./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 eb692b52 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-?-eb692b5 [2022-07-19 21:12:45,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 21:12:45,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 21:12:45,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 21:12:45,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 21:12:45,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 21:12:45,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 21:12:45,614 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 21:12:45,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 21:12:45,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 21:12:45,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 21:12:45,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 21:12:45,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 21:12:45,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 21:12:45,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 21:12:45,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 21:12:45,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 21:12:45,631 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 21:12:45,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 21:12:45,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 21:12:45,641 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 21:12:45,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 21:12:45,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 21:12:45,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 21:12:45,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 21:12:45,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 21:12:45,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 21:12:45,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 21:12:45,653 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 21:12:45,653 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 21:12:45,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 21:12:45,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 21:12:45,656 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 21:12:45,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 21:12:45,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 21:12:45,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 21:12:45,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 21:12:45,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 21:12:45,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 21:12:45,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 21:12:45,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 21:12:45,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 21:12:45,663 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 21:12:45,690 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 21:12:45,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 21:12:45,691 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 21:12:45,691 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 21:12:45,692 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 21:12:45,692 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 21:12:45,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 21:12:45,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 21:12:45,693 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 21:12:45,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 21:12:45,694 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 21:12:45,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 21:12:45,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 21:12:45,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 21:12:45,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 21:12:45,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 21:12:45,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 21:12:45,696 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 21:12:45,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 21:12:45,696 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 21:12:45,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 21:12:45,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 21:12:45,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 21:12:45,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 21:12:45,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:12:45,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 21:12:45,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 21:12:45,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 21:12:45,698 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 21:12:45,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 21:12:45,699 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 21:12:45,699 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 21:12:45,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 21:12:45,699 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db [2022-07-19 21:12:45,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 21:12:45,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 21:12:45,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 21:12:45,930 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 21:12:45,930 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 21:12:45,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-07-19 21:12:46,004 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28844b1da/fa1c3478357e409da4fa9f110121a61e/FLAG5fe2df45f [2022-07-19 21:12:46,541 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 21:12:46,542 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-07-19 21:12:46,569 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28844b1da/fa1c3478357e409da4fa9f110121a61e/FLAG5fe2df45f [2022-07-19 21:12:46,822 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28844b1da/fa1c3478357e409da4fa9f110121a61e [2022-07-19 21:12:46,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 21:12:46,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 21:12:46,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 21:12:46,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 21:12:46,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 21:12:46,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:12:46" (1/1) ... [2022-07-19 21:12:46,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55511155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:12:46, skipping insertion in model container [2022-07-19 21:12:46,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:12:46" (1/1) ... [2022-07-19 21:12:46,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 21:12:46,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 21:12:47,462 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] [2022-07-19 21:12:47,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:12:47,530 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 21:12:47,576 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] [2022-07-19 21:12:47,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:12:47,721 INFO L208 MainTranslator]: Completed translation [2022-07-19 21:12:47,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:12:47 WrapperNode [2022-07-19 21:12:47,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 21:12:47,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 21:12:47,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 21:12:47,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 21:12:47,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:12:47" (1/1) ... [2022-07-19 21:12:47,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:12:47" (1/1) ... [2022-07-19 21:12:47,811 INFO L137 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 133 [2022-07-19 21:12:47,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 21:12:47,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 21:12:47,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 21:12:47,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 21:12:47,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:12:47" (1/1) ... [2022-07-19 21:12:47,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:12:47" (1/1) ... [2022-07-19 21:12:47,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:12:47" (1/1) ... [2022-07-19 21:12:47,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:12:47" (1/1) ... [2022-07-19 21:12:47,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:12:47" (1/1) ... [2022-07-19 21:12:47,869 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:12:47" (1/1) ... [2022-07-19 21:12:47,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:12:47" (1/1) ... [2022-07-19 21:12:47,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 21:12:47,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 21:12:47,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 21:12:47,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 21:12:47,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:12:47" (1/1) ... [2022-07-19 21:12:47,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:12:47,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:12:47,926 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) [2022-07-19 21:12:47,939 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 [2022-07-19 21:12:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 21:12:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 21:12:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-19 21:12:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 21:12:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 21:12:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 21:12:47,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 21:12:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-07-19 21:12:47,970 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-07-19 21:12:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 21:12:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 21:12:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 21:12:47,971 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-19 21:12:48,249 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 21:12:48,251 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 21:12:48,478 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 21:12:48,486 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 21:12:48,486 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 21:12:48,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:12:48 BoogieIcfgContainer [2022-07-19 21:12:48,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 21:12:48,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 21:12:48,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 21:12:48,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 21:12:48,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:12:46" (1/3) ... [2022-07-19 21:12:48,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2950a008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:12:48, skipping insertion in model container [2022-07-19 21:12:48,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:12:47" (2/3) ... [2022-07-19 21:12:48,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2950a008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:12:48, skipping insertion in model container [2022-07-19 21:12:48,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:12:48" (3/3) ... [2022-07-19 21:12:48,496 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2022-07-19 21:12:48,501 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-19 21:12:48,509 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 21:12:48,509 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-19 21:12:48,509 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-19 21:12:48,557 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-19 21:12:48,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 193 places, 195 transitions, 406 flow [2022-07-19 21:12:48,689 INFO L129 PetriNetUnfolder]: 10/240 cut-off events. [2022-07-19 21:12:48,689 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-19 21:12:48,694 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. [2022-07-19 21:12:48,694 INFO L82 GeneralOperation]: Start removeDead. Operand has 193 places, 195 transitions, 406 flow [2022-07-19 21:12:48,699 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 181 transitions, 374 flow [2022-07-19 21:12:48,708 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 21:12:48,714 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@271abae2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@8b71a18 [2022-07-19 21:12:48,715 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-07-19 21:12:48,723 INFO L129 PetriNetUnfolder]: 0/45 cut-off events. [2022-07-19 21:12:48,723 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-19 21:12:48,724 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:12:48,724 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] [2022-07-19 21:12:48,725 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)] === [2022-07-19 21:12:48,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:12:48,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1888391755, now seen corresponding path program 1 times [2022-07-19 21:12:48,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:12:48,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830318111] [2022-07-19 21:12:48,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:12:48,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:12:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:12:49,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:12:49,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:12:49,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830318111] [2022-07-19 21:12:49,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830318111] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:12:49,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:12:49,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 21:12:49,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731255515] [2022-07-19 21:12:49,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:12:49,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 21:12:49,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:12:49,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 21:12:49,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 21:12:49,172 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 195 [2022-07-19 21:12:49,180 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) [2022-07-19 21:12:49,181 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:12:49,181 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 195 [2022-07-19 21:12:49,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:12:49,569 INFO L129 PetriNetUnfolder]: 361/1046 cut-off events. [2022-07-19 21:12:49,570 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-07-19 21:12:49,576 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. [2022-07-19 21:12:49,596 INFO L132 encePairwiseOnDemand]: 173/195 looper letters, 53 selfloop transitions, 17 changer transitions 1/177 dead transitions. [2022-07-19 21:12:49,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 177 transitions, 508 flow [2022-07-19 21:12:49,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 21:12:49,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-19 21:12:49,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1138 transitions. [2022-07-19 21:12:49,619 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6484330484330484 [2022-07-19 21:12:49,620 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1138 transitions. [2022-07-19 21:12:49,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1138 transitions. [2022-07-19 21:12:49,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:12:49,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1138 transitions. [2022-07-19 21:12:49,634 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) [2022-07-19 21:12:49,644 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) [2022-07-19 21:12:49,645 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) [2022-07-19 21:12:49,647 INFO L186 Difference]: Start difference. First operand has 181 places, 181 transitions, 374 flow. Second operand 9 states and 1138 transitions. [2022-07-19 21:12:49,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 177 transitions, 508 flow [2022-07-19 21:12:49,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 177 transitions, 500 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-19 21:12:49,659 INFO L242 Difference]: Finished difference. Result has 179 places, 170 transitions, 385 flow [2022-07-19 21:12:49,662 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} [2022-07-19 21:12:49,667 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, -2 predicate places. [2022-07-19 21:12:49,667 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 170 transitions, 385 flow [2022-07-19 21:12:49,668 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) [2022-07-19 21:12:49,668 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:12:49,669 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] [2022-07-19 21:12:49,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 21:12:49,670 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)] === [2022-07-19 21:12:49,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:12:49,671 INFO L85 PathProgramCache]: Analyzing trace with hash -57843741, now seen corresponding path program 1 times [2022-07-19 21:12:49,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:12:49,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570966354] [2022-07-19 21:12:49,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:12:49,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:12:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:12:49,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:12:49,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:12:49,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570966354] [2022-07-19 21:12:49,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570966354] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:12:49,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:12:49,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 21:12:49,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121381887] [2022-07-19 21:12:49,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:12:49,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 21:12:49,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:12:49,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 21:12:49,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 21:12:49,828 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 195 [2022-07-19 21:12:49,830 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) [2022-07-19 21:12:49,831 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:12:49,831 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 195 [2022-07-19 21:12:49,831 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:12:50,127 INFO L129 PetriNetUnfolder]: 361/1016 cut-off events. [2022-07-19 21:12:50,132 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-07-19 21:12:50,135 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. [2022-07-19 21:12:50,141 INFO L132 encePairwiseOnDemand]: 176/195 looper letters, 61 selfloop transitions, 18 changer transitions 1/185 dead transitions. [2022-07-19 21:12:50,141 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 185 transitions, 577 flow [2022-07-19 21:12:50,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 21:12:50,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-19 21:12:50,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1261 transitions. [2022-07-19 21:12:50,145 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6466666666666666 [2022-07-19 21:12:50,145 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1261 transitions. [2022-07-19 21:12:50,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1261 transitions. [2022-07-19 21:12:50,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:12:50,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1261 transitions. [2022-07-19 21:12:50,149 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) [2022-07-19 21:12:50,153 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) [2022-07-19 21:12:50,154 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) [2022-07-19 21:12:50,154 INFO L186 Difference]: Start difference. First operand has 179 places, 170 transitions, 385 flow. Second operand 10 states and 1261 transitions. [2022-07-19 21:12:50,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 185 transitions, 577 flow [2022-07-19 21:12:50,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 185 transitions, 548 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-07-19 21:12:50,166 INFO L242 Difference]: Finished difference. Result has 180 places, 169 transitions, 396 flow [2022-07-19 21:12:50,167 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} [2022-07-19 21:12:50,168 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, -1 predicate places. [2022-07-19 21:12:50,168 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 169 transitions, 396 flow [2022-07-19 21:12:50,169 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) [2022-07-19 21:12:50,169 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:12:50,169 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] [2022-07-19 21:12:50,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 21:12:50,170 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)] === [2022-07-19 21:12:50,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:12:50,172 INFO L85 PathProgramCache]: Analyzing trace with hash 5829728, now seen corresponding path program 1 times [2022-07-19 21:12:50,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:12:50,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757196561] [2022-07-19 21:12:50,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:12:50,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:12:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:12:50,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:12:50,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:12:50,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757196561] [2022-07-19 21:12:50,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757196561] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:12:50,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:12:50,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 21:12:50,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405724627] [2022-07-19 21:12:50,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:12:50,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 21:12:50,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:12:50,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 21:12:50,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 21:12:50,358 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 195 [2022-07-19 21:12:50,359 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) [2022-07-19 21:12:50,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:12:50,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 195 [2022-07-19 21:12:50,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:12:50,833 INFO L129 PetriNetUnfolder]: 832/2098 cut-off events. [2022-07-19 21:12:50,833 INFO L130 PetriNetUnfolder]: For 131/131 co-relation queries the response was YES. [2022-07-19 21:12:50,839 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. [2022-07-19 21:12:50,851 INFO L132 encePairwiseOnDemand]: 174/195 looper letters, 100 selfloop transitions, 49 changer transitions 0/254 dead transitions. [2022-07-19 21:12:50,851 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 254 transitions, 880 flow [2022-07-19 21:12:50,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 21:12:50,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-19 21:12:50,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1657 transitions. [2022-07-19 21:12:50,856 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6536489151873768 [2022-07-19 21:12:50,856 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1657 transitions. [2022-07-19 21:12:50,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1657 transitions. [2022-07-19 21:12:50,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:12:50,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1657 transitions. [2022-07-19 21:12:50,862 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) [2022-07-19 21:12:50,868 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) [2022-07-19 21:12:50,869 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) [2022-07-19 21:12:50,869 INFO L186 Difference]: Start difference. First operand has 180 places, 169 transitions, 396 flow. Second operand 13 states and 1657 transitions. [2022-07-19 21:12:50,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 254 transitions, 880 flow [2022-07-19 21:12:50,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 254 transitions, 834 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-07-19 21:12:50,881 INFO L242 Difference]: Finished difference. Result has 192 places, 206 transitions, 666 flow [2022-07-19 21:12:50,882 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} [2022-07-19 21:12:50,884 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 11 predicate places. [2022-07-19 21:12:50,885 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 206 transitions, 666 flow [2022-07-19 21:12:50,885 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) [2022-07-19 21:12:50,885 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:12:50,886 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] [2022-07-19 21:12:50,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 21:12:50,886 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)] === [2022-07-19 21:12:50,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:12:50,888 INFO L85 PathProgramCache]: Analyzing trace with hash -2139572029, now seen corresponding path program 1 times [2022-07-19 21:12:50,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:12:50,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019444380] [2022-07-19 21:12:50,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:12:50,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:12:50,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:12:51,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:12:51,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:12:51,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019444380] [2022-07-19 21:12:51,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019444380] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:12:51,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:12:51,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 21:12:51,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881109906] [2022-07-19 21:12:51,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:12:51,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 21:12:51,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:12:51,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 21:12:51,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 21:12:51,044 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 195 [2022-07-19 21:12:51,045 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) [2022-07-19 21:12:51,046 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:12:51,046 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 195 [2022-07-19 21:12:51,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:12:51,599 INFO L129 PetriNetUnfolder]: 1084/2667 cut-off events. [2022-07-19 21:12:51,599 INFO L130 PetriNetUnfolder]: For 10874/10936 co-relation queries the response was YES. [2022-07-19 21:12:51,609 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. [2022-07-19 21:12:51,623 INFO L132 encePairwiseOnDemand]: 176/195 looper letters, 74 selfloop transitions, 48 changer transitions 69/295 dead transitions. [2022-07-19 21:12:51,624 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 295 transitions, 1750 flow [2022-07-19 21:12:51,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 21:12:51,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-07-19 21:12:51,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1406 transitions. [2022-07-19 21:12:51,628 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6554778554778555 [2022-07-19 21:12:51,628 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1406 transitions. [2022-07-19 21:12:51,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1406 transitions. [2022-07-19 21:12:51,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:12:51,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1406 transitions. [2022-07-19 21:12:51,632 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) [2022-07-19 21:12:51,635 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) [2022-07-19 21:12:51,635 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) [2022-07-19 21:12:51,636 INFO L186 Difference]: Start difference. First operand has 192 places, 206 transitions, 666 flow. Second operand 11 states and 1406 transitions. [2022-07-19 21:12:51,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 295 transitions, 1750 flow [2022-07-19 21:12:51,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 295 transitions, 1750 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-07-19 21:12:51,653 INFO L242 Difference]: Finished difference. Result has 210 places, 212 transitions, 979 flow [2022-07-19 21:12:51,654 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} [2022-07-19 21:12:51,654 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 29 predicate places. [2022-07-19 21:12:51,655 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 212 transitions, 979 flow [2022-07-19 21:12:51,655 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) [2022-07-19 21:12:51,655 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:12:51,655 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] [2022-07-19 21:12:51,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 21:12:51,656 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)] === [2022-07-19 21:12:51,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:12:51,657 INFO L85 PathProgramCache]: Analyzing trace with hash -902131826, now seen corresponding path program 1 times [2022-07-19 21:12:51,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:12:51,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221449748] [2022-07-19 21:12:51,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:12:51,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:12:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:12:51,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:12:51,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:12:51,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221449748] [2022-07-19 21:12:51,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221449748] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:12:51,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:12:51,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 21:12:51,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980306007] [2022-07-19 21:12:51,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:12:51,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 21:12:51,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:12:51,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 21:12:51,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 21:12:51,749 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 195 [2022-07-19 21:12:51,750 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) [2022-07-19 21:12:51,750 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:12:51,750 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 195 [2022-07-19 21:12:51,750 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:12:51,804 INFO L129 PetriNetUnfolder]: 4/168 cut-off events. [2022-07-19 21:12:51,804 INFO L130 PetriNetUnfolder]: For 459/531 co-relation queries the response was YES. [2022-07-19 21:12:51,805 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. [2022-07-19 21:12:51,806 INFO L132 encePairwiseOnDemand]: 190/195 looper letters, 9 selfloop transitions, 4 changer transitions 0/140 dead transitions. [2022-07-19 21:12:51,806 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 140 transitions, 438 flow [2022-07-19 21:12:51,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 21:12:51,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-07-19 21:12:51,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1022 transitions. [2022-07-19 21:12:51,809 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8735042735042735 [2022-07-19 21:12:51,809 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1022 transitions. [2022-07-19 21:12:51,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1022 transitions. [2022-07-19 21:12:51,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:12:51,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1022 transitions. [2022-07-19 21:12:51,812 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) [2022-07-19 21:12:51,814 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) [2022-07-19 21:12:51,815 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) [2022-07-19 21:12:51,815 INFO L186 Difference]: Start difference. First operand has 210 places, 212 transitions, 979 flow. Second operand 6 states and 1022 transitions. [2022-07-19 21:12:51,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 140 transitions, 438 flow [2022-07-19 21:12:51,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 140 transitions, 318 flow, removed 40 selfloop flow, removed 19 redundant places. [2022-07-19 21:12:51,819 INFO L242 Difference]: Finished difference. Result has 153 places, 140 transitions, 300 flow [2022-07-19 21:12:51,820 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} [2022-07-19 21:12:51,821 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, -28 predicate places. [2022-07-19 21:12:51,821 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 140 transitions, 300 flow [2022-07-19 21:12:51,821 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) [2022-07-19 21:12:51,822 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:12:51,822 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] [2022-07-19 21:12:51,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 21:12:51,822 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)] === [2022-07-19 21:12:51,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:12:51,823 INFO L85 PathProgramCache]: Analyzing trace with hash -971686872, now seen corresponding path program 1 times [2022-07-19 21:12:51,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:12:51,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228047794] [2022-07-19 21:12:51,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:12:51,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:12:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:12:52,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:12:52,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:12:52,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228047794] [2022-07-19 21:12:52,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228047794] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:12:52,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:12:52,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-07-19 21:12:52,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384973147] [2022-07-19 21:12:52,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:12:52,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-19 21:12:52,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:12:52,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-19 21:12:52,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-07-19 21:12:52,636 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-07-19 21:12:52,639 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) [2022-07-19 21:12:52,639 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:12:52,640 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-07-19 21:12:52,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:12:54,769 INFO L129 PetriNetUnfolder]: 698/1674 cut-off events. [2022-07-19 21:12:54,770 INFO L130 PetriNetUnfolder]: For 148/148 co-relation queries the response was YES. [2022-07-19 21:12:54,774 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. [2022-07-19 21:12:54,781 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 154 selfloop transitions, 29 changer transitions 0/257 dead transitions. [2022-07-19 21:12:54,781 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 257 transitions, 949 flow [2022-07-19 21:12:54,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-19 21:12:54,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-07-19 21:12:54,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2461 transitions. [2022-07-19 21:12:54,787 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5487179487179488 [2022-07-19 21:12:54,787 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2461 transitions. [2022-07-19 21:12:54,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2461 transitions. [2022-07-19 21:12:54,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:12:54,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2461 transitions. [2022-07-19 21:12:54,794 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) [2022-07-19 21:12:54,800 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) [2022-07-19 21:12:54,801 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) [2022-07-19 21:12:54,801 INFO L186 Difference]: Start difference. First operand has 153 places, 140 transitions, 300 flow. Second operand 23 states and 2461 transitions. [2022-07-19 21:12:54,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 257 transitions, 949 flow [2022-07-19 21:12:54,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 257 transitions, 942 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-19 21:12:54,806 INFO L242 Difference]: Finished difference. Result has 176 places, 150 transitions, 400 flow [2022-07-19 21:12:54,807 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} [2022-07-19 21:12:54,808 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, -5 predicate places. [2022-07-19 21:12:54,808 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 150 transitions, 400 flow [2022-07-19 21:12:54,809 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) [2022-07-19 21:12:54,809 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:12:54,809 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] [2022-07-19 21:12:54,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 21:12:54,810 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)] === [2022-07-19 21:12:54,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:12:54,810 INFO L85 PathProgramCache]: Analyzing trace with hash 934474332, now seen corresponding path program 2 times [2022-07-19 21:12:54,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:12:54,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843082826] [2022-07-19 21:12:54,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:12:54,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:12:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:12:55,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:12:55,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:12:55,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843082826] [2022-07-19 21:12:55,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843082826] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:12:55,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:12:55,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-19 21:12:55,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242104319] [2022-07-19 21:12:55,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:12:55,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-19 21:12:55,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:12:55,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-19 21:12:55,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-07-19 21:12:55,374 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-19 21:12:55,376 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) [2022-07-19 21:12:55,376 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:12:55,376 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-19 21:12:55,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:12:56,245 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]) [2022-07-19 21:12:56,248 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-07-19 21:12:56,248 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-19 21:12:56,248 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-19 21:12:56,248 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-19 21:12:56,265 INFO L382 tUnfolder$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]) [2022-07-19 21:12:56,266 INFO L384 tUnfolder$Statistics]: this new event has 103 ancestors and is cut-off event [2022-07-19 21:12:56,266 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-19 21:12:56,267 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-19 21:12:56,267 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-19 21:12:56,690 INFO L129 PetriNetUnfolder]: 749/1961 cut-off events. [2022-07-19 21:12:56,690 INFO L130 PetriNetUnfolder]: For 575/575 co-relation queries the response was YES. [2022-07-19 21:12:56,696 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. [2022-07-19 21:12:56,705 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 155 selfloop transitions, 32 changer transitions 0/264 dead transitions. [2022-07-19 21:12:56,705 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 264 transitions, 1104 flow [2022-07-19 21:12:56,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-19 21:12:56,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-19 21:12:56,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2284 transitions. [2022-07-19 21:12:56,711 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5324009324009324 [2022-07-19 21:12:56,711 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2284 transitions. [2022-07-19 21:12:56,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2284 transitions. [2022-07-19 21:12:56,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:12:56,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2284 transitions. [2022-07-19 21:12:56,717 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) [2022-07-19 21:12:56,723 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) [2022-07-19 21:12:56,724 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) [2022-07-19 21:12:56,725 INFO L186 Difference]: Start difference. First operand has 176 places, 150 transitions, 400 flow. Second operand 22 states and 2284 transitions. [2022-07-19 21:12:56,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 264 transitions, 1104 flow [2022-07-19 21:12:56,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 264 transitions, 1061 flow, removed 0 selfloop flow, removed 16 redundant places. [2022-07-19 21:12:56,731 INFO L242 Difference]: Finished difference. Result has 192 places, 171 transitions, 542 flow [2022-07-19 21:12:56,732 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} [2022-07-19 21:12:56,732 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 11 predicate places. [2022-07-19 21:12:56,733 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 171 transitions, 542 flow [2022-07-19 21:12:56,733 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) [2022-07-19 21:12:56,734 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:12:56,734 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] [2022-07-19 21:12:56,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 21:12:56,734 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)] === [2022-07-19 21:12:56,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:12:56,735 INFO L85 PathProgramCache]: Analyzing trace with hash -424530496, now seen corresponding path program 3 times [2022-07-19 21:12:56,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:12:56,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376962598] [2022-07-19 21:12:56,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:12:56,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:12:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:12:57,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:12:57,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:12:57,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376962598] [2022-07-19 21:12:57,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376962598] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:12:57,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:12:57,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-19 21:12:57,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723313787] [2022-07-19 21:12:57,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:12:57,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-19 21:12:57,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:12:57,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-19 21:12:57,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-07-19 21:12:57,388 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 195 [2022-07-19 21:12:57,390 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) [2022-07-19 21:12:57,390 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:12:57,390 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 195 [2022-07-19 21:12:57,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:12:59,411 INFO L129 PetriNetUnfolder]: 1035/2621 cut-off events. [2022-07-19 21:12:59,411 INFO L130 PetriNetUnfolder]: For 2006/2052 co-relation queries the response was YES. [2022-07-19 21:12:59,423 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. [2022-07-19 21:12:59,436 INFO L132 encePairwiseOnDemand]: 175/195 looper letters, 163 selfloop transitions, 33 changer transitions 0/304 dead transitions. [2022-07-19 21:12:59,437 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 304 transitions, 1545 flow [2022-07-19 21:12:59,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-19 21:12:59,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-07-19 21:12:59,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2658 transitions. [2022-07-19 21:12:59,445 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7174089068825911 [2022-07-19 21:12:59,445 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2658 transitions. [2022-07-19 21:12:59,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2658 transitions. [2022-07-19 21:12:59,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:12:59,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2658 transitions. [2022-07-19 21:12:59,453 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) [2022-07-19 21:12:59,472 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) [2022-07-19 21:12:59,474 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) [2022-07-19 21:12:59,475 INFO L186 Difference]: Start difference. First operand has 192 places, 171 transitions, 542 flow. Second operand 19 states and 2658 transitions. [2022-07-19 21:12:59,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 304 transitions, 1545 flow [2022-07-19 21:12:59,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 304 transitions, 1513 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-07-19 21:12:59,487 INFO L242 Difference]: Finished difference. Result has 210 places, 186 transitions, 707 flow [2022-07-19 21:12:59,487 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} [2022-07-19 21:12:59,490 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 29 predicate places. [2022-07-19 21:12:59,490 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 186 transitions, 707 flow [2022-07-19 21:12:59,491 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) [2022-07-19 21:12:59,491 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:12:59,491 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] [2022-07-19 21:12:59,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 21:12:59,492 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)] === [2022-07-19 21:12:59,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:12:59,492 INFO L85 PathProgramCache]: Analyzing trace with hash -97507748, now seen corresponding path program 4 times [2022-07-19 21:12:59,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:12:59,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733576876] [2022-07-19 21:12:59,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:12:59,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:12:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:13:00,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:13:00,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:13:00,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733576876] [2022-07-19 21:13:00,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733576876] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:13:00,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:13:00,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-19 21:13:00,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010205040] [2022-07-19 21:13:00,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:13:00,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-19 21:13:00,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:13:00,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-19 21:13:00,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-07-19 21:13:00,091 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-19 21:13:00,094 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) [2022-07-19 21:13:00,094 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:13:00,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-19 21:13:00,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:13:01,504 INFO L129 PetriNetUnfolder]: 1204/3156 cut-off events. [2022-07-19 21:13:01,505 INFO L130 PetriNetUnfolder]: For 2645/2675 co-relation queries the response was YES. [2022-07-19 21:13:01,515 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. [2022-07-19 21:13:01,528 INFO L132 encePairwiseOnDemand]: 167/195 looper letters, 143 selfloop transitions, 50 changer transitions 0/276 dead transitions. [2022-07-19 21:13:01,528 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 276 transitions, 1408 flow [2022-07-19 21:13:01,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-19 21:13:01,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-07-19 21:13:01,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2072 transitions. [2022-07-19 21:13:01,532 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5312820512820513 [2022-07-19 21:13:01,532 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2072 transitions. [2022-07-19 21:13:01,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2072 transitions. [2022-07-19 21:13:01,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:13:01,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2072 transitions. [2022-07-19 21:13:01,536 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) [2022-07-19 21:13:01,540 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) [2022-07-19 21:13:01,544 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) [2022-07-19 21:13:01,544 INFO L186 Difference]: Start difference. First operand has 210 places, 186 transitions, 707 flow. Second operand 20 states and 2072 transitions. [2022-07-19 21:13:01,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 276 transitions, 1408 flow [2022-07-19 21:13:01,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 276 transitions, 1372 flow, removed 5 selfloop flow, removed 10 redundant places. [2022-07-19 21:13:01,563 INFO L242 Difference]: Finished difference. Result has 227 places, 201 transitions, 915 flow [2022-07-19 21:13:01,564 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} [2022-07-19 21:13:01,564 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 46 predicate places. [2022-07-19 21:13:01,565 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 201 transitions, 915 flow [2022-07-19 21:13:01,565 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) [2022-07-19 21:13:01,565 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:13:01,566 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] [2022-07-19 21:13:01,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 21:13:01,566 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)] === [2022-07-19 21:13:01,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:13:01,566 INFO L85 PathProgramCache]: Analyzing trace with hash 184447290, now seen corresponding path program 5 times [2022-07-19 21:13:01,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:13:01,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282265183] [2022-07-19 21:13:01,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:13:01,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:13:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:13:02,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:13:02,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:13:02,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282265183] [2022-07-19 21:13:02,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282265183] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:13:02,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:13:02,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-19 21:13:02,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666148556] [2022-07-19 21:13:02,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:13:02,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-19 21:13:02,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:13:02,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-19 21:13:02,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-07-19 21:13:02,087 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-19 21:13:02,089 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) [2022-07-19 21:13:02,089 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:13:02,089 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-19 21:13:02,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:13:03,774 INFO L129 PetriNetUnfolder]: 1356/3599 cut-off events. [2022-07-19 21:13:03,775 INFO L130 PetriNetUnfolder]: For 6006/6052 co-relation queries the response was YES. [2022-07-19 21:13:03,791 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. [2022-07-19 21:13:03,805 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 188 selfloop transitions, 51 changer transitions 0/322 dead transitions. [2022-07-19 21:13:03,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 322 transitions, 2013 flow [2022-07-19 21:13:03,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-19 21:13:03,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-19 21:13:03,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2284 transitions. [2022-07-19 21:13:03,809 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5324009324009324 [2022-07-19 21:13:03,810 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2284 transitions. [2022-07-19 21:13:03,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2284 transitions. [2022-07-19 21:13:03,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:13:03,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2284 transitions. [2022-07-19 21:13:03,814 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) [2022-07-19 21:13:03,820 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) [2022-07-19 21:13:03,822 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) [2022-07-19 21:13:03,822 INFO L186 Difference]: Start difference. First operand has 227 places, 201 transitions, 915 flow. Second operand 22 states and 2284 transitions. [2022-07-19 21:13:03,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 322 transitions, 2013 flow [2022-07-19 21:13:03,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 322 transitions, 1952 flow, removed 6 selfloop flow, removed 9 redundant places. [2022-07-19 21:13:03,856 INFO L242 Difference]: Finished difference. Result has 249 places, 222 transitions, 1208 flow [2022-07-19 21:13:03,857 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} [2022-07-19 21:13:03,857 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 68 predicate places. [2022-07-19 21:13:03,857 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 222 transitions, 1208 flow [2022-07-19 21:13:03,858 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) [2022-07-19 21:13:03,858 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:13:03,858 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] [2022-07-19 21:13:03,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 21:13:03,859 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)] === [2022-07-19 21:13:03,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:13:03,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1362620956, now seen corresponding path program 6 times [2022-07-19 21:13:03,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:13:03,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623142898] [2022-07-19 21:13:03,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:13:03,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:13:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:13:04,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:13:04,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:13:04,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623142898] [2022-07-19 21:13:04,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623142898] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:13:04,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:13:04,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-19 21:13:04,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422297603] [2022-07-19 21:13:04,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:13:04,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-19 21:13:04,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:13:04,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-19 21:13:04,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-07-19 21:13:04,367 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-19 21:13:04,368 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) [2022-07-19 21:13:04,368 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:13:04,368 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-19 21:13:04,369 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:13:05,939 INFO L129 PetriNetUnfolder]: 1364/3699 cut-off events. [2022-07-19 21:13:05,940 INFO L130 PetriNetUnfolder]: For 8340/8364 co-relation queries the response was YES. [2022-07-19 21:13:05,958 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. [2022-07-19 21:13:05,971 INFO L132 encePairwiseOnDemand]: 170/195 looper letters, 181 selfloop transitions, 56 changer transitions 0/320 dead transitions. [2022-07-19 21:13:05,972 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 320 transitions, 2229 flow [2022-07-19 21:13:05,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-19 21:13:05,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-07-19 21:13:05,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2167 transitions. [2022-07-19 21:13:05,976 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5291819291819292 [2022-07-19 21:13:05,976 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2167 transitions. [2022-07-19 21:13:05,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2167 transitions. [2022-07-19 21:13:05,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:13:05,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2167 transitions. [2022-07-19 21:13:05,980 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) [2022-07-19 21:13:05,985 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) [2022-07-19 21:13:05,986 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) [2022-07-19 21:13:05,986 INFO L186 Difference]: Start difference. First operand has 249 places, 222 transitions, 1208 flow. Second operand 21 states and 2167 transitions. [2022-07-19 21:13:05,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 320 transitions, 2229 flow [2022-07-19 21:13:06,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 320 transitions, 2164 flow, removed 17 selfloop flow, removed 7 redundant places. [2022-07-19 21:13:06,029 INFO L242 Difference]: Finished difference. Result has 274 places, 241 transitions, 1528 flow [2022-07-19 21:13:06,029 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} [2022-07-19 21:13:06,030 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 93 predicate places. [2022-07-19 21:13:06,030 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 241 transitions, 1528 flow [2022-07-19 21:13:06,031 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) [2022-07-19 21:13:06,031 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:13:06,031 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] [2022-07-19 21:13:06,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 21:13:06,031 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)] === [2022-07-19 21:13:06,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:13:06,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1009366940, now seen corresponding path program 7 times [2022-07-19 21:13:06,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:13:06,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231726294] [2022-07-19 21:13:06,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:13:06,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:13:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:13:06,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:13:06,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:13:06,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231726294] [2022-07-19 21:13:06,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231726294] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:13:06,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:13:06,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-19 21:13:06,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719492652] [2022-07-19 21:13:06,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:13:06,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-19 21:13:06,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:13:06,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-19 21:13:06,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-07-19 21:13:06,532 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-19 21:13:06,534 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) [2022-07-19 21:13:06,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:13:06,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-19 21:13:06,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:13:08,217 INFO L129 PetriNetUnfolder]: 1482/4117 cut-off events. [2022-07-19 21:13:08,217 INFO L130 PetriNetUnfolder]: For 12017/12091 co-relation queries the response was YES. [2022-07-19 21:13:08,235 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. [2022-07-19 21:13:08,248 INFO L132 encePairwiseOnDemand]: 167/195 looper letters, 183 selfloop transitions, 91 changer transitions 0/357 dead transitions. [2022-07-19 21:13:08,249 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 357 transitions, 2717 flow [2022-07-19 21:13:08,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-19 21:13:08,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-19 21:13:08,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2292 transitions. [2022-07-19 21:13:08,253 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5342657342657343 [2022-07-19 21:13:08,253 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2292 transitions. [2022-07-19 21:13:08,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2292 transitions. [2022-07-19 21:13:08,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:13:08,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2292 transitions. [2022-07-19 21:13:08,302 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) [2022-07-19 21:13:08,306 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) [2022-07-19 21:13:08,306 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) [2022-07-19 21:13:08,306 INFO L186 Difference]: Start difference. First operand has 274 places, 241 transitions, 1528 flow. Second operand 22 states and 2292 transitions. [2022-07-19 21:13:08,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 357 transitions, 2717 flow [2022-07-19 21:13:08,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 357 transitions, 2643 flow, removed 29 selfloop flow, removed 6 redundant places. [2022-07-19 21:13:08,378 INFO L242 Difference]: Finished difference. Result has 295 places, 260 transitions, 1955 flow [2022-07-19 21:13:08,378 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} [2022-07-19 21:13:08,379 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 114 predicate places. [2022-07-19 21:13:08,379 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 260 transitions, 1955 flow [2022-07-19 21:13:08,380 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) [2022-07-19 21:13:08,380 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:13:08,380 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] [2022-07-19 21:13:08,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 21:13:08,381 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)] === [2022-07-19 21:13:08,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:13:08,381 INFO L85 PathProgramCache]: Analyzing trace with hash -218328318, now seen corresponding path program 8 times [2022-07-19 21:13:08,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:13:08,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567810496] [2022-07-19 21:13:08,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:13:08,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:13:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:13:09,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:13:09,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:13:09,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567810496] [2022-07-19 21:13:09,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567810496] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:13:09,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:13:09,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-07-19 21:13:09,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903406051] [2022-07-19 21:13:09,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:13:09,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-19 21:13:09,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:13:09,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-19 21:13:09,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2022-07-19 21:13:09,052 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 195 [2022-07-19 21:13:09,053 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) [2022-07-19 21:13:09,053 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:13:09,053 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 195 [2022-07-19 21:13:09,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:13:16,630 INFO L129 PetriNetUnfolder]: 3146/7105 cut-off events. [2022-07-19 21:13:16,630 INFO L130 PetriNetUnfolder]: For 27134/27214 co-relation queries the response was YES. [2022-07-19 21:13:16,664 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. [2022-07-19 21:13:16,693 INFO L132 encePairwiseOnDemand]: 165/195 looper letters, 407 selfloop transitions, 183 changer transitions 0/655 dead transitions. [2022-07-19 21:13:16,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 655 transitions, 5975 flow [2022-07-19 21:13:16,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-07-19 21:13:16,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2022-07-19 21:13:16,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 5284 transitions. [2022-07-19 21:13:16,701 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.4926806526806527 [2022-07-19 21:13:16,702 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 5284 transitions. [2022-07-19 21:13:16,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 5284 transitions. [2022-07-19 21:13:16,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:13:16,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 5284 transitions. [2022-07-19 21:13:16,713 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) [2022-07-19 21:13:16,725 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) [2022-07-19 21:13:16,727 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) [2022-07-19 21:13:16,728 INFO L186 Difference]: Start difference. First operand has 295 places, 260 transitions, 1955 flow. Second operand 55 states and 5284 transitions. [2022-07-19 21:13:16,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 655 transitions, 5975 flow [2022-07-19 21:13:16,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 655 transitions, 5718 flow, removed 47 selfloop flow, removed 9 redundant places. [2022-07-19 21:13:16,935 INFO L242 Difference]: Finished difference. Result has 361 places, 373 transitions, 3505 flow [2022-07-19 21:13:16,936 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} [2022-07-19 21:13:16,937 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 180 predicate places. [2022-07-19 21:13:16,937 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 373 transitions, 3505 flow [2022-07-19 21:13:16,938 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) [2022-07-19 21:13:16,938 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:13:16,938 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] [2022-07-19 21:13:16,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-19 21:13:16,939 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)] === [2022-07-19 21:13:16,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:13:16,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1561724186, now seen corresponding path program 9 times [2022-07-19 21:13:16,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:13:16,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120275793] [2022-07-19 21:13:16,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:13:16,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:13:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:13:17,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:13:17,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:13:17,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120275793] [2022-07-19 21:13:17,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120275793] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:13:17,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:13:17,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-07-19 21:13:17,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474768323] [2022-07-19 21:13:17,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:13:17,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-19 21:13:17,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:13:17,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-19 21:13:17,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-07-19 21:13:17,610 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-07-19 21:13:17,611 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) [2022-07-19 21:13:17,611 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:13:17,612 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-07-19 21:13:17,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:13:21,155 INFO L129 PetriNetUnfolder]: 4150/10178 cut-off events. [2022-07-19 21:13:21,155 INFO L130 PetriNetUnfolder]: For 46108/46318 co-relation queries the response was YES. [2022-07-19 21:13:21,224 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. [2022-07-19 21:13:21,260 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 430 selfloop transitions, 85 changer transitions 0/626 dead transitions. [2022-07-19 21:13:21,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 626 transitions, 7280 flow [2022-07-19 21:13:21,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-19 21:13:21,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-07-19 21:13:21,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2477 transitions. [2022-07-19 21:13:21,264 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5522853957636567 [2022-07-19 21:13:21,264 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2477 transitions. [2022-07-19 21:13:21,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2477 transitions. [2022-07-19 21:13:21,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:13:21,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2477 transitions. [2022-07-19 21:13:21,268 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) [2022-07-19 21:13:21,272 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) [2022-07-19 21:13:21,273 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) [2022-07-19 21:13:21,273 INFO L186 Difference]: Start difference. First operand has 361 places, 373 transitions, 3505 flow. Second operand 23 states and 2477 transitions. [2022-07-19 21:13:21,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 626 transitions, 7280 flow [2022-07-19 21:13:21,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 626 transitions, 6838 flow, removed 151 selfloop flow, removed 10 redundant places. [2022-07-19 21:13:21,718 INFO L242 Difference]: Finished difference. Result has 379 places, 395 transitions, 3630 flow [2022-07-19 21:13:21,719 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} [2022-07-19 21:13:21,720 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 198 predicate places. [2022-07-19 21:13:21,720 INFO L495 AbstractCegarLoop]: Abstraction has has 379 places, 395 transitions, 3630 flow [2022-07-19 21:13:21,720 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) [2022-07-19 21:13:21,720 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:13:21,721 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] [2022-07-19 21:13:21,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-19 21:13:21,721 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)] === [2022-07-19 21:13:21,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:13:21,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1125317570, now seen corresponding path program 10 times [2022-07-19 21:13:21,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:13:21,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547802760] [2022-07-19 21:13:21,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:13:21,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:13:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:13:22,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:13:22,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:13:22,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547802760] [2022-07-19 21:13:22,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547802760] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:13:22,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:13:22,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-07-19 21:13:22,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035416118] [2022-07-19 21:13:22,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:13:22,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-19 21:13:22,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:13:22,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-19 21:13:22,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-07-19 21:13:22,300 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-07-19 21:13:22,302 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) [2022-07-19 21:13:22,302 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:13:22,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-07-19 21:13:22,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:13:26,068 INFO L129 PetriNetUnfolder]: 4131/10351 cut-off events. [2022-07-19 21:13:26,068 INFO L130 PetriNetUnfolder]: For 50188/50345 co-relation queries the response was YES. [2022-07-19 21:13:26,150 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. [2022-07-19 21:13:26,189 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 415 selfloop transitions, 111 changer transitions 0/637 dead transitions. [2022-07-19 21:13:26,190 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 637 transitions, 7179 flow [2022-07-19 21:13:26,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-19 21:13:26,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-07-19 21:13:26,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2487 transitions. [2022-07-19 21:13:26,195 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5545150501672241 [2022-07-19 21:13:26,196 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2487 transitions. [2022-07-19 21:13:26,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2487 transitions. [2022-07-19 21:13:26,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:13:26,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2487 transitions. [2022-07-19 21:13:26,200 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) [2022-07-19 21:13:26,207 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) [2022-07-19 21:13:26,208 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) [2022-07-19 21:13:26,208 INFO L186 Difference]: Start difference. First operand has 379 places, 395 transitions, 3630 flow. Second operand 23 states and 2487 transitions. [2022-07-19 21:13:26,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 637 transitions, 7179 flow [2022-07-19 21:13:26,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 637 transitions, 7015 flow, removed 27 selfloop flow, removed 15 redundant places. [2022-07-19 21:13:26,653 INFO L242 Difference]: Finished difference. Result has 392 places, 413 transitions, 4072 flow [2022-07-19 21:13:26,653 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} [2022-07-19 21:13:26,654 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 211 predicate places. [2022-07-19 21:13:26,654 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 413 transitions, 4072 flow [2022-07-19 21:13:26,655 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) [2022-07-19 21:13:26,655 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:13:26,655 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] [2022-07-19 21:13:26,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 21:13:26,655 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)] === [2022-07-19 21:13:26,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:13:26,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1051639876, now seen corresponding path program 11 times [2022-07-19 21:13:26,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:13:26,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931648446] [2022-07-19 21:13:26,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:13:26,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:13:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:13:27,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:13:27,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:13:27,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931648446] [2022-07-19 21:13:27,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931648446] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:13:27,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:13:27,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-19 21:13:27,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842444261] [2022-07-19 21:13:27,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:13:27,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-19 21:13:27,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:13:27,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-19 21:13:27,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-07-19 21:13:27,172 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-07-19 21:13:27,174 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) [2022-07-19 21:13:27,174 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:13:27,174 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-07-19 21:13:27,174 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:13:29,746 INFO L129 PetriNetUnfolder]: 1778/5845 cut-off events. [2022-07-19 21:13:29,746 INFO L130 PetriNetUnfolder]: For 42813/43027 co-relation queries the response was YES. [2022-07-19 21:13:29,789 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. [2022-07-19 21:13:29,805 INFO L132 encePairwiseOnDemand]: 177/195 looper letters, 298 selfloop transitions, 82 changer transitions 0/568 dead transitions. [2022-07-19 21:13:29,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 568 transitions, 6684 flow [2022-07-19 21:13:29,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-19 21:13:29,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-07-19 21:13:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2526 transitions. [2022-07-19 21:13:29,808 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7619909502262443 [2022-07-19 21:13:29,809 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2526 transitions. [2022-07-19 21:13:29,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2526 transitions. [2022-07-19 21:13:29,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:13:29,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2526 transitions. [2022-07-19 21:13:29,812 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) [2022-07-19 21:13:29,815 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) [2022-07-19 21:13:29,816 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) [2022-07-19 21:13:29,816 INFO L186 Difference]: Start difference. First operand has 392 places, 413 transitions, 4072 flow. Second operand 17 states and 2526 transitions. [2022-07-19 21:13:29,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 568 transitions, 6684 flow [2022-07-19 21:13:30,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 568 transitions, 6400 flow, removed 80 selfloop flow, removed 16 redundant places. [2022-07-19 21:13:30,103 INFO L242 Difference]: Finished difference. Result has 397 places, 430 transitions, 4411 flow [2022-07-19 21:13:30,104 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} [2022-07-19 21:13:30,104 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 216 predicate places. [2022-07-19 21:13:30,104 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 430 transitions, 4411 flow [2022-07-19 21:13:30,105 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) [2022-07-19 21:13:30,105 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:13:30,105 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] [2022-07-19 21:13:30,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 21:13:30,106 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)] === [2022-07-19 21:13:30,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:13:30,106 INFO L85 PathProgramCache]: Analyzing trace with hash -382562200, now seen corresponding path program 12 times [2022-07-19 21:13:30,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:13:30,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615820559] [2022-07-19 21:13:30,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:13:30,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:13:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:13:30,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:13:30,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:13:30,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615820559] [2022-07-19 21:13:30,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615820559] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:13:30,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:13:30,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-19 21:13:30,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963125702] [2022-07-19 21:13:30,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:13:30,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-19 21:13:30,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:13:30,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-19 21:13:30,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-07-19 21:13:30,644 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-07-19 21:13:30,646 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) [2022-07-19 21:13:30,646 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:13:30,646 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-07-19 21:13:30,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:13:33,237 INFO L129 PetriNetUnfolder]: 1815/6130 cut-off events. [2022-07-19 21:13:33,237 INFO L130 PetriNetUnfolder]: For 46149/46378 co-relation queries the response was YES. [2022-07-19 21:13:33,283 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. [2022-07-19 21:13:33,298 INFO L132 encePairwiseOnDemand]: 178/195 looper letters, 274 selfloop transitions, 99 changer transitions 0/561 dead transitions. [2022-07-19 21:13:33,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 561 transitions, 6552 flow [2022-07-19 21:13:33,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-19 21:13:33,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-07-19 21:13:33,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2519 transitions. [2022-07-19 21:13:33,301 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7598793363499246 [2022-07-19 21:13:33,301 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2519 transitions. [2022-07-19 21:13:33,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2519 transitions. [2022-07-19 21:13:33,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:13:33,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2519 transitions. [2022-07-19 21:13:33,304 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) [2022-07-19 21:13:33,307 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) [2022-07-19 21:13:33,307 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) [2022-07-19 21:13:33,307 INFO L186 Difference]: Start difference. First operand has 397 places, 430 transitions, 4411 flow. Second operand 17 states and 2519 transitions. [2022-07-19 21:13:33,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 561 transitions, 6552 flow [2022-07-19 21:13:33,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 561 transitions, 6374 flow, removed 31 selfloop flow, removed 11 redundant places. [2022-07-19 21:13:33,720 INFO L242 Difference]: Finished difference. Result has 405 places, 438 transitions, 4645 flow [2022-07-19 21:13:33,721 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} [2022-07-19 21:13:33,721 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 224 predicate places. [2022-07-19 21:13:33,721 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 438 transitions, 4645 flow [2022-07-19 21:13:33,722 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) [2022-07-19 21:13:33,722 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:13:33,722 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] [2022-07-19 21:13:33,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-19 21:13:33,722 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)] === [2022-07-19 21:13:33,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:13:33,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1263906712, now seen corresponding path program 13 times [2022-07-19 21:13:33,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:13:33,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352035739] [2022-07-19 21:13:33,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:13:33,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:13:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:13:34,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:13:34,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:13:34,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352035739] [2022-07-19 21:13:34,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352035739] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:13:34,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:13:34,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-19 21:13:34,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289737988] [2022-07-19 21:13:34,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:13:34,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-19 21:13:34,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:13:34,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-19 21:13:34,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-07-19 21:13:34,199 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-07-19 21:13:34,200 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) [2022-07-19 21:13:34,200 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:13:34,200 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-07-19 21:13:34,200 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:13:36,528 INFO L129 PetriNetUnfolder]: 1575/5298 cut-off events. [2022-07-19 21:13:36,528 INFO L130 PetriNetUnfolder]: For 43572/43783 co-relation queries the response was YES. [2022-07-19 21:13:36,567 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. [2022-07-19 21:13:36,580 INFO L132 encePairwiseOnDemand]: 178/195 looper letters, 282 selfloop transitions, 91 changer transitions 0/561 dead transitions. [2022-07-19 21:13:36,580 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 561 transitions, 6729 flow [2022-07-19 21:13:36,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-19 21:13:36,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-07-19 21:13:36,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2520 transitions. [2022-07-19 21:13:36,582 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7601809954751131 [2022-07-19 21:13:36,582 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2520 transitions. [2022-07-19 21:13:36,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2520 transitions. [2022-07-19 21:13:36,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:13:36,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2520 transitions. [2022-07-19 21:13:36,585 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) [2022-07-19 21:13:36,587 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) [2022-07-19 21:13:36,587 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) [2022-07-19 21:13:36,587 INFO L186 Difference]: Start difference. First operand has 405 places, 438 transitions, 4645 flow. Second operand 17 states and 2520 transitions. [2022-07-19 21:13:36,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 561 transitions, 6729 flow [2022-07-19 21:13:36,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 561 transitions, 6513 flow, removed 25 selfloop flow, removed 13 redundant places. [2022-07-19 21:13:36,938 INFO L242 Difference]: Finished difference. Result has 412 places, 449 transitions, 4934 flow [2022-07-19 21:13:36,938 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} [2022-07-19 21:13:36,939 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 231 predicate places. [2022-07-19 21:13:36,939 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 449 transitions, 4934 flow [2022-07-19 21:13:36,939 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) [2022-07-19 21:13:36,939 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:13:36,939 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] [2022-07-19 21:13:36,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-19 21:13:36,940 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)] === [2022-07-19 21:13:36,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:13:36,940 INFO L85 PathProgramCache]: Analyzing trace with hash -569528590, now seen corresponding path program 14 times [2022-07-19 21:13:36,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:13:36,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30279362] [2022-07-19 21:13:36,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:13:36,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:13:36,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:13:37,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:13:37,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:13:37,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30279362] [2022-07-19 21:13:37,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30279362] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:13:37,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:13:37,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-07-19 21:13:37,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147764495] [2022-07-19 21:13:37,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:13:37,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-07-19 21:13:37,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:13:37,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-07-19 21:13:37,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2022-07-19 21:13:37,682 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 195 [2022-07-19 21:13:37,683 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) [2022-07-19 21:13:37,683 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:13:37,683 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 195 [2022-07-19 21:13:37,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:13:46,273 INFO L129 PetriNetUnfolder]: 6138/14560 cut-off events. [2022-07-19 21:13:46,273 INFO L130 PetriNetUnfolder]: For 108247/108343 co-relation queries the response was YES. [2022-07-19 21:13:46,440 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. [2022-07-19 21:13:46,486 INFO L132 encePairwiseOnDemand]: 162/195 looper letters, 585 selfloop transitions, 373 changer transitions 0/1023 dead transitions. [2022-07-19 21:13:46,486 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1023 transitions, 13659 flow [2022-07-19 21:13:46,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-07-19 21:13:46,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-07-19 21:13:46,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 3942 transitions. [2022-07-19 21:13:46,492 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5053846153846154 [2022-07-19 21:13:46,493 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 3942 transitions. [2022-07-19 21:13:46,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 3942 transitions. [2022-07-19 21:13:46,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:13:46,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 3942 transitions. [2022-07-19 21:13:46,498 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) [2022-07-19 21:13:46,503 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) [2022-07-19 21:13:46,504 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) [2022-07-19 21:13:46,504 INFO L186 Difference]: Start difference. First operand has 412 places, 449 transitions, 4934 flow. Second operand 40 states and 3942 transitions. [2022-07-19 21:13:46,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1023 transitions, 13659 flow [2022-07-19 21:13:47,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 1023 transitions, 13302 flow, removed 91 selfloop flow, removed 12 redundant places. [2022-07-19 21:13:47,648 INFO L242 Difference]: Finished difference. Result has 455 places, 672 transitions, 9639 flow [2022-07-19 21:13:47,648 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} [2022-07-19 21:13:47,649 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 274 predicate places. [2022-07-19 21:13:47,649 INFO L495 AbstractCegarLoop]: Abstraction has has 455 places, 672 transitions, 9639 flow [2022-07-19 21:13:47,649 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) [2022-07-19 21:13:47,649 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:13:47,649 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] [2022-07-19 21:13:47,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-19 21:13:47,649 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)] === [2022-07-19 21:13:47,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:13:47,650 INFO L85 PathProgramCache]: Analyzing trace with hash -299335042, now seen corresponding path program 15 times [2022-07-19 21:13:47,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:13:47,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17997924] [2022-07-19 21:13:47,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:13:47,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:13:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:13:48,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:13:48,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:13:48,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17997924] [2022-07-19 21:13:48,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17997924] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:13:48,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:13:48,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-19 21:13:48,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267339050] [2022-07-19 21:13:48,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:13:48,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-19 21:13:48,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:13:48,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-19 21:13:48,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-07-19 21:13:48,158 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-19 21:13:48,159 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) [2022-07-19 21:13:48,159 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:13:48,159 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-19 21:13:48,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:13:52,667 INFO L129 PetriNetUnfolder]: 3952/12607 cut-off events. [2022-07-19 21:13:52,668 INFO L130 PetriNetUnfolder]: For 105706/106809 co-relation queries the response was YES. [2022-07-19 21:13:52,952 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. [2022-07-19 21:13:52,989 INFO L132 encePairwiseOnDemand]: 167/195 looper letters, 433 selfloop transitions, 233 changer transitions 0/972 dead transitions. [2022-07-19 21:13:52,989 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 972 transitions, 14814 flow [2022-07-19 21:13:52,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-19 21:13:52,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-19 21:13:52,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2284 transitions. [2022-07-19 21:13:52,992 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5324009324009324 [2022-07-19 21:13:52,992 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2284 transitions. [2022-07-19 21:13:52,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2284 transitions. [2022-07-19 21:13:52,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:13:52,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2284 transitions. [2022-07-19 21:13:52,995 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) [2022-07-19 21:13:52,999 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) [2022-07-19 21:13:52,999 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) [2022-07-19 21:13:52,999 INFO L186 Difference]: Start difference. First operand has 455 places, 672 transitions, 9639 flow. Second operand 22 states and 2284 transitions. [2022-07-19 21:13:53,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 972 transitions, 14814 flow [2022-07-19 21:13:53,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 972 transitions, 14428 flow, removed 37 selfloop flow, removed 11 redundant places. [2022-07-19 21:13:53,824 INFO L242 Difference]: Finished difference. Result has 473 places, 759 transitions, 11562 flow [2022-07-19 21:13:53,825 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} [2022-07-19 21:13:53,827 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 292 predicate places. [2022-07-19 21:13:53,827 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 759 transitions, 11562 flow [2022-07-19 21:13:53,828 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) [2022-07-19 21:13:53,828 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:13:53,828 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] [2022-07-19 21:13:53,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-19 21:13:53,830 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)] === [2022-07-19 21:13:53,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:13:53,830 INFO L85 PathProgramCache]: Analyzing trace with hash -409980462, now seen corresponding path program 16 times [2022-07-19 21:13:53,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:13:53,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743374779] [2022-07-19 21:13:53,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:13:53,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:13:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:13:54,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:13:54,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:13:54,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743374779] [2022-07-19 21:13:54,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743374779] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:13:54,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:13:54,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-19 21:13:54,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191889594] [2022-07-19 21:13:54,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:13:54,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-19 21:13:54,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:13:54,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-19 21:13:54,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-07-19 21:13:54,330 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 195 [2022-07-19 21:13:54,332 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) [2022-07-19 21:13:54,332 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:13:54,332 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 195 [2022-07-19 21:13:54,332 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:14:02,134 INFO L129 PetriNetUnfolder]: 5329/20396 cut-off events. [2022-07-19 21:14:02,134 INFO L130 PetriNetUnfolder]: For 186928/187517 co-relation queries the response was YES. [2022-07-19 21:14:02,554 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. [2022-07-19 21:14:02,624 INFO L132 encePairwiseOnDemand]: 175/195 looper letters, 677 selfloop transitions, 139 changer transitions 0/1116 dead transitions. [2022-07-19 21:14:02,624 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 1116 transitions, 18127 flow [2022-07-19 21:14:02,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-19 21:14:02,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-19 21:14:02,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3090 transitions. [2022-07-19 21:14:02,627 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7202797202797203 [2022-07-19 21:14:02,627 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3090 transitions. [2022-07-19 21:14:02,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3090 transitions. [2022-07-19 21:14:02,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:14:02,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3090 transitions. [2022-07-19 21:14:02,632 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) [2022-07-19 21:14:02,635 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) [2022-07-19 21:14:02,636 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) [2022-07-19 21:14:02,636 INFO L186 Difference]: Start difference. First operand has 473 places, 759 transitions, 11562 flow. Second operand 22 states and 3090 transitions. [2022-07-19 21:14:02,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 1116 transitions, 18127 flow [2022-07-19 21:14:05,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 1116 transitions, 17887 flow, removed 65 selfloop flow, removed 10 redundant places. [2022-07-19 21:14:05,048 INFO L242 Difference]: Finished difference. Result has 491 places, 813 transitions, 12673 flow [2022-07-19 21:14:05,048 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} [2022-07-19 21:14:05,049 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 310 predicate places. [2022-07-19 21:14:05,049 INFO L495 AbstractCegarLoop]: Abstraction has has 491 places, 813 transitions, 12673 flow [2022-07-19 21:14:05,049 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) [2022-07-19 21:14:05,049 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:14:05,050 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] [2022-07-19 21:14:05,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-19 21:14:05,050 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)] === [2022-07-19 21:14:05,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:14:05,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1733583368, now seen corresponding path program 17 times [2022-07-19 21:14:05,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:14:05,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070017253] [2022-07-19 21:14:05,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:14:05,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:14:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:14:05,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:14:05,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:14:05,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070017253] [2022-07-19 21:14:05,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070017253] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:14:05,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:14:05,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-19 21:14:05,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268819233] [2022-07-19 21:14:05,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:14:05,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-19 21:14:05,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:14:05,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-19 21:14:05,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-07-19 21:14:05,518 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-07-19 21:14:05,519 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) [2022-07-19 21:14:05,519 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:14:05,519 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-07-19 21:14:05,520 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:14:12,616 INFO L129 PetriNetUnfolder]: 4970/19581 cut-off events. [2022-07-19 21:14:12,617 INFO L130 PetriNetUnfolder]: For 174906/175563 co-relation queries the response was YES. [2022-07-19 21:14:13,066 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. [2022-07-19 21:14:13,123 INFO L132 encePairwiseOnDemand]: 177/195 looper letters, 578 selfloop transitions, 94 changer transitions 0/1060 dead transitions. [2022-07-19 21:14:13,123 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 1060 transitions, 17023 flow [2022-07-19 21:14:13,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-19 21:14:13,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-07-19 21:14:13,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2535 transitions. [2022-07-19 21:14:13,126 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7647058823529411 [2022-07-19 21:14:13,126 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2535 transitions. [2022-07-19 21:14:13,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2535 transitions. [2022-07-19 21:14:13,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:14:13,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2535 transitions. [2022-07-19 21:14:13,129 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) [2022-07-19 21:14:13,131 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) [2022-07-19 21:14:13,131 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) [2022-07-19 21:14:13,132 INFO L186 Difference]: Start difference. First operand has 491 places, 813 transitions, 12673 flow. Second operand 17 states and 2535 transitions. [2022-07-19 21:14:13,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 1060 transitions, 17023 flow [2022-07-19 21:14:15,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 1060 transitions, 16813 flow, removed 69 selfloop flow, removed 9 redundant places. [2022-07-19 21:14:15,237 INFO L242 Difference]: Finished difference. Result has 503 places, 834 transitions, 13086 flow [2022-07-19 21:14:15,238 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} [2022-07-19 21:14:15,239 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 322 predicate places. [2022-07-19 21:14:15,239 INFO L495 AbstractCegarLoop]: Abstraction has has 503 places, 834 transitions, 13086 flow [2022-07-19 21:14:15,239 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) [2022-07-19 21:14:15,239 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:14:15,239 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] [2022-07-19 21:14:15,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-19 21:14:15,239 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)] === [2022-07-19 21:14:15,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:14:15,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1801798540, now seen corresponding path program 18 times [2022-07-19 21:14:15,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:14:15,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058531370] [2022-07-19 21:14:15,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:14:15,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:14:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:14:15,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:14:15,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:14:15,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058531370] [2022-07-19 21:14:15,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058531370] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:14:15,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:14:15,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-07-19 21:14:15,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982127001] [2022-07-19 21:14:15,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:14:15,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-19 21:14:15,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:14:15,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-19 21:14:15,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-07-19 21:14:15,933 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-07-19 21:14:15,934 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) [2022-07-19 21:14:15,935 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:14:15,935 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-07-19 21:14:15,935 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand