= |ULTIMATE.start_my_drv_probe_~d~0#1.offset| (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24)) (= |my_callbackThread1of1ForFork0_#in~arg.base| |ULTIMATE.start_my_drv_probe_~d~0#1.base|) (not (= (select (select |#pthreadsMutex| my_callbackThread1of1ForFork1_~data~0.base) my_callbackThread1of1ForFork1_~data~0.offset) 0))), Black: 361#(and (<= my_callbackThread1of1ForFork1_~__mptr~0.offset 24) (<= |my_callbackThread1of1ForFork1_#in~arg.offset| 24) (= 0 |ULTIMATE.start_my_drv_probe_#in~data#1.offset|) (<= 24 |my_callbackThread1of1ForFork0_#in~arg.offset|) (<= |my_callbackThread1of1ForFork0_#in~arg.offset| 24) (<= my_callbackThread1of1ForFork1_~dev~0.offset 24) (<= 24 |my_callbackThread1of1ForFork1_#in~arg.offset|) (= |ULTIMATE.start_my_drv_probe_~data#1.offset| 0) (= |my_callbackThread1of1ForFork0_#in~arg.base| |my_callbackThread1of1ForFork1_#in~arg.base|) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~__mptr~0.base) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~arg.base) (<= 24 my_callbackThread1of1ForFork1_~arg.offset) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~data~0.base) (= |ULTIMATE.start_main_~#data~1#1.offset| 0) (<= 24 my_callbackThread1of1ForFork1_~dev~0.offset) (= my_callbackThread1of1ForFork1_~dev~0.base |my_callbackThread1of1ForFork0_#in~arg.base|) (<= my_callbackThread1of1ForFork1_~arg.offset 24) (= my_callbackThread1of1ForFork1_~data~0.offset 0) (<= (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24) |ULTIMATE.start_my_drv_probe_~d~0#1.offset|) (<= 24 my_callbackThread1of1ForFork1_~__mptr~0.offset) (<= |ULTIMATE.start_my_drv_probe_~d~0#1.offset| (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24)) (= |my_callbackThread1of1ForFork0_#in~arg.base| |ULTIMATE.start_my_drv_probe_~d~0#1.base|) (not (= (select (select |#pthreadsMutex| my_callbackThread1of1ForFork1_~data~0.base) my_callbackThread1of1ForFork1_~data~0.offset) 0))), Black: 367#(and (<= my_callbackThread1of1ForFork1_~__mptr~0.offset 24) (<= |my_callbackThread1of1ForFork1_#in~arg.offset| 24) (= 0 |ULTIMATE.start_my_drv_probe_#in~data#1.offset|) (= my_callbackThread1of1ForFork0_~dev~0.base my_callbackThread1of1ForFork1_~data~0.base) (<= 24 |my_callbackThread1of1ForFork0_#in~arg.offset|) (<= |my_callbackThread1of1ForFork0_#in~arg.offset| 24) (<= my_callbackThread1of1ForFork0_~arg.offset 24) (<= my_callbackThread1of1ForFork1_~dev~0.offset 24) (<= 24 |my_callbackThread1of1ForFork1_#in~arg.offset|) (= |ULTIMATE.start_my_drv_probe_~data#1.offset| 0) (= |my_callbackThread1of1ForFork0_#in~arg.base| |my_callbackThread1of1ForFork1_#in~arg.base|) (= my_callbackThread1of1ForFork0_~arg.base my_callbackThread1of1ForFork1_~data~0.base) (<= my_callbackThread1of1ForFork0_~dev~0.offset 24) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~__mptr~0.base) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~arg.base) (= my_callbackThread1of1ForFork0_~__mptr~0.base my_callbackThread1of1ForFork1_~data~0.base) (<= 24 my_callbackThread1of1ForFork1_~arg.offset) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~data~0.base) (= |ULTIMATE.start_main_~#data~1#1.offset| 0) (<= 24 my_callbackThread1of1ForFork0_~__mptr~0.offset) (<= 24 my_callbackThread1of1ForFork1_~dev~0.offset) (= my_callbackThread1of1ForFork1_~dev~0.base |my_callbackThread1of1ForFork0_#in~arg.base|) (<= my_callbackThread1of1ForFork1_~arg.offset 24) (= my_callbackThread1of1ForFork1_~data~0.offset 0) (<= 24 my_callbackThread1of1ForFork0_~arg.offset) (<= (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24) |ULTIMATE.start_my_drv_probe_~d~0#1.offset|) (<= 24 my_callbackThread1of1ForFork1_~__mptr~0.offset) (<= my_callbackThread1of1ForFork0_~__mptr~0.offset 24) (<= 24 my_callbackThread1of1ForFork0_~dev~0.offset) (<= |ULTIMATE.start_my_drv_probe_~d~0#1.offset| (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24)) (= |my_callbackThread1of1ForFork0_#in~arg.base| |ULTIMATE.start_my_drv_probe_~d~0#1.base|) (not (= (select (select |#pthreadsMutex| my_callbackThread1of1ForFork1_~data~0.base) my_callbackThread1of1ForFork1_~data~0.offset) 0))), Black: 363#(and (<= my_callbackThread1of1ForFork1_~__mptr~0.offset 24) (<= |my_callbackThread1of1ForFork1_#in~arg.offset| 24) (= 0 |ULTIMATE.start_my_drv_probe_#in~data#1.offset|) (<= 24 |my_callbackThread1of1ForFork0_#in~arg.offset|) (<= |my_callbackThread1of1ForFork0_#in~arg.offset| 24) (<= my_callbackThread1of1ForFork0_~arg.offset 24) (<= my_callbackThread1of1ForFork1_~dev~0.offset 24) (<= 24 |my_callbackThread1of1ForFork1_#in~arg.offset|) (= |ULTIMATE.start_my_drv_probe_~data#1.offset| 0) (= |my_callbackThread1of1ForFork0_#in~arg.base| |my_callbackThread1of1ForFork1_#in~arg.base|) (= my_callbackThread1of1ForFork0_~arg.base my_callbackThread1of1ForFork1_~data~0.base) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~__mptr~0.base) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~arg.base) (<= 24 my_callbackThread1of1ForFork1_~arg.offset) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~data~0.base) (= |ULTIMATE.start_main_~#data~1#1.offset| 0) (<= 24 my_callbackThread1of1ForFork1_~dev~0.offset) (= my_callbackThread1of1ForFork1_~dev~0.base |my_callbackThread1of1ForFork0_#in~arg.base|) (<= my_callbackThread1of1ForFork1_~arg.offset 24) (= my_callbackThread1of1ForFork1_~data~0.offset 0) (<= 24 my_callbackThread1of1ForFork0_~arg.offset) (<= (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24) |ULTIMATE.start_my_drv_probe_~d~0#1.offset|) (<= 24 my_callbackThread1of1ForFork1_~__mptr~0.offset) (<= |ULTIMATE.start_my_drv_probe_~d~0#1.offset| (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24)) (= |my_callbackThread1of1ForFork0_#in~arg.base| |ULTIMATE.start_my_drv_probe_~d~0#1.base|) (not (= (select (select |#pthreadsMutex| my_callbackThread1of1ForFork1_~data~0.base) my_callbackThread1of1ForFork1_~data~0.offset) 0))), 22#L1714true, 23#L1711-1true]) [2022-07-13 21:51:10,813 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-07-13 21:51:10,813 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-13 21:51:10,813 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-13 21:51:10,813 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-13 21:51:10,829 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([419] L1711-->L1711-1: Formula: (let ((.cse0 (+ v_my_callbackThread1of1ForFork0_~data~0.offset_7 24))) (and (= (store |v_#memory_int_30| v_my_callbackThread1of1ForFork0_~data~0.base_7 (store (select |v_#memory_int_30| v_my_callbackThread1of1ForFork0_~data~0.base_7) .cse0 1)) |v_#memory_int_29|) (= (store |v_#memory_$Pointer$.base_18| v_my_callbackThread1of1ForFork0_~data~0.base_7 (store (select |v_#memory_$Pointer$.base_18| v_my_callbackThread1of1ForFork0_~data~0.base_7) .cse0 (select (select |v_#memory_$Pointer$.base_17| v_my_callbackThread1of1ForFork0_~data~0.base_7) .cse0))) |v_#memory_$Pointer$.base_17|) (= |v_#memory_$Pointer$.offset_17| (store |v_#memory_$Pointer$.offset_18| v_my_callbackThread1of1ForFork0_~data~0.base_7 (store (select |v_#memory_$Pointer$.offset_18| v_my_callbackThread1of1ForFork0_~data~0.base_7) .cse0 (select (select |v_#memory_$Pointer$.offset_17| v_my_callbackThread1of1ForFork0_~data~0.base_7) .cse0)))))) InVars {#memory_int=|v_#memory_int_30|, my_callbackThread1of1ForFork0_~data~0.offset=v_my_callbackThread1of1ForFork0_~data~0.offset_7, #memory_$Pointer$.base=|v_#memory_$Pointer$.base_18|, my_callbackThread1of1ForFork0_~data~0.base=v_my_callbackThread1of1ForFork0_~data~0.base_7, #memory_$Pointer$.offset=|v_#memory_$Pointer$.offset_18|} OutVars{#memory_int=|v_#memory_int_29|, my_callbackThread1of1ForFork0_~data~0.offset=v_my_callbackThread1of1ForFork0_~data~0.offset_7, #memory_$Pointer$.base=|v_#memory_$Pointer$.base_17|, my_callbackThread1of1ForFork0_~data~0.base=v_my_callbackThread1of1ForFork0_~data~0.base_7, #memory_$Pointer$.offset=|v_#memory_$Pointer$.offset_17|} AuxVars[] AssignedVars[#memory_$Pointer$.base, #memory_int, #memory_$Pointer$.offset][129], [Black: 282#(and (= (- 1) |ULTIMATE.start_main_#t~mem49#1|) (not (= |ULTIMATE.start_ldv_assert_~expression#1| 0))), 406#(and (= my_callbackThread1of1ForFork1_~arg.offset (+ |ULTIMATE.start_main_~#data~1#1.offset| 24)) (= 0 |ULTIMATE.start_my_drv_probe_#in~data#1.offset|) (= (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24) 24) (= |ULTIMATE.start_my_drv_probe_#in~data#1.base| |ULTIMATE.start_main_~#data~1#1.base|) (not (= |ULTIMATE.start_main_~#data~1#1.base| |ULTIMATE.start_my_drv_disconnect_~#status~0#1.base|)) (= |ULTIMATE.start_main_~#data~1#1.base| |ULTIMATE.start_my_drv_probe_~data#1.base|) (= (+ |ULTIMATE.start_main_~#data~1#1.offset| 24) |my_callbackThread1of1ForFork1_#in~arg.offset|) (not (= |ULTIMATE.start_ldv_assert_~expression#1| 0)) (= |ULTIMATE.start_main_~#data~1#1.base| my_callbackThread1of1ForFork1_~arg.base) (<= (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24) |ULTIMATE.start_my_drv_probe_~d~0#1.offset|) (= (+ |ULTIMATE.start_main_~#data~1#1.offset| 24) 24) (= (select |#valid| |ULTIMATE.start_main_~#data~1#1.base|) 1) (= |ULTIMATE.start_main_~#data~1#1.base| |my_callbackThread1of1ForFork1_#in~arg.base|) (<= |ULTIMATE.start_my_drv_probe_~d~0#1.offset| (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24)) (= |ULTIMATE.start_main_~#data~1#1.base| |ULTIMATE.start_my_drv_probe_~d~0#1.base|)), Black: 253#(and (not (= |ULTIMATE.start_ldv_assert_~expression#1| 0)) (= (- 1) |ULTIMATE.start_main_#t~mem48#1|) (not (= |ULTIMATE.start_ldv_assert_#in~expression#1| 0))), Black: 286#(and (= (- 1) |ULTIMATE.start_main_#t~mem49#1|) (not (= |ULTIMATE.start_ldv_assert_#in~expression#1| 0))), 359#(and (<= my_callbackThread1of1ForFork1_~__mptr~0.offset 24) (<= |my_callbackThread1of1ForFork1_#in~arg.offset| 24) (= 0 |ULTIMATE.start_my_drv_probe_#in~data#1.offset|) (<= 24 |my_callbackThread1of1ForFork0_#in~arg.offset|) (<= |my_callbackThread1of1ForFork0_#in~arg.offset| 24) (<= my_callbackThread1of1ForFork1_~dev~0.offset 24) (<= 24 |my_callbackThread1of1ForFork1_#in~arg.offset|) (= |ULTIMATE.start_my_drv_probe_~data#1.offset| 0) (= |my_callbackThread1of1ForFork0_#in~arg.base| |my_callbackThread1of1ForFork1_#in~arg.base|) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~__mptr~0.base) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~arg.base) (<= 24 my_callbackThread1of1ForFork1_~arg.offset) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~data~0.base) (= |ULTIMATE.start_main_~#data~1#1.offset| 0) (<= 24 my_callbackThread1of1ForFork1_~dev~0.offset) (= my_callbackThread1of1ForFork1_~dev~0.base |my_callbackThread1of1ForFork0_#in~arg.base|) (<= my_callbackThread1of1ForFork1_~arg.offset 24) (= my_callbackThread1of1ForFork1_~data~0.offset 0) (<= (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24) |ULTIMATE.start_my_drv_probe_~d~0#1.offset|) (<= 24 my_callbackThread1of1ForFork1_~__mptr~0.offset) (<= |ULTIMATE.start_my_drv_probe_~d~0#1.offset| (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24)) (= |my_callbackThread1of1ForFork0_#in~arg.base| |ULTIMATE.start_my_drv_probe_~d~0#1.base|)), Black: 284#(and (= (- 1) |ULTIMATE.start_main_#t~mem49#1|) (not (= |ULTIMATE.start_ldv_assert_~expression#1| 0)) (not (= |ULTIMATE.start_ldv_assert_#in~expression#1| 0))), Black: 245#(and (not (= |ULTIMATE.start_ldv_assert_~expression#1| 0)) (= (- 1) |ULTIMATE.start_main_#t~mem48#1|) (not (= |ULTIMATE.start_ldv_assert_#in~expression#1| 0)) (= (- 1) (select (select |#memory_int| |ULTIMATE.start_main_~#data~1#1.base|) (+ |ULTIMATE.start_main_~#data~1#1.offset| 24)))), 100#L1735true, 306#(and (= |ULTIMATE.start_my_drv_probe_#res#1| 0) (= |ULTIMATE.start_main_~probe_ret~0#1| 0)), Black: 369#(and (<= my_callbackThread1of1ForFork1_~__mptr~0.offset 24) (<= |my_callbackThread1of1ForFork1_#in~arg.offset| 24) (= 0 |ULTIMATE.start_my_drv_probe_#in~data#1.offset|) (= my_callbackThread1of1ForFork0_~dev~0.base my_callbackThread1of1ForFork1_~data~0.base) (<= 24 |my_callbackThread1of1ForFork0_#in~arg.offset|) (<= |my_callbackThread1of1ForFork0_#in~arg.offset| 24) (<= my_callbackThread1of1ForFork0_~arg.offset 24) (<= my_callbackThread1of1ForFork1_~dev~0.offset 24) (<= 24 |my_callbackThread1of1ForFork1_#in~arg.offset|) (= |ULTIMATE.start_my_drv_probe_~data#1.offset| 0) (= |my_callbackThread1of1ForFork0_#in~arg.base| |my_callbackThread1of1ForFork1_#in~arg.base|) (= my_callbackThread1of1ForFork0_~arg.base my_callbackThread1of1ForFork1_~data~0.base) (<= my_callbackThread1of1ForFork0_~dev~0.offset 24) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~__mptr~0.base) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~arg.base) (<= my_callbackThread1of1ForFork0_~data~0.offset 0) (< 0 (+ my_callbackThread1of1ForFork0_~data~0.offset 1)) (= my_callbackThread1of1ForFork0_~__mptr~0.base my_callbackThread1of1ForFork1_~data~0.base) (<= 24 my_callbackThread1of1ForFork1_~arg.offset) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~data~0.base) (= |ULTIMATE.start_main_~#data~1#1.offset| 0) (<= 24 my_callbackThread1of1ForFork0_~__mptr~0.offset) (<= 24 my_callbackThread1of1ForFork1_~dev~0.offset) (= my_callbackThread1of1ForFork1_~dev~0.base |my_callbackThread1of1ForFork0_#in~arg.base|) (<= my_callbackThread1of1ForFork1_~arg.offset 24) (= my_callbackThread1of1ForFork1_~data~0.offset 0) (<= 24 my_callbackThread1of1ForFork0_~arg.offset) (<= (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24) |ULTIMATE.start_my_drv_probe_~d~0#1.offset|) (<= 24 my_callbackThread1of1ForFork1_~__mptr~0.offset) (= my_callbackThread1of1ForFork1_~data~0.base my_callbackThread1of1ForFork0_~data~0.base) (<= my_callbackThread1of1ForFork0_~__mptr~0.offset 24) (<= 24 my_callbackThread1of1ForFork0_~dev~0.offset) (<= |ULTIMATE.start_my_drv_probe_~d~0#1.offset| (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24)) (= |my_callbackThread1of1ForFork0_#in~arg.base| |ULTIMATE.start_my_drv_probe_~d~0#1.base|) (not (= (select (select |#pthreadsMutex| my_callbackThread1of1ForFork1_~data~0.base) my_callbackThread1of1ForFork1_~data~0.offset) 0))), Black: 365#(and (<= my_callbackThread1of1ForFork1_~__mptr~0.offset 24) (<= |my_callbackThread1of1ForFork1_#in~arg.offset| 24) (= 0 |ULTIMATE.start_my_drv_probe_#in~data#1.offset|) (= my_callbackThread1of1ForFork0_~dev~0.base my_callbackThread1of1ForFork1_~data~0.base) (<= 24 |my_callbackThread1of1ForFork0_#in~arg.offset|) (<= |my_callbackThread1of1ForFork0_#in~arg.offset| 24) (<= my_callbackThread1of1ForFork0_~arg.offset 24) (<= my_callbackThread1of1ForFork1_~dev~0.offset 24) (<= 24 |my_callbackThread1of1ForFork1_#in~arg.offset|) (= |ULTIMATE.start_my_drv_probe_~data#1.offset| 0) (= |my_callbackThread1of1ForFork0_#in~arg.base| |my_callbackThread1of1ForFork1_#in~arg.base|) (= my_callbackThread1of1ForFork0_~arg.base my_callbackThread1of1ForFork1_~data~0.base) (<= my_callbackThread1of1ForFork0_~dev~0.offset 24) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~__mptr~0.base) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~arg.base) (<= 24 my_callbackThread1of1ForFork1_~arg.offset) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~data~0.base) (= |ULTIMATE.start_main_~#data~1#1.offset| 0) (<= 24 my_callbackThread1of1ForFork1_~dev~0.offset) (= my_callbackThread1of1ForFork1_~dev~0.base |my_callbackThread1of1ForFork0_#in~arg.base|) (<= my_callbackThread1of1ForFork1_~arg.offset 24) (= my_callbackThread1of1ForFork1_~data~0.offset 0) (<= 24 my_callbackThread1of1ForFork0_~arg.offset) (<= (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24) |ULTIMATE.start_my_drv_probe_~d~0#1.offset|) (<= 24 my_callbackThread1of1ForFork1_~__mptr~0.offset) (<= 24 my_callbackThread1of1ForFork0_~dev~0.offset) (<= |ULTIMATE.start_my_drv_probe_~d~0#1.offset| (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24)) (= |my_callbackThread1of1ForFork0_#in~arg.base| |ULTIMATE.start_my_drv_probe_~d~0#1.base|) (not (= (select (select |#pthreadsMutex| my_callbackThread1of1ForFork1_~data~0.base) my_callbackThread1of1ForFork1_~data~0.offset) 0))), Black: 361#(and (<= my_callbackThread1of1ForFork1_~__mptr~0.offset 24) (<= |my_callbackThread1of1ForFork1_#in~arg.offset| 24) (= 0 |ULTIMATE.start_my_drv_probe_#in~data#1.offset|) (<= 24 |my_callbackThread1of1ForFork0_#in~arg.offset|) (<= |my_callbackThread1of1ForFork0_#in~arg.offset| 24) (<= my_callbackThread1of1ForFork1_~dev~0.offset 24) (<= 24 |my_callbackThread1of1ForFork1_#in~arg.offset|) (= |ULTIMATE.start_my_drv_probe_~data#1.offset| 0) (= |my_callbackThread1of1ForFork0_#in~arg.base| |my_callbackThread1of1ForFork1_#in~arg.base|) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~__mptr~0.base) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~arg.base) (<= 24 my_callbackThread1of1ForFork1_~arg.offset) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~data~0.base) (= |ULTIMATE.start_main_~#data~1#1.offset| 0) (<= 24 my_callbackThread1of1ForFork1_~dev~0.offset) (= my_callbackThread1of1ForFork1_~dev~0.base |my_callbackThread1of1ForFork0_#in~arg.base|) (<= my_callbackThread1of1ForFork1_~arg.offset 24) (= my_callbackThread1of1ForFork1_~data~0.offset 0) (<= (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24) |ULTIMATE.start_my_drv_probe_~d~0#1.offset|) (<= 24 my_callbackThread1of1ForFork1_~__mptr~0.offset) (<= |ULTIMATE.start_my_drv_probe_~d~0#1.offset| (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24)) (= |my_callbackThread1of1ForFork0_#in~arg.base| |ULTIMATE.start_my_drv_probe_~d~0#1.base|) (not (= (select (select |#pthreadsMutex| my_callbackThread1of1ForFork1_~data~0.base) my_callbackThread1of1ForFork1_~data~0.offset) 0))), Black: 367#(and (<= my_callbackThread1of1ForFork1_~__mptr~0.offset 24) (<= |my_callbackThread1of1ForFork1_#in~arg.offset| 24) (= 0 |ULTIMATE.start_my_drv_probe_#in~data#1.offset|) (= my_callbackThread1of1ForFork0_~dev~0.base my_callbackThread1of1ForFork1_~data~0.base) (<= 24 |my_callbackThread1of1ForFork0_#in~arg.offset|) (<= |my_callbackThread1of1ForFork0_#in~arg.offset| 24) (<= my_callbackThread1of1ForFork0_~arg.offset 24) (<= my_callbackThread1of1ForFork1_~dev~0.offset 24) (<= 24 |my_callbackThread1of1ForFork1_#in~arg.offset|) (= |ULTIMATE.start_my_drv_probe_~data#1.offset| 0) (= |my_callbackThread1of1ForFork0_#in~arg.base| |my_callbackThread1of1ForFork1_#in~arg.base|) (= my_callbackThread1of1ForFork0_~arg.base my_callbackThread1of1ForFork1_~data~0.base) (<= my_callbackThread1of1ForFork0_~dev~0.offset 24) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~__mptr~0.base) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~arg.base) (= my_callbackThread1of1ForFork0_~__mptr~0.base my_callbackThread1of1ForFork1_~data~0.base) (<= 24 my_callbackThread1of1ForFork1_~arg.offset) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~data~0.base) (= |ULTIMATE.start_main_~#data~1#1.offset| 0) (<= 24 my_callbackThread1of1ForFork0_~__mptr~0.offset) (<= 24 my_callbackThread1of1ForFork1_~dev~0.offset) (= my_callbackThread1of1ForFork1_~dev~0.base |my_callbackThread1of1ForFork0_#in~arg.base|) (<= my_callbackThread1of1ForFork1_~arg.offset 24) (= my_callbackThread1of1ForFork1_~data~0.offset 0) (<= 24 my_callbackThread1of1ForFork0_~arg.offset) (<= (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24) |ULTIMATE.start_my_drv_probe_~d~0#1.offset|) (<= 24 my_callbackThread1of1ForFork1_~__mptr~0.offset) (<= my_callbackThread1of1ForFork0_~__mptr~0.offset 24) (<= 24 my_callbackThread1of1ForFork0_~dev~0.offset) (<= |ULTIMATE.start_my_drv_probe_~d~0#1.offset| (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24)) (= |my_callbackThread1of1ForFork0_#in~arg.base| |ULTIMATE.start_my_drv_probe_~d~0#1.base|) (not (= (select (select |#pthreadsMutex| my_callbackThread1of1ForFork1_~data~0.base) my_callbackThread1of1ForFork1_~data~0.offset) 0))), Black: 363#(and (<= my_callbackThread1of1ForFork1_~__mptr~0.offset 24) (<= |my_callbackThread1of1ForFork1_#in~arg.offset| 24) (= 0 |ULTIMATE.start_my_drv_probe_#in~data#1.offset|) (<= 24 |my_callbackThread1of1ForFork0_#in~arg.offset|) (<= |my_callbackThread1of1ForFork0_#in~arg.offset| 24) (<= my_callbackThread1of1ForFork0_~arg.offset 24) (<= my_callbackThread1of1ForFork1_~dev~0.offset 24) (<= 24 |my_callbackThread1of1ForFork1_#in~arg.offset|) (= |ULTIMATE.start_my_drv_probe_~data#1.offset| 0) (= |my_callbackThread1of1ForFork0_#in~arg.base| |my_callbackThread1of1ForFork1_#in~arg.base|) (= my_callbackThread1of1ForFork0_~arg.base my_callbackThread1of1ForFork1_~data~0.base) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~__mptr~0.base) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~arg.base) (<= 24 my_callbackThread1of1ForFork1_~arg.offset) (= |my_callbackThread1of1ForFork0_#in~arg.base| my_callbackThread1of1ForFork1_~data~0.base) (= |ULTIMATE.start_main_~#data~1#1.offset| 0) (<= 24 my_callbackThread1of1ForFork1_~dev~0.offset) (= my_callbackThread1of1ForFork1_~dev~0.base |my_callbackThread1of1ForFork0_#in~arg.base|) (<= my_callbackThread1of1ForFork1_~arg.offset 24) (= my_callbackThread1of1ForFork1_~data~0.offset 0) (<= 24 my_callbackThread1of1ForFork0_~arg.offset) (<= (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24) |ULTIMATE.start_my_drv_probe_~d~0#1.offset|) (<= 24 my_callbackThread1of1ForFork1_~__mptr~0.offset) (<= |ULTIMATE.start_my_drv_probe_~d~0#1.offset| (+ |ULTIMATE.start_my_drv_probe_~data#1.offset| 24)) (= |my_callbackThread1of1ForFork0_#in~arg.base| |ULTIMATE.start_my_drv_probe_~d~0#1.base|) (not (= (select (select |#pthreadsMutex| my_callbackThread1of1ForFork1_~data~0.base) my_callbackThread1of1ForFork1_~data~0.offset) 0))), 22#L1714true, 23#L1711-1true]) [2022-07-13 21:51:10,830 INFO L384 tUnfolder$Statistics]: this new event has 103 ancestors and is cut-off event [2022-07-13 21:51:10,830 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-13 21:51:10,830 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-13 21:51:10,830 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-13 21:51:11,252 INFO L129 PetriNetUnfolder]: 749/1961 cut-off events. [2022-07-13 21:51:11,253 INFO L130 PetriNetUnfolder]: For 575/575 co-relation queries the response was YES. [2022-07-13 21:51:11,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4343 conditions, 1961 events. 749/1961 cut-off events. For 575/575 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 13475 event pairs, 126 based on Foata normal form. 0/1895 useless extension candidates. Maximal degree in co-relation 4330. Up to 665 conditions per place. [2022-07-13 21:51:11,266 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 155 selfloop transitions, 32 changer transitions 0/264 dead transitions. [2022-07-13 21:51:11,267 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 264 transitions, 1104 flow [2022-07-13 21:51:11,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-13 21:51:11,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-13 21:51:11,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2284 transitions. [2022-07-13 21:51:11,273 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5324009324009324 [2022-07-13 21:51:11,274 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2284 transitions. [2022-07-13 21:51:11,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2284 transitions. [2022-07-13 21:51:11,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:11,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2284 transitions. [2022-07-13 21:51:11,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 103.81818181818181) internal successors, (2284), 22 states have internal predecessors, (2284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:11,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 195.0) internal successors, (4485), 23 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:11,286 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 195.0) internal successors, (4485), 23 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:11,287 INFO L186 Difference]: Start difference. First operand has 176 places, 150 transitions, 400 flow. Second operand 22 states and 2284 transitions. [2022-07-13 21:51:11,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 264 transitions, 1104 flow [2022-07-13 21:51:11,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 264 transitions, 1061 flow, removed 0 selfloop flow, removed 16 redundant places. [2022-07-13 21:51:11,293 INFO L242 Difference]: Finished difference. Result has 192 places, 171 transitions, 542 flow [2022-07-13 21:51:11,293 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=542, PETRI_PLACES=192, PETRI_TRANSITIONS=171} [2022-07-13 21:51:11,294 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 11 predicate places. [2022-07-13 21:51:11,294 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 171 transitions, 542 flow [2022-07-13 21:51:11,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:11,295 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:11,295 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:11,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 21:51:11,296 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:11,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:11,296 INFO L85 PathProgramCache]: Analyzing trace with hash -424530496, now seen corresponding path program 3 times [2022-07-13 21:51:11,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:11,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108035646] [2022-07-13 21:51:11,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:11,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:11,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:11,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:11,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108035646] [2022-07-13 21:51:11,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108035646] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:11,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:11,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-13 21:51:11,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630669194] [2022-07-13 21:51:11,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:11,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-13 21:51:11,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:11,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-13 21:51:11,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-07-13 21:51:11,866 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 195 [2022-07-13 21:51:11,873 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 171 transitions, 542 flow. Second operand has 19 states, 19 states have (on average 134.31578947368422) internal successors, (2552), 19 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:11,873 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:11,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 195 [2022-07-13 21:51:11,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:13,520 INFO L129 PetriNetUnfolder]: 1035/2621 cut-off events. [2022-07-13 21:51:13,520 INFO L130 PetriNetUnfolder]: For 2006/2052 co-relation queries the response was YES. [2022-07-13 21:51:13,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6709 conditions, 2621 events. 1035/2621 cut-off events. For 2006/2052 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 19791 event pairs, 197 based on Foata normal form. 26/2539 useless extension candidates. Maximal degree in co-relation 6685. Up to 497 conditions per place. [2022-07-13 21:51:13,546 INFO L132 encePairwiseOnDemand]: 175/195 looper letters, 163 selfloop transitions, 33 changer transitions 0/304 dead transitions. [2022-07-13 21:51:13,546 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 304 transitions, 1545 flow [2022-07-13 21:51:13,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-13 21:51:13,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-07-13 21:51:13,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2658 transitions. [2022-07-13 21:51:13,551 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7174089068825911 [2022-07-13 21:51:13,552 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2658 transitions. [2022-07-13 21:51:13,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2658 transitions. [2022-07-13 21:51:13,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:13,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2658 transitions. [2022-07-13 21:51:13,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 139.89473684210526) internal successors, (2658), 19 states have internal predecessors, (2658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:13,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 195.0) internal successors, (3900), 20 states have internal predecessors, (3900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:13,577 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 195.0) internal successors, (3900), 20 states have internal predecessors, (3900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:13,577 INFO L186 Difference]: Start difference. First operand has 192 places, 171 transitions, 542 flow. Second operand 19 states and 2658 transitions. [2022-07-13 21:51:13,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 304 transitions, 1545 flow [2022-07-13 21:51:13,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 304 transitions, 1513 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-07-13 21:51:13,586 INFO L242 Difference]: Finished difference. Result has 210 places, 186 transitions, 707 flow [2022-07-13 21:51:13,587 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=707, PETRI_PLACES=210, PETRI_TRANSITIONS=186} [2022-07-13 21:51:13,587 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 29 predicate places. [2022-07-13 21:51:13,587 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 186 transitions, 707 flow [2022-07-13 21:51:13,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 134.31578947368422) internal successors, (2552), 19 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:13,588 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:13,588 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:13,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 21:51:13,588 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:13,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:13,589 INFO L85 PathProgramCache]: Analyzing trace with hash -97507748, now seen corresponding path program 4 times [2022-07-13 21:51:13,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:13,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040078915] [2022-07-13 21:51:13,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:13,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:14,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:14,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:14,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040078915] [2022-07-13 21:51:14,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040078915] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:14,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:14,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-13 21:51:14,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474089107] [2022-07-13 21:51:14,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:14,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-13 21:51:14,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:14,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-13 21:51:14,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-07-13 21:51:14,049 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-13 21:51:14,050 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 186 transitions, 707 flow. Second operand has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:14,050 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:14,050 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-13 21:51:14,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:15,240 INFO L129 PetriNetUnfolder]: 1204/3156 cut-off events. [2022-07-13 21:51:15,240 INFO L130 PetriNetUnfolder]: For 2645/2675 co-relation queries the response was YES. [2022-07-13 21:51:15,286 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8539 conditions, 3156 events. 1204/3156 cut-off events. For 2645/2675 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 25291 event pairs, 67 based on Foata normal form. 30/3151 useless extension candidates. Maximal degree in co-relation 8508. Up to 609 conditions per place. [2022-07-13 21:51:15,294 INFO L132 encePairwiseOnDemand]: 167/195 looper letters, 143 selfloop transitions, 50 changer transitions 0/276 dead transitions. [2022-07-13 21:51:15,295 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 276 transitions, 1408 flow [2022-07-13 21:51:15,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-13 21:51:15,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-07-13 21:51:15,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2072 transitions. [2022-07-13 21:51:15,297 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5312820512820513 [2022-07-13 21:51:15,298 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2072 transitions. [2022-07-13 21:51:15,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2072 transitions. [2022-07-13 21:51:15,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:15,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2072 transitions. [2022-07-13 21:51:15,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 103.6) internal successors, (2072), 20 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:15,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 195.0) internal successors, (4095), 21 states have internal predecessors, (4095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:15,305 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 195.0) internal successors, (4095), 21 states have internal predecessors, (4095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:15,305 INFO L186 Difference]: Start difference. First operand has 210 places, 186 transitions, 707 flow. Second operand 20 states and 2072 transitions. [2022-07-13 21:51:15,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 276 transitions, 1408 flow [2022-07-13 21:51:15,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 276 transitions, 1372 flow, removed 5 selfloop flow, removed 10 redundant places. [2022-07-13 21:51:15,319 INFO L242 Difference]: Finished difference. Result has 227 places, 201 transitions, 915 flow [2022-07-13 21:51:15,319 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=915, PETRI_PLACES=227, PETRI_TRANSITIONS=201} [2022-07-13 21:51:15,320 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 46 predicate places. [2022-07-13 21:51:15,320 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 201 transitions, 915 flow [2022-07-13 21:51:15,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:15,321 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:15,321 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:15,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 21:51:15,321 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:15,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:15,322 INFO L85 PathProgramCache]: Analyzing trace with hash 184447290, now seen corresponding path program 5 times [2022-07-13 21:51:15,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:15,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058972163] [2022-07-13 21:51:15,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:15,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:15,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:15,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:15,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058972163] [2022-07-13 21:51:15,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058972163] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:15,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:15,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-13 21:51:15,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910223450] [2022-07-13 21:51:15,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:15,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-13 21:51:15,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:15,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-13 21:51:15,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-07-13 21:51:15,713 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-13 21:51:15,715 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 201 transitions, 915 flow. Second operand has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:15,715 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:15,715 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-13 21:51:15,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:17,150 INFO L129 PetriNetUnfolder]: 1356/3599 cut-off events. [2022-07-13 21:51:17,150 INFO L130 PetriNetUnfolder]: For 6006/6052 co-relation queries the response was YES. [2022-07-13 21:51:17,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10801 conditions, 3599 events. 1356/3599 cut-off events. For 6006/6052 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 29539 event pairs, 146 based on Foata normal form. 39/3579 useless extension candidates. Maximal degree in co-relation 10763. Up to 1369 conditions per place. [2022-07-13 21:51:17,173 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 188 selfloop transitions, 51 changer transitions 0/322 dead transitions. [2022-07-13 21:51:17,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 322 transitions, 2013 flow [2022-07-13 21:51:17,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-13 21:51:17,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-13 21:51:17,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2284 transitions. [2022-07-13 21:51:17,176 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5324009324009324 [2022-07-13 21:51:17,176 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2284 transitions. [2022-07-13 21:51:17,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2284 transitions. [2022-07-13 21:51:17,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:17,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2284 transitions. [2022-07-13 21:51:17,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 103.81818181818181) internal successors, (2284), 22 states have internal predecessors, (2284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:17,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 195.0) internal successors, (4485), 23 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:17,183 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 195.0) internal successors, (4485), 23 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:17,183 INFO L186 Difference]: Start difference. First operand has 227 places, 201 transitions, 915 flow. Second operand 22 states and 2284 transitions. [2022-07-13 21:51:17,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 322 transitions, 2013 flow [2022-07-13 21:51:17,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 322 transitions, 1952 flow, removed 6 selfloop flow, removed 9 redundant places. [2022-07-13 21:51:17,208 INFO L242 Difference]: Finished difference. Result has 249 places, 222 transitions, 1208 flow [2022-07-13 21:51:17,209 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1208, PETRI_PLACES=249, PETRI_TRANSITIONS=222} [2022-07-13 21:51:17,210 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 68 predicate places. [2022-07-13 21:51:17,210 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 222 transitions, 1208 flow [2022-07-13 21:51:17,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:17,210 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:17,211 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:17,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 21:51:17,211 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:17,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:17,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1362620956, now seen corresponding path program 6 times [2022-07-13 21:51:17,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:17,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935055049] [2022-07-13 21:51:17,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:17,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:17,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:17,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:17,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935055049] [2022-07-13 21:51:17,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935055049] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:17,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:17,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-13 21:51:17,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893086211] [2022-07-13 21:51:17,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:17,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-13 21:51:17,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:17,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-13 21:51:17,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-07-13 21:51:17,644 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-13 21:51:17,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 222 transitions, 1208 flow. Second operand has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:17,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:17,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-13 21:51:17,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:18,927 INFO L129 PetriNetUnfolder]: 1364/3699 cut-off events. [2022-07-13 21:51:18,928 INFO L130 PetriNetUnfolder]: For 8340/8364 co-relation queries the response was YES. [2022-07-13 21:51:18,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11462 conditions, 3699 events. 1364/3699 cut-off events. For 8340/8364 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 29998 event pairs, 555 based on Foata normal form. 20/3643 useless extension candidates. Maximal degree in co-relation 11413. Up to 1456 conditions per place. [2022-07-13 21:51:18,959 INFO L132 encePairwiseOnDemand]: 170/195 looper letters, 181 selfloop transitions, 56 changer transitions 0/320 dead transitions. [2022-07-13 21:51:18,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 320 transitions, 2229 flow [2022-07-13 21:51:18,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-13 21:51:18,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-07-13 21:51:18,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2167 transitions. [2022-07-13 21:51:18,964 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5291819291819292 [2022-07-13 21:51:18,964 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2167 transitions. [2022-07-13 21:51:18,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2167 transitions. [2022-07-13 21:51:18,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:18,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2167 transitions. [2022-07-13 21:51:18,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 103.19047619047619) internal successors, (2167), 21 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:18,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 195.0) internal successors, (4290), 22 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:18,972 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 195.0) internal successors, (4290), 22 states have internal predecessors, (4290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:18,972 INFO L186 Difference]: Start difference. First operand has 249 places, 222 transitions, 1208 flow. Second operand 21 states and 2167 transitions. [2022-07-13 21:51:18,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 320 transitions, 2229 flow [2022-07-13 21:51:19,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 320 transitions, 2164 flow, removed 17 selfloop flow, removed 7 redundant places. [2022-07-13 21:51:19,008 INFO L242 Difference]: Finished difference. Result has 274 places, 241 transitions, 1528 flow [2022-07-13 21:51:19,008 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=1149, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1528, PETRI_PLACES=274, PETRI_TRANSITIONS=241} [2022-07-13 21:51:19,009 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 93 predicate places. [2022-07-13 21:51:19,009 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 241 transitions, 1528 flow [2022-07-13 21:51:19,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:19,009 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:19,010 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:19,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 21:51:19,010 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:19,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:19,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1009366940, now seen corresponding path program 7 times [2022-07-13 21:51:19,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:19,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838414879] [2022-07-13 21:51:19,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:19,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:19,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:19,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:19,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838414879] [2022-07-13 21:51:19,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838414879] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:19,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:19,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-13 21:51:19,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141425045] [2022-07-13 21:51:19,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:19,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-13 21:51:19,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:19,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-13 21:51:19,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-07-13 21:51:19,427 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-13 21:51:19,428 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 241 transitions, 1528 flow. Second operand has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:19,428 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:19,428 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-13 21:51:19,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:20,893 INFO L129 PetriNetUnfolder]: 1482/4117 cut-off events. [2022-07-13 21:51:20,893 INFO L130 PetriNetUnfolder]: For 12017/12091 co-relation queries the response was YES. [2022-07-13 21:51:20,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13196 conditions, 4117 events. 1482/4117 cut-off events. For 12017/12091 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 35220 event pairs, 102 based on Foata normal form. 37/4110 useless extension candidates. Maximal degree in co-relation 13134. Up to 757 conditions per place. [2022-07-13 21:51:20,920 INFO L132 encePairwiseOnDemand]: 167/195 looper letters, 183 selfloop transitions, 91 changer transitions 0/357 dead transitions. [2022-07-13 21:51:20,920 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 357 transitions, 2717 flow [2022-07-13 21:51:20,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-13 21:51:20,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-13 21:51:20,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2292 transitions. [2022-07-13 21:51:20,923 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5342657342657343 [2022-07-13 21:51:20,923 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2292 transitions. [2022-07-13 21:51:20,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2292 transitions. [2022-07-13 21:51:20,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:20,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2292 transitions. [2022-07-13 21:51:20,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 104.18181818181819) internal successors, (2292), 22 states have internal predecessors, (2292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:20,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 195.0) internal successors, (4485), 23 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:20,932 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 195.0) internal successors, (4485), 23 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:20,932 INFO L186 Difference]: Start difference. First operand has 274 places, 241 transitions, 1528 flow. Second operand 22 states and 2292 transitions. [2022-07-13 21:51:20,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 357 transitions, 2717 flow [2022-07-13 21:51:20,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 357 transitions, 2643 flow, removed 29 selfloop flow, removed 6 redundant places. [2022-07-13 21:51:20,984 INFO L242 Difference]: Finished difference. Result has 295 places, 260 transitions, 1955 flow [2022-07-13 21:51:20,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=1454, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1955, PETRI_PLACES=295, PETRI_TRANSITIONS=260} [2022-07-13 21:51:20,985 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 114 predicate places. [2022-07-13 21:51:20,986 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 260 transitions, 1955 flow [2022-07-13 21:51:20,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:20,986 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:20,986 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:20,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 21:51:20,987 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:20,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:20,987 INFO L85 PathProgramCache]: Analyzing trace with hash -218328318, now seen corresponding path program 8 times [2022-07-13 21:51:20,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:20,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291914911] [2022-07-13 21:51:20,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:20,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:21,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:21,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:21,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291914911] [2022-07-13 21:51:21,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291914911] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:21,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:21,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-07-13 21:51:21,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943685668] [2022-07-13 21:51:21,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:21,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-13 21:51:21,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:21,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-13 21:51:21,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2022-07-13 21:51:21,522 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 195 [2022-07-13 21:51:21,524 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 260 transitions, 1955 flow. Second operand has 24 states, 24 states have (on average 91.83333333333333) internal successors, (2204), 24 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:21,524 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:21,524 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 195 [2022-07-13 21:51:21,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:28,477 INFO L129 PetriNetUnfolder]: 3146/7105 cut-off events. [2022-07-13 21:51:28,477 INFO L130 PetriNetUnfolder]: For 27134/27214 co-relation queries the response was YES. [2022-07-13 21:51:28,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24711 conditions, 7105 events. 3146/7105 cut-off events. For 27134/27214 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 57090 event pairs, 468 based on Foata normal form. 49/7072 useless extension candidates. Maximal degree in co-relation 24643. Up to 1841 conditions per place. [2022-07-13 21:51:28,533 INFO L132 encePairwiseOnDemand]: 165/195 looper letters, 407 selfloop transitions, 183 changer transitions 0/655 dead transitions. [2022-07-13 21:51:28,533 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 655 transitions, 5975 flow [2022-07-13 21:51:28,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-07-13 21:51:28,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2022-07-13 21:51:28,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 5284 transitions. [2022-07-13 21:51:28,542 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.4926806526806527 [2022-07-13 21:51:28,542 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 5284 transitions. [2022-07-13 21:51:28,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 5284 transitions. [2022-07-13 21:51:28,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:28,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 5284 transitions. [2022-07-13 21:51:28,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 56 states, 55 states have (on average 96.07272727272728) internal successors, (5284), 55 states have internal predecessors, (5284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:28,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 56 states, 56 states have (on average 195.0) internal successors, (10920), 56 states have internal predecessors, (10920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:28,563 INFO L81 ComplementDD]: Finished complementDD. Result has 56 states, 56 states have (on average 195.0) internal successors, (10920), 56 states have internal predecessors, (10920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:28,563 INFO L186 Difference]: Start difference. First operand has 295 places, 260 transitions, 1955 flow. Second operand 55 states and 5284 transitions. [2022-07-13 21:51:28,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 655 transitions, 5975 flow [2022-07-13 21:51:28,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 655 transitions, 5718 flow, removed 47 selfloop flow, removed 9 redundant places. [2022-07-13 21:51:28,696 INFO L242 Difference]: Finished difference. Result has 361 places, 373 transitions, 3505 flow [2022-07-13 21:51:28,697 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=1842, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=55, PETRI_FLOW=3505, PETRI_PLACES=361, PETRI_TRANSITIONS=373} [2022-07-13 21:51:28,698 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 180 predicate places. [2022-07-13 21:51:28,698 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 373 transitions, 3505 flow [2022-07-13 21:51:28,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 91.83333333333333) internal successors, (2204), 24 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:28,698 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:28,699 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:28,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 21:51:28,699 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:28,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:28,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1561724186, now seen corresponding path program 9 times [2022-07-13 21:51:28,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:28,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56931881] [2022-07-13 21:51:28,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:28,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:29,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:29,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:29,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56931881] [2022-07-13 21:51:29,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56931881] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:29,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:29,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-07-13 21:51:29,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876243894] [2022-07-13 21:51:29,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:29,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-13 21:51:29,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:29,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-13 21:51:29,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-07-13 21:51:29,306 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-07-13 21:51:29,307 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 373 transitions, 3505 flow. Second operand has 22 states, 22 states have (on average 101.72727272727273) internal successors, (2238), 22 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:29,307 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:29,307 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-07-13 21:51:29,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:32,729 INFO L129 PetriNetUnfolder]: 4150/10178 cut-off events. [2022-07-13 21:51:32,729 INFO L130 PetriNetUnfolder]: For 46108/46318 co-relation queries the response was YES. [2022-07-13 21:51:32,805 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36445 conditions, 10178 events. 4150/10178 cut-off events. For 46108/46318 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 95234 event pairs, 1917 based on Foata normal form. 104/9973 useless extension candidates. Maximal degree in co-relation 36356. Up to 2831 conditions per place. [2022-07-13 21:51:32,836 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 430 selfloop transitions, 85 changer transitions 0/626 dead transitions. [2022-07-13 21:51:32,836 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 626 transitions, 7280 flow [2022-07-13 21:51:32,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-13 21:51:32,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-07-13 21:51:32,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2477 transitions. [2022-07-13 21:51:32,839 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5522853957636567 [2022-07-13 21:51:32,839 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2477 transitions. [2022-07-13 21:51:32,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2477 transitions. [2022-07-13 21:51:32,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:32,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2477 transitions. [2022-07-13 21:51:32,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 107.69565217391305) internal successors, (2477), 23 states have internal predecessors, (2477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:32,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 195.0) internal successors, (4680), 24 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:32,848 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 195.0) internal successors, (4680), 24 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:32,848 INFO L186 Difference]: Start difference. First operand has 361 places, 373 transitions, 3505 flow. Second operand 23 states and 2477 transitions. [2022-07-13 21:51:32,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 626 transitions, 7280 flow [2022-07-13 21:51:33,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 626 transitions, 6838 flow, removed 151 selfloop flow, removed 10 redundant places. [2022-07-13 21:51:33,184 INFO L242 Difference]: Finished difference. Result has 379 places, 395 transitions, 3630 flow [2022-07-13 21:51:33,185 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=3144, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=3630, PETRI_PLACES=379, PETRI_TRANSITIONS=395} [2022-07-13 21:51:33,185 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 198 predicate places. [2022-07-13 21:51:33,185 INFO L495 AbstractCegarLoop]: Abstraction has has 379 places, 395 transitions, 3630 flow [2022-07-13 21:51:33,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 101.72727272727273) internal successors, (2238), 22 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:33,186 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:33,186 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:33,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-13 21:51:33,187 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:33,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:33,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1125317570, now seen corresponding path program 10 times [2022-07-13 21:51:33,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:33,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236552537] [2022-07-13 21:51:33,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:33,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:33,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:33,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:33,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236552537] [2022-07-13 21:51:33,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236552537] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:33,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:33,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-07-13 21:51:33,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206876223] [2022-07-13 21:51:33,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:33,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-13 21:51:33,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:33,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-13 21:51:33,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-07-13 21:51:33,692 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-07-13 21:51:33,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 395 transitions, 3630 flow. Second operand has 22 states, 22 states have (on average 101.72727272727273) internal successors, (2238), 22 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:33,694 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:33,694 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-07-13 21:51:33,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:37,092 INFO L129 PetriNetUnfolder]: 4131/10351 cut-off events. [2022-07-13 21:51:37,093 INFO L130 PetriNetUnfolder]: For 50188/50345 co-relation queries the response was YES. [2022-07-13 21:51:37,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38199 conditions, 10351 events. 4131/10351 cut-off events. For 50188/50345 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 98288 event pairs, 1393 based on Foata normal form. 127/10194 useless extension candidates. Maximal degree in co-relation 38103. Up to 2831 conditions per place. [2022-07-13 21:51:37,222 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 415 selfloop transitions, 111 changer transitions 0/637 dead transitions. [2022-07-13 21:51:37,222 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 637 transitions, 7179 flow [2022-07-13 21:51:37,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-13 21:51:37,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-07-13 21:51:37,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2487 transitions. [2022-07-13 21:51:37,225 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5545150501672241 [2022-07-13 21:51:37,225 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2487 transitions. [2022-07-13 21:51:37,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2487 transitions. [2022-07-13 21:51:37,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:37,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2487 transitions. [2022-07-13 21:51:37,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 108.1304347826087) internal successors, (2487), 23 states have internal predecessors, (2487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:37,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 195.0) internal successors, (4680), 24 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:37,233 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 195.0) internal successors, (4680), 24 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:37,233 INFO L186 Difference]: Start difference. First operand has 379 places, 395 transitions, 3630 flow. Second operand 23 states and 2487 transitions. [2022-07-13 21:51:37,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 637 transitions, 7179 flow [2022-07-13 21:51:37,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 637 transitions, 7015 flow, removed 27 selfloop flow, removed 15 redundant places. [2022-07-13 21:51:37,707 INFO L242 Difference]: Finished difference. Result has 392 places, 413 transitions, 4072 flow [2022-07-13 21:51:37,708 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=3474, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=4072, PETRI_PLACES=392, PETRI_TRANSITIONS=413} [2022-07-13 21:51:37,708 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 211 predicate places. [2022-07-13 21:51:37,709 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 413 transitions, 4072 flow [2022-07-13 21:51:37,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 101.72727272727273) internal successors, (2238), 22 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:37,709 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:37,709 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:37,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-13 21:51:37,709 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:37,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:37,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1051639876, now seen corresponding path program 11 times [2022-07-13 21:51:37,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:37,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630767882] [2022-07-13 21:51:37,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:37,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:38,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:38,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:38,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630767882] [2022-07-13 21:51:38,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630767882] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:38,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:38,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-13 21:51:38,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112949946] [2022-07-13 21:51:38,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:38,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-13 21:51:38,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:38,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-13 21:51:38,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-07-13 21:51:38,101 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-07-13 21:51:38,102 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 413 transitions, 4072 flow. Second operand has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:38,102 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:38,102 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-07-13 21:51:38,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:40,394 INFO L129 PetriNetUnfolder]: 1778/5845 cut-off events. [2022-07-13 21:51:40,394 INFO L130 PetriNetUnfolder]: For 42813/43027 co-relation queries the response was YES. [2022-07-13 21:51:40,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24502 conditions, 5845 events. 1778/5845 cut-off events. For 42813/43027 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 57122 event pairs, 605 based on Foata normal form. 66/5670 useless extension candidates. Maximal degree in co-relation 24400. Up to 1256 conditions per place. [2022-07-13 21:51:40,464 INFO L132 encePairwiseOnDemand]: 177/195 looper letters, 298 selfloop transitions, 82 changer transitions 0/568 dead transitions. [2022-07-13 21:51:40,464 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 568 transitions, 6684 flow [2022-07-13 21:51:40,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-13 21:51:40,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-07-13 21:51:40,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2526 transitions. [2022-07-13 21:51:40,466 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7619909502262443 [2022-07-13 21:51:40,466 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2526 transitions. [2022-07-13 21:51:40,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2526 transitions. [2022-07-13 21:51:40,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:40,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2526 transitions. [2022-07-13 21:51:40,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 148.58823529411765) internal successors, (2526), 17 states have internal predecessors, (2526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:40,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:40,473 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:40,473 INFO L186 Difference]: Start difference. First operand has 392 places, 413 transitions, 4072 flow. Second operand 17 states and 2526 transitions. [2022-07-13 21:51:40,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 568 transitions, 6684 flow [2022-07-13 21:51:40,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 568 transitions, 6400 flow, removed 80 selfloop flow, removed 16 redundant places. [2022-07-13 21:51:40,753 INFO L242 Difference]: Finished difference. Result has 397 places, 430 transitions, 4411 flow [2022-07-13 21:51:40,753 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=3884, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4411, PETRI_PLACES=397, PETRI_TRANSITIONS=430} [2022-07-13 21:51:40,753 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 216 predicate places. [2022-07-13 21:51:40,753 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 430 transitions, 4411 flow [2022-07-13 21:51:40,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:40,754 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:40,754 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:40,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-13 21:51:40,755 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:40,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:40,755 INFO L85 PathProgramCache]: Analyzing trace with hash -382562200, now seen corresponding path program 12 times [2022-07-13 21:51:40,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:40,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601771754] [2022-07-13 21:51:40,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:40,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:41,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:41,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:41,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601771754] [2022-07-13 21:51:41,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601771754] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:41,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:41,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-13 21:51:41,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110990780] [2022-07-13 21:51:41,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:41,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-13 21:51:41,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:41,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-13 21:51:41,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-07-13 21:51:41,172 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-07-13 21:51:41,173 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 430 transitions, 4411 flow. Second operand has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:41,173 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:41,173 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-07-13 21:51:41,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:43,523 INFO L129 PetriNetUnfolder]: 1815/6130 cut-off events. [2022-07-13 21:51:43,523 INFO L130 PetriNetUnfolder]: For 46149/46378 co-relation queries the response was YES. [2022-07-13 21:51:43,583 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25494 conditions, 6130 events. 1815/6130 cut-off events. For 46149/46378 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 60955 event pairs, 596 based on Foata normal form. 71/5966 useless extension candidates. Maximal degree in co-relation 25387. Up to 1256 conditions per place. [2022-07-13 21:51:43,601 INFO L132 encePairwiseOnDemand]: 178/195 looper letters, 274 selfloop transitions, 99 changer transitions 0/561 dead transitions. [2022-07-13 21:51:43,601 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 561 transitions, 6552 flow [2022-07-13 21:51:43,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-13 21:51:43,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-07-13 21:51:43,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2519 transitions. [2022-07-13 21:51:43,603 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7598793363499246 [2022-07-13 21:51:43,603 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2519 transitions. [2022-07-13 21:51:43,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2519 transitions. [2022-07-13 21:51:43,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:43,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2519 transitions. [2022-07-13 21:51:43,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 148.1764705882353) internal successors, (2519), 17 states have internal predecessors, (2519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:43,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:43,608 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:43,608 INFO L186 Difference]: Start difference. First operand has 397 places, 430 transitions, 4411 flow. Second operand 17 states and 2519 transitions. [2022-07-13 21:51:43,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 561 transitions, 6552 flow [2022-07-13 21:51:43,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 561 transitions, 6374 flow, removed 31 selfloop flow, removed 11 redundant places. [2022-07-13 21:51:43,921 INFO L242 Difference]: Finished difference. Result has 405 places, 438 transitions, 4645 flow [2022-07-13 21:51:43,921 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=4233, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4645, PETRI_PLACES=405, PETRI_TRANSITIONS=438} [2022-07-13 21:51:43,922 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 224 predicate places. [2022-07-13 21:51:43,922 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 438 transitions, 4645 flow [2022-07-13 21:51:43,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:43,923 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:43,923 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:43,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-13 21:51:43,923 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:43,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:43,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1263906712, now seen corresponding path program 13 times [2022-07-13 21:51:43,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:43,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531412770] [2022-07-13 21:51:43,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:43,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:44,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:44,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:44,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531412770] [2022-07-13 21:51:44,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531412770] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:44,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:44,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-13 21:51:44,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948783356] [2022-07-13 21:51:44,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:44,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-13 21:51:44,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:44,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-13 21:51:44,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-07-13 21:51:44,361 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-07-13 21:51:44,363 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 438 transitions, 4645 flow. Second operand has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:44,363 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:44,363 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-07-13 21:51:44,364 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:46,723 INFO L129 PetriNetUnfolder]: 1575/5298 cut-off events. [2022-07-13 21:51:46,723 INFO L130 PetriNetUnfolder]: For 43572/43783 co-relation queries the response was YES. [2022-07-13 21:51:46,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22691 conditions, 5298 events. 1575/5298 cut-off events. For 43572/43783 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 50393 event pairs, 572 based on Foata normal form. 62/5133 useless extension candidates. Maximal degree in co-relation 22581. Up to 1256 conditions per place. [2022-07-13 21:51:46,793 INFO L132 encePairwiseOnDemand]: 178/195 looper letters, 282 selfloop transitions, 91 changer transitions 0/561 dead transitions. [2022-07-13 21:51:46,793 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 561 transitions, 6729 flow [2022-07-13 21:51:46,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-13 21:51:46,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-07-13 21:51:46,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2520 transitions. [2022-07-13 21:51:46,795 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7601809954751131 [2022-07-13 21:51:46,795 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2520 transitions. [2022-07-13 21:51:46,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2520 transitions. [2022-07-13 21:51:46,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:46,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2520 transitions. [2022-07-13 21:51:46,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 148.23529411764707) internal successors, (2520), 17 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:46,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:46,799 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:46,800 INFO L186 Difference]: Start difference. First operand has 405 places, 438 transitions, 4645 flow. Second operand 17 states and 2520 transitions. [2022-07-13 21:51:46,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 561 transitions, 6729 flow [2022-07-13 21:51:47,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 561 transitions, 6513 flow, removed 25 selfloop flow, removed 13 redundant places. [2022-07-13 21:51:47,074 INFO L242 Difference]: Finished difference. Result has 412 places, 449 transitions, 4934 flow [2022-07-13 21:51:47,074 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=4399, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4934, PETRI_PLACES=412, PETRI_TRANSITIONS=449} [2022-07-13 21:51:47,075 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 231 predicate places. [2022-07-13 21:51:47,075 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 449 transitions, 4934 flow [2022-07-13 21:51:47,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:47,075 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:47,075 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:47,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-13 21:51:47,076 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:47,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:47,076 INFO L85 PathProgramCache]: Analyzing trace with hash -569528590, now seen corresponding path program 14 times [2022-07-13 21:51:47,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:47,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272915632] [2022-07-13 21:51:47,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:47,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:47,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:47,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:47,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272915632] [2022-07-13 21:51:47,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272915632] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:47,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:47,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-07-13 21:51:47,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176820508] [2022-07-13 21:51:47,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:47,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-07-13 21:51:47,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:47,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-07-13 21:51:47,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2022-07-13 21:51:47,780 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 195 [2022-07-13 21:51:47,781 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 449 transitions, 4934 flow. Second operand has 25 states, 25 states have (on average 91.72) internal successors, (2293), 25 states have internal predecessors, (2293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:47,781 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:47,781 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 195 [2022-07-13 21:51:47,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:51:56,184 INFO L129 PetriNetUnfolder]: 6138/14560 cut-off events. [2022-07-13 21:51:56,184 INFO L130 PetriNetUnfolder]: For 108247/108343 co-relation queries the response was YES. [2022-07-13 21:51:56,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61520 conditions, 14560 events. 6138/14560 cut-off events. For 108247/108343 co-relation queries the response was YES. Maximal size of possible extension queue 615. Compared 139882 event pairs, 1368 based on Foata normal form. 54/14374 useless extension candidates. Maximal degree in co-relation 61406. Up to 2072 conditions per place. [2022-07-13 21:51:56,371 INFO L132 encePairwiseOnDemand]: 162/195 looper letters, 585 selfloop transitions, 373 changer transitions 0/1023 dead transitions. [2022-07-13 21:51:56,372 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1023 transitions, 13659 flow [2022-07-13 21:51:56,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-07-13 21:51:56,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-07-13 21:51:56,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 3942 transitions. [2022-07-13 21:51:56,375 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5053846153846154 [2022-07-13 21:51:56,376 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 3942 transitions. [2022-07-13 21:51:56,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 3942 transitions. [2022-07-13 21:51:56,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:51:56,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 3942 transitions. [2022-07-13 21:51:56,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 98.55) internal successors, (3942), 40 states have internal predecessors, (3942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:56,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 195.0) internal successors, (7995), 41 states have internal predecessors, (7995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:56,388 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 195.0) internal successors, (7995), 41 states have internal predecessors, (7995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:56,388 INFO L186 Difference]: Start difference. First operand has 412 places, 449 transitions, 4934 flow. Second operand 40 states and 3942 transitions. [2022-07-13 21:51:56,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1023 transitions, 13659 flow [2022-07-13 21:51:57,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 1023 transitions, 13302 flow, removed 91 selfloop flow, removed 12 redundant places. [2022-07-13 21:51:57,493 INFO L242 Difference]: Finished difference. Result has 455 places, 672 transitions, 9639 flow [2022-07-13 21:51:57,493 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=4720, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=161, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=9639, PETRI_PLACES=455, PETRI_TRANSITIONS=672} [2022-07-13 21:51:57,493 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 274 predicate places. [2022-07-13 21:51:57,494 INFO L495 AbstractCegarLoop]: Abstraction has has 455 places, 672 transitions, 9639 flow [2022-07-13 21:51:57,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 91.72) internal successors, (2293), 25 states have internal predecessors, (2293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:57,494 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:51:57,494 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:51:57,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-13 21:51:57,494 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:51:57,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:51:57,495 INFO L85 PathProgramCache]: Analyzing trace with hash -299335042, now seen corresponding path program 15 times [2022-07-13 21:51:57,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:51:57,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588889294] [2022-07-13 21:51:57,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:51:57,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:51:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:51:57,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:51:57,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:51:57,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588889294] [2022-07-13 21:51:57,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588889294] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:51:57,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:51:57,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-13 21:51:57,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890659641] [2022-07-13 21:51:57,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:51:57,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-13 21:51:57,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:51:57,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-13 21:51:57,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-07-13 21:51:57,883 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-13 21:51:57,884 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 672 transitions, 9639 flow. Second operand has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:51:57,884 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:51:57,884 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-13 21:51:57,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:52:02,166 INFO L129 PetriNetUnfolder]: 3952/12607 cut-off events. [2022-07-13 21:52:02,166 INFO L130 PetriNetUnfolder]: For 105706/106809 co-relation queries the response was YES. [2022-07-13 21:52:02,320 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52756 conditions, 12607 events. 3952/12607 cut-off events. For 105706/106809 co-relation queries the response was YES. Maximal size of possible extension queue 536. Compared 138395 event pairs, 840 based on Foata normal form. 146/12335 useless extension candidates. Maximal degree in co-relation 52627. Up to 2791 conditions per place. [2022-07-13 21:52:02,360 INFO L132 encePairwiseOnDemand]: 167/195 looper letters, 433 selfloop transitions, 233 changer transitions 0/972 dead transitions. [2022-07-13 21:52:02,360 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 972 transitions, 14814 flow [2022-07-13 21:52:02,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-13 21:52:02,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-13 21:52:02,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2284 transitions. [2022-07-13 21:52:02,362 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5324009324009324 [2022-07-13 21:52:02,363 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2284 transitions. [2022-07-13 21:52:02,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2284 transitions. [2022-07-13 21:52:02,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:52:02,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2284 transitions. [2022-07-13 21:52:02,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 103.81818181818181) internal successors, (2284), 22 states have internal predecessors, (2284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:02,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 195.0) internal successors, (4485), 23 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:02,368 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 195.0) internal successors, (4485), 23 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:02,368 INFO L186 Difference]: Start difference. First operand has 455 places, 672 transitions, 9639 flow. Second operand 22 states and 2284 transitions. [2022-07-13 21:52:02,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 972 transitions, 14814 flow [2022-07-13 21:52:03,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 972 transitions, 14428 flow, removed 37 selfloop flow, removed 11 redundant places. [2022-07-13 21:52:03,121 INFO L242 Difference]: Finished difference. Result has 473 places, 759 transitions, 11562 flow [2022-07-13 21:52:03,121 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=9253, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=11562, PETRI_PLACES=473, PETRI_TRANSITIONS=759} [2022-07-13 21:52:03,121 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 292 predicate places. [2022-07-13 21:52:03,122 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 759 transitions, 11562 flow [2022-07-13 21:52:03,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:03,122 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:52:03,122 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:52:03,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-13 21:52:03,122 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:52:03,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:52:03,123 INFO L85 PathProgramCache]: Analyzing trace with hash -409980462, now seen corresponding path program 16 times [2022-07-13 21:52:03,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:52:03,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693838573] [2022-07-13 21:52:03,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:52:03,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:52:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:52:03,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:52:03,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:52:03,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693838573] [2022-07-13 21:52:03,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693838573] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:52:03,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:52:03,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-13 21:52:03,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134527485] [2022-07-13 21:52:03,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:52:03,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-13 21:52:03,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:52:03,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-13 21:52:03,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-07-13 21:52:03,557 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 195 [2022-07-13 21:52:03,558 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 759 transitions, 11562 flow. Second operand has 19 states, 19 states have (on average 134.31578947368422) internal successors, (2552), 19 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:03,558 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:52:03,558 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 195 [2022-07-13 21:52:03,558 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:52:11,264 INFO L129 PetriNetUnfolder]: 5329/20396 cut-off events. [2022-07-13 21:52:11,264 INFO L130 PetriNetUnfolder]: For 186928/187517 co-relation queries the response was YES. [2022-07-13 21:52:11,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90577 conditions, 20396 events. 5329/20396 cut-off events. For 186928/187517 co-relation queries the response was YES. Maximal size of possible extension queue 1008. Compared 266419 event pairs, 2279 based on Foata normal form. 167/20151 useless extension candidates. Maximal degree in co-relation 90439. Up to 4291 conditions per place. [2022-07-13 21:52:11,663 INFO L132 encePairwiseOnDemand]: 175/195 looper letters, 677 selfloop transitions, 139 changer transitions 0/1116 dead transitions. [2022-07-13 21:52:11,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 1116 transitions, 18127 flow [2022-07-13 21:52:11,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-13 21:52:11,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-13 21:52:11,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3090 transitions. [2022-07-13 21:52:11,666 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7202797202797203 [2022-07-13 21:52:11,666 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3090 transitions. [2022-07-13 21:52:11,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3090 transitions. [2022-07-13 21:52:11,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:52:11,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3090 transitions. [2022-07-13 21:52:11,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 140.45454545454547) internal successors, (3090), 22 states have internal predecessors, (3090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:11,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 195.0) internal successors, (4485), 23 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:11,672 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 195.0) internal successors, (4485), 23 states have internal predecessors, (4485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:11,672 INFO L186 Difference]: Start difference. First operand has 473 places, 759 transitions, 11562 flow. Second operand 22 states and 3090 transitions. [2022-07-13 21:52:11,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 1116 transitions, 18127 flow [2022-07-13 21:52:13,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 1116 transitions, 17887 flow, removed 65 selfloop flow, removed 10 redundant places. [2022-07-13 21:52:13,997 INFO L242 Difference]: Finished difference. Result has 491 places, 813 transitions, 12673 flow [2022-07-13 21:52:13,998 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=11371, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=759, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=12673, PETRI_PLACES=491, PETRI_TRANSITIONS=813} [2022-07-13 21:52:13,999 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 310 predicate places. [2022-07-13 21:52:13,999 INFO L495 AbstractCegarLoop]: Abstraction has has 491 places, 813 transitions, 12673 flow [2022-07-13 21:52:13,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 134.31578947368422) internal successors, (2552), 19 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:13,999 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:52:13,999 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:52:14,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-13 21:52:14,000 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:52:14,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:52:14,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1733583368, now seen corresponding path program 17 times [2022-07-13 21:52:14,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:52:14,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961471996] [2022-07-13 21:52:14,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:52:14,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:52:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:52:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:52:14,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:52:14,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961471996] [2022-07-13 21:52:14,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961471996] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:52:14,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:52:14,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-13 21:52:14,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867442260] [2022-07-13 21:52:14,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:52:14,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-13 21:52:14,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:52:14,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-13 21:52:14,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-07-13 21:52:14,371 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-07-13 21:52:14,372 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 813 transitions, 12673 flow. Second operand has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:14,372 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:52:14,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-07-13 21:52:14,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:52:21,490 INFO L129 PetriNetUnfolder]: 4970/19581 cut-off events. [2022-07-13 21:52:21,491 INFO L130 PetriNetUnfolder]: For 174906/175563 co-relation queries the response was YES. [2022-07-13 21:52:21,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88848 conditions, 19581 events. 4970/19581 cut-off events. For 174906/175563 co-relation queries the response was YES. Maximal size of possible extension queue 986. Compared 257272 event pairs, 1957 based on Foata normal form. 144/19171 useless extension candidates. Maximal degree in co-relation 88703. Up to 3975 conditions per place. [2022-07-13 21:52:21,871 INFO L132 encePairwiseOnDemand]: 177/195 looper letters, 578 selfloop transitions, 94 changer transitions 0/1060 dead transitions. [2022-07-13 21:52:21,871 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 1060 transitions, 17023 flow [2022-07-13 21:52:21,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-13 21:52:21,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-07-13 21:52:21,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2535 transitions. [2022-07-13 21:52:21,874 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7647058823529411 [2022-07-13 21:52:21,874 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2535 transitions. [2022-07-13 21:52:21,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2535 transitions. [2022-07-13 21:52:21,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:52:21,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2535 transitions. [2022-07-13 21:52:21,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 149.11764705882354) internal successors, (2535), 17 states have internal predecessors, (2535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:21,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:21,879 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 195.0) internal successors, (3510), 18 states have internal predecessors, (3510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:21,879 INFO L186 Difference]: Start difference. First operand has 491 places, 813 transitions, 12673 flow. Second operand 17 states and 2535 transitions. [2022-07-13 21:52:21,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 1060 transitions, 17023 flow [2022-07-13 21:52:24,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 1060 transitions, 16813 flow, removed 69 selfloop flow, removed 9 redundant places. [2022-07-13 21:52:24,220 INFO L242 Difference]: Finished difference. Result has 503 places, 834 transitions, 13086 flow [2022-07-13 21:52:24,221 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=12537, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=813, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=722, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=13086, PETRI_PLACES=503, PETRI_TRANSITIONS=834} [2022-07-13 21:52:24,221 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 322 predicate places. [2022-07-13 21:52:24,221 INFO L495 AbstractCegarLoop]: Abstraction has has 503 places, 834 transitions, 13086 flow [2022-07-13 21:52:24,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:24,221 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:52:24,222 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:52:24,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-13 21:52:24,222 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:52:24,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:52:24,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1801798540, now seen corresponding path program 18 times [2022-07-13 21:52:24,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:52:24,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441020876] [2022-07-13 21:52:24,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:52:24,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:52:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:52:24,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:52:24,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:52:24,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441020876] [2022-07-13 21:52:24,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441020876] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:52:24,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:52:24,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-07-13 21:52:24,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275211450] [2022-07-13 21:52:24,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:52:24,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-13 21:52:24,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:52:24,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-13 21:52:24,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-07-13 21:52:24,723 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-07-13 21:52:24,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 503 places, 834 transitions, 13086 flow. Second operand has 22 states, 22 states have (on average 101.72727272727273) internal successors, (2238), 22 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:24,725 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:52:24,725 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-07-13 21:52:24,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-13 21:52:37,482 INFO L129 PetriNetUnfolder]: 13606/36486 cut-off events. [2022-07-13 21:52:37,482 INFO L130 PetriNetUnfolder]: For 295199/295891 co-relation queries the response was YES. [2022-07-13 21:52:38,255 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162549 conditions, 36486 events. 13606/36486 cut-off events. For 295199/295891 co-relation queries the response was YES. Maximal size of possible extension queue 1566. Compared 446621 event pairs, 7098 based on Foata normal form. 219/35876 useless extension candidates. Maximal degree in co-relation 162399. Up to 8246 conditions per place. [2022-07-13 21:52:38,377 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 969 selfloop transitions, 95 changer transitions 0/1266 dead transitions. [2022-07-13 21:52:38,377 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 1266 transitions, 21489 flow [2022-07-13 21:52:38,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-13 21:52:38,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-07-13 21:52:38,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2496 transitions. [2022-07-13 21:52:38,380 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5565217391304348 [2022-07-13 21:52:38,380 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2496 transitions. [2022-07-13 21:52:38,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2496 transitions. [2022-07-13 21:52:38,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-13 21:52:38,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2496 transitions. [2022-07-13 21:52:38,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 108.52173913043478) internal successors, (2496), 23 states have internal predecessors, (2496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:38,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 195.0) internal successors, (4680), 24 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:38,386 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 195.0) internal successors, (4680), 24 states have internal predecessors, (4680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:38,386 INFO L186 Difference]: Start difference. First operand has 503 places, 834 transitions, 13086 flow. Second operand 23 states and 2496 transitions. [2022-07-13 21:52:38,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 1266 transitions, 21489 flow [2022-07-13 21:52:43,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 1266 transitions, 21367 flow, removed 13 selfloop flow, removed 9 redundant places. [2022-07-13 21:52:43,645 INFO L242 Difference]: Finished difference. Result has 523 places, 856 transitions, 13593 flow [2022-07-13 21:52:43,646 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=12966, PETRI_DIFFERENCE_MINUEND_PLACES=494, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=834, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=743, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=13593, PETRI_PLACES=523, PETRI_TRANSITIONS=856} [2022-07-13 21:52:43,646 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 342 predicate places. [2022-07-13 21:52:43,646 INFO L495 AbstractCegarLoop]: Abstraction has has 523 places, 856 transitions, 13593 flow [2022-07-13 21:52:43,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 101.72727272727273) internal successors, (2238), 22 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:43,647 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-13 21:52:43,647 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 21:52:43,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-13 21:52:43,647 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-13 21:52:43,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 21:52:43,647 INFO L85 PathProgramCache]: Analyzing trace with hash -459650214, now seen corresponding path program 19 times [2022-07-13 21:52:43,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 21:52:43,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893360880] [2022-07-13 21:52:43,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 21:52:43,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 21:52:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 21:52:44,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 21:52:44,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 21:52:44,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893360880] [2022-07-13 21:52:44,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893360880] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 21:52:44,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 21:52:44,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-13 21:52:44,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562049717] [2022-07-13 21:52:44,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 21:52:44,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-13 21:52:44,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 21:52:44,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-13 21:52:44,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-07-13 21:52:44,035 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-07-13 21:52:44,036 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 523 places, 856 transitions, 13593 flow. Second operand has 18 states, 18 states have (on average 142.05555555555554) internal successors, (2557), 18 states have internal predecessors, (2557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 21:52:44,037 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-13 21:52:44,037 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-07-13 21:52:44,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand