./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 35987657 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-?-3598765 [2022-07-21 08:45:26,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 08:45:26,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 08:45:26,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 08:45:26,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 08:45:26,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 08:45:26,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 08:45:26,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 08:45:26,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 08:45:26,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 08:45:26,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 08:45:26,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 08:45:26,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 08:45:26,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 08:45:26,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 08:45:26,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 08:45:26,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 08:45:26,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 08:45:26,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 08:45:26,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 08:45:26,931 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 08:45:26,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 08:45:26,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 08:45:26,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 08:45:26,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 08:45:26,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 08:45:26,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 08:45:26,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 08:45:26,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 08:45:26,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 08:45:26,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 08:45:26,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 08:45:26,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 08:45:26,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 08:45:26,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 08:45:26,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 08:45:26,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 08:45:26,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 08:45:26,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 08:45:26,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 08:45:26,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 08:45:26,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 08:45:26,955 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 08:45:26,981 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 08:45:26,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 08:45:26,982 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 08:45:26,982 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 08:45:26,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 08:45:26,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 08:45:26,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 08:45:26,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 08:45:26,984 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 08:45:26,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 08:45:26,985 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 08:45:26,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 08:45:26,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 08:45:26,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 08:45:26,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 08:45:26,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 08:45:26,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 08:45:26,986 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 08:45:26,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 08:45:26,986 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 08:45:26,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 08:45:26,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 08:45:26,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 08:45:26,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 08:45:26,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:45:26,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 08:45:26,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 08:45:26,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 08:45:26,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 08:45:26,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 08:45:26,988 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 08:45:26,988 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 08:45:26,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 08:45:26,988 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db [2022-07-21 08:45:27,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 08:45:27,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 08:45:27,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 08:45:27,309 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 08:45:27,309 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 08:45:27,311 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-07-21 08:45:27,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63881450c/133b29c82c7a44388e8306accd342eac/FLAG9ae374a9a [2022-07-21 08:45:27,855 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 08:45:27,855 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-07-21 08:45:27,874 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63881450c/133b29c82c7a44388e8306accd342eac/FLAG9ae374a9a [2022-07-21 08:45:28,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63881450c/133b29c82c7a44388e8306accd342eac [2022-07-21 08:45:28,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 08:45:28,346 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 08:45:28,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 08:45:28,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 08:45:28,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 08:45:28,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:45:28" (1/1) ... [2022-07-21 08:45:28,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c444855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:28, skipping insertion in model container [2022-07-21 08:45:28,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:45:28" (1/1) ... [2022-07-21 08:45:28,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 08:45:28,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 08:45:29,027 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] [2022-07-21 08:45:29,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:45:29,069 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 08:45:29,101 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] [2022-07-21 08:45:29,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:45:29,205 INFO L208 MainTranslator]: Completed translation [2022-07-21 08:45:29,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:29 WrapperNode [2022-07-21 08:45:29,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 08:45:29,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 08:45:29,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 08:45:29,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 08:45:29,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:29" (1/1) ... [2022-07-21 08:45:29,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:29" (1/1) ... [2022-07-21 08:45:29,261 INFO L137 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 133 [2022-07-21 08:45:29,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 08:45:29,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 08:45:29,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 08:45:29,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 08:45:29,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:29" (1/1) ... [2022-07-21 08:45:29,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:29" (1/1) ... [2022-07-21 08:45:29,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:29" (1/1) ... [2022-07-21 08:45:29,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:29" (1/1) ... [2022-07-21 08:45:29,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:29" (1/1) ... [2022-07-21 08:45:29,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:29" (1/1) ... [2022-07-21 08:45:29,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:29" (1/1) ... [2022-07-21 08:45:29,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 08:45:29,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 08:45:29,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 08:45:29,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 08:45:29,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:29" (1/1) ... [2022-07-21 08:45:29,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:45:29,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 08:45:29,327 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) [2022-07-21 08:45:29,329 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 [2022-07-21 08:45:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 08:45:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 08:45:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-21 08:45:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 08:45:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 08:45:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 08:45:29,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 08:45:29,360 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-07-21 08:45:29,360 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-07-21 08:45:29,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 08:45:29,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 08:45:29,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 08:45:29,362 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-21 08:45:29,666 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 08:45:29,667 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 08:45:29,917 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 08:45:29,923 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 08:45:29,925 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 08:45:29,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:45:29 BoogieIcfgContainer [2022-07-21 08:45:29,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 08:45:29,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 08:45:29,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 08:45:29,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 08:45:29,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:45:28" (1/3) ... [2022-07-21 08:45:29,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5616267c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:45:29, skipping insertion in model container [2022-07-21 08:45:29,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:29" (2/3) ... [2022-07-21 08:45:29,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5616267c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:45:29, skipping insertion in model container [2022-07-21 08:45:29,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:45:29" (3/3) ... [2022-07-21 08:45:29,933 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2022-07-21 08:45:29,937 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-21 08:45:29,943 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 08:45:29,943 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-21 08:45:29,944 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-21 08:45:30,011 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-21 08:45:30,038 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 193 places, 195 transitions, 406 flow [2022-07-21 08:45:30,110 INFO L129 PetriNetUnfolder]: 10/240 cut-off events. [2022-07-21 08:45:30,110 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-21 08:45:30,119 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. [2022-07-21 08:45:30,119 INFO L82 GeneralOperation]: Start removeDead. Operand has 193 places, 195 transitions, 406 flow [2022-07-21 08:45:30,123 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 181 transitions, 374 flow [2022-07-21 08:45:30,130 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 08:45:30,135 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@581953f9, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2e174e2f [2022-07-21 08:45:30,135 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-07-21 08:45:30,142 INFO L129 PetriNetUnfolder]: 0/45 cut-off events. [2022-07-21 08:45:30,144 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-21 08:45:30,144 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:30,144 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] [2022-07-21 08:45:30,145 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)] === [2022-07-21 08:45:30,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:30,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1888391755, now seen corresponding path program 1 times [2022-07-21 08:45:30,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:30,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341363749] [2022-07-21 08:45:30,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:30,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:30,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:30,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:30,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341363749] [2022-07-21 08:45:30,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341363749] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:30,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:30,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 08:45:30,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718012876] [2022-07-21 08:45:30,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:30,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 08:45:30,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:30,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 08:45:30,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 08:45:30,571 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 195 [2022-07-21 08:45:30,574 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) [2022-07-21 08:45:30,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:30,575 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 195 [2022-07-21 08:45:30,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:30,940 INFO L129 PetriNetUnfolder]: 361/1046 cut-off events. [2022-07-21 08:45:30,940 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-07-21 08:45:30,946 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. [2022-07-21 08:45:30,952 INFO L132 encePairwiseOnDemand]: 173/195 looper letters, 53 selfloop transitions, 17 changer transitions 1/177 dead transitions. [2022-07-21 08:45:30,953 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 177 transitions, 508 flow [2022-07-21 08:45:30,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 08:45:30,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-21 08:45:30,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1138 transitions. [2022-07-21 08:45:30,985 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6484330484330484 [2022-07-21 08:45:30,986 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1138 transitions. [2022-07-21 08:45:30,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1138 transitions. [2022-07-21 08:45:30,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:30,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1138 transitions. [2022-07-21 08:45:30,997 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) [2022-07-21 08:45:31,005 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) [2022-07-21 08:45:31,006 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) [2022-07-21 08:45:31,008 INFO L186 Difference]: Start difference. First operand has 181 places, 181 transitions, 374 flow. Second operand 9 states and 1138 transitions. [2022-07-21 08:45:31,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 177 transitions, 508 flow [2022-07-21 08:45:31,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 177 transitions, 500 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-21 08:45:31,017 INFO L242 Difference]: Finished difference. Result has 179 places, 170 transitions, 385 flow [2022-07-21 08:45:31,019 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} [2022-07-21 08:45:31,022 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, -2 predicate places. [2022-07-21 08:45:31,022 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 170 transitions, 385 flow [2022-07-21 08:45:31,023 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) [2022-07-21 08:45:31,023 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:31,024 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] [2022-07-21 08:45:31,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 08:45:31,024 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)] === [2022-07-21 08:45:31,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:31,026 INFO L85 PathProgramCache]: Analyzing trace with hash -57843741, now seen corresponding path program 1 times [2022-07-21 08:45:31,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:31,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504154474] [2022-07-21 08:45:31,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:31,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:31,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:31,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:31,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504154474] [2022-07-21 08:45:31,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504154474] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:31,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:31,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 08:45:31,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181625761] [2022-07-21 08:45:31,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:31,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 08:45:31,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:31,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 08:45:31,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 08:45:31,207 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 195 [2022-07-21 08:45:31,208 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) [2022-07-21 08:45:31,209 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:31,209 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 195 [2022-07-21 08:45:31,209 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:31,441 INFO L129 PetriNetUnfolder]: 361/1016 cut-off events. [2022-07-21 08:45:31,445 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-07-21 08:45:31,447 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. [2022-07-21 08:45:31,451 INFO L132 encePairwiseOnDemand]: 176/195 looper letters, 61 selfloop transitions, 18 changer transitions 1/185 dead transitions. [2022-07-21 08:45:31,451 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 185 transitions, 577 flow [2022-07-21 08:45:31,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 08:45:31,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-21 08:45:31,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1261 transitions. [2022-07-21 08:45:31,454 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6466666666666666 [2022-07-21 08:45:31,455 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1261 transitions. [2022-07-21 08:45:31,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1261 transitions. [2022-07-21 08:45:31,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:31,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1261 transitions. [2022-07-21 08:45:31,458 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) [2022-07-21 08:45:31,461 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) [2022-07-21 08:45:31,462 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) [2022-07-21 08:45:31,462 INFO L186 Difference]: Start difference. First operand has 179 places, 170 transitions, 385 flow. Second operand 10 states and 1261 transitions. [2022-07-21 08:45:31,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 185 transitions, 577 flow [2022-07-21 08:45:31,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 185 transitions, 548 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-07-21 08:45:31,478 INFO L242 Difference]: Finished difference. Result has 180 places, 169 transitions, 396 flow [2022-07-21 08:45:31,479 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} [2022-07-21 08:45:31,479 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, -1 predicate places. [2022-07-21 08:45:31,479 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 169 transitions, 396 flow [2022-07-21 08:45:31,480 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) [2022-07-21 08:45:31,480 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:31,480 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] [2022-07-21 08:45:31,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 08:45:31,481 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)] === [2022-07-21 08:45:31,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:31,481 INFO L85 PathProgramCache]: Analyzing trace with hash 5829728, now seen corresponding path program 1 times [2022-07-21 08:45:31,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:31,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269771191] [2022-07-21 08:45:31,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:31,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:31,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:31,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:31,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269771191] [2022-07-21 08:45:31,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269771191] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:31,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:31,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 08:45:31,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545412767] [2022-07-21 08:45:31,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:31,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 08:45:31,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:31,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 08:45:31,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 08:45:31,599 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 195 [2022-07-21 08:45:31,600 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) [2022-07-21 08:45:31,600 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:31,600 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 195 [2022-07-21 08:45:31,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:31,999 INFO L129 PetriNetUnfolder]: 832/2098 cut-off events. [2022-07-21 08:45:32,000 INFO L130 PetriNetUnfolder]: For 131/131 co-relation queries the response was YES. [2022-07-21 08:45:32,004 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. [2022-07-21 08:45:32,010 INFO L132 encePairwiseOnDemand]: 174/195 looper letters, 100 selfloop transitions, 49 changer transitions 0/254 dead transitions. [2022-07-21 08:45:32,010 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 254 transitions, 880 flow [2022-07-21 08:45:32,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 08:45:32,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-21 08:45:32,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1657 transitions. [2022-07-21 08:45:32,014 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6536489151873768 [2022-07-21 08:45:32,014 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1657 transitions. [2022-07-21 08:45:32,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1657 transitions. [2022-07-21 08:45:32,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:32,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1657 transitions. [2022-07-21 08:45:32,017 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) [2022-07-21 08:45:32,021 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) [2022-07-21 08:45:32,022 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) [2022-07-21 08:45:32,022 INFO L186 Difference]: Start difference. First operand has 180 places, 169 transitions, 396 flow. Second operand 13 states and 1657 transitions. [2022-07-21 08:45:32,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 254 transitions, 880 flow [2022-07-21 08:45:32,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 254 transitions, 834 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-07-21 08:45:32,027 INFO L242 Difference]: Finished difference. Result has 192 places, 206 transitions, 666 flow [2022-07-21 08:45:32,027 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} [2022-07-21 08:45:32,028 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 11 predicate places. [2022-07-21 08:45:32,028 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 206 transitions, 666 flow [2022-07-21 08:45:32,028 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) [2022-07-21 08:45:32,028 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:32,028 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] [2022-07-21 08:45:32,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 08:45:32,029 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)] === [2022-07-21 08:45:32,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:32,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2139572029, now seen corresponding path program 1 times [2022-07-21 08:45:32,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:32,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681318192] [2022-07-21 08:45:32,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:32,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:32,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:32,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:32,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681318192] [2022-07-21 08:45:32,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681318192] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:32,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:32,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 08:45:32,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867063233] [2022-07-21 08:45:32,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:32,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 08:45:32,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:32,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 08:45:32,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 08:45:32,187 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 195 [2022-07-21 08:45:32,188 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) [2022-07-21 08:45:32,188 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:32,188 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 195 [2022-07-21 08:45:32,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:32,680 INFO L129 PetriNetUnfolder]: 1084/2667 cut-off events. [2022-07-21 08:45:32,680 INFO L130 PetriNetUnfolder]: For 10874/10936 co-relation queries the response was YES. [2022-07-21 08:45:32,686 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. [2022-07-21 08:45:32,699 INFO L132 encePairwiseOnDemand]: 176/195 looper letters, 74 selfloop transitions, 48 changer transitions 69/295 dead transitions. [2022-07-21 08:45:32,699 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 295 transitions, 1750 flow [2022-07-21 08:45:32,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 08:45:32,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-07-21 08:45:32,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1406 transitions. [2022-07-21 08:45:32,703 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6554778554778555 [2022-07-21 08:45:32,703 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1406 transitions. [2022-07-21 08:45:32,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1406 transitions. [2022-07-21 08:45:32,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:32,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1406 transitions. [2022-07-21 08:45:32,706 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) [2022-07-21 08:45:32,710 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) [2022-07-21 08:45:32,713 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) [2022-07-21 08:45:32,713 INFO L186 Difference]: Start difference. First operand has 192 places, 206 transitions, 666 flow. Second operand 11 states and 1406 transitions. [2022-07-21 08:45:32,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 295 transitions, 1750 flow [2022-07-21 08:45:32,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 295 transitions, 1750 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-07-21 08:45:32,729 INFO L242 Difference]: Finished difference. Result has 210 places, 212 transitions, 979 flow [2022-07-21 08:45:32,730 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} [2022-07-21 08:45:32,730 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 29 predicate places. [2022-07-21 08:45:32,730 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 212 transitions, 979 flow [2022-07-21 08:45:32,731 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) [2022-07-21 08:45:32,731 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:32,731 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] [2022-07-21 08:45:32,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 08:45:32,731 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)] === [2022-07-21 08:45:32,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:32,732 INFO L85 PathProgramCache]: Analyzing trace with hash -902131826, now seen corresponding path program 1 times [2022-07-21 08:45:32,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:32,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742345218] [2022-07-21 08:45:32,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:32,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:32,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:32,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:32,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742345218] [2022-07-21 08:45:32,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742345218] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:32,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:32,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 08:45:32,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366190829] [2022-07-21 08:45:32,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:32,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 08:45:32,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:32,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 08:45:32,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 08:45:32,803 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 195 [2022-07-21 08:45:32,804 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) [2022-07-21 08:45:32,804 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:32,804 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 195 [2022-07-21 08:45:32,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:32,873 INFO L129 PetriNetUnfolder]: 4/168 cut-off events. [2022-07-21 08:45:32,873 INFO L130 PetriNetUnfolder]: For 459/531 co-relation queries the response was YES. [2022-07-21 08:45:32,874 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. [2022-07-21 08:45:32,875 INFO L132 encePairwiseOnDemand]: 190/195 looper letters, 9 selfloop transitions, 4 changer transitions 0/140 dead transitions. [2022-07-21 08:45:32,875 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 140 transitions, 438 flow [2022-07-21 08:45:32,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 08:45:32,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-07-21 08:45:32,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1022 transitions. [2022-07-21 08:45:32,877 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8735042735042735 [2022-07-21 08:45:32,877 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1022 transitions. [2022-07-21 08:45:32,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1022 transitions. [2022-07-21 08:45:32,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:32,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1022 transitions. [2022-07-21 08:45:32,880 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) [2022-07-21 08:45:32,882 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) [2022-07-21 08:45:32,883 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) [2022-07-21 08:45:32,883 INFO L186 Difference]: Start difference. First operand has 210 places, 212 transitions, 979 flow. Second operand 6 states and 1022 transitions. [2022-07-21 08:45:32,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 140 transitions, 438 flow [2022-07-21 08:45:32,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 140 transitions, 318 flow, removed 40 selfloop flow, removed 19 redundant places. [2022-07-21 08:45:32,886 INFO L242 Difference]: Finished difference. Result has 153 places, 140 transitions, 300 flow [2022-07-21 08:45:32,886 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} [2022-07-21 08:45:32,888 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, -28 predicate places. [2022-07-21 08:45:32,888 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 140 transitions, 300 flow [2022-07-21 08:45:32,889 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) [2022-07-21 08:45:32,889 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:32,889 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] [2022-07-21 08:45:32,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 08:45:32,889 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)] === [2022-07-21 08:45:32,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:32,891 INFO L85 PathProgramCache]: Analyzing trace with hash -971686872, now seen corresponding path program 1 times [2022-07-21 08:45:32,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:32,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293398639] [2022-07-21 08:45:32,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:32,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:33,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:33,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:33,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293398639] [2022-07-21 08:45:33,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293398639] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:33,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:33,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-07-21 08:45:33,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282171192] [2022-07-21 08:45:33,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:33,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-21 08:45:33,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:33,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-21 08:45:33,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-07-21 08:45:33,712 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-07-21 08:45:33,714 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) [2022-07-21 08:45:33,714 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:33,714 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-07-21 08:45:33,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:35,450 INFO L129 PetriNetUnfolder]: 698/1674 cut-off events. [2022-07-21 08:45:35,450 INFO L130 PetriNetUnfolder]: For 148/148 co-relation queries the response was YES. [2022-07-21 08:45:35,453 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. [2022-07-21 08:45:35,460 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 154 selfloop transitions, 29 changer transitions 0/257 dead transitions. [2022-07-21 08:45:35,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 257 transitions, 949 flow [2022-07-21 08:45:35,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-21 08:45:35,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-07-21 08:45:35,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2461 transitions. [2022-07-21 08:45:35,465 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5487179487179488 [2022-07-21 08:45:35,465 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2461 transitions. [2022-07-21 08:45:35,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2461 transitions. [2022-07-21 08:45:35,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:35,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2461 transitions. [2022-07-21 08:45:35,470 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) [2022-07-21 08:45:35,475 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) [2022-07-21 08:45:35,476 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) [2022-07-21 08:45:35,476 INFO L186 Difference]: Start difference. First operand has 153 places, 140 transitions, 300 flow. Second operand 23 states and 2461 transitions. [2022-07-21 08:45:35,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 257 transitions, 949 flow [2022-07-21 08:45:35,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 257 transitions, 942 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-21 08:45:35,481 INFO L242 Difference]: Finished difference. Result has 176 places, 150 transitions, 400 flow [2022-07-21 08:45:35,481 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} [2022-07-21 08:45:35,482 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, -5 predicate places. [2022-07-21 08:45:35,482 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 150 transitions, 400 flow [2022-07-21 08:45:35,483 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) [2022-07-21 08:45:35,483 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:35,483 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] [2022-07-21 08:45:35,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 08:45:35,483 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)] === [2022-07-21 08:45:35,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:35,484 INFO L85 PathProgramCache]: Analyzing trace with hash 934474332, now seen corresponding path program 2 times [2022-07-21 08:45:35,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:35,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094894943] [2022-07-21 08:45:35,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:35,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:35,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:35,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:35,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094894943] [2022-07-21 08:45:35,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094894943] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:35,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:35,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-21 08:45:35,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058216825] [2022-07-21 08:45:35,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:35,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 08:45:35,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:35,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 08:45:35,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-07-21 08:45:35,977 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-21 08:45:35,978 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) [2022-07-21 08:45:35,979 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:35,979 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-21 08:45:35,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:36,722 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]) [2022-07-21 08:45:36,722 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-07-21 08:45:36,723 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-21 08:45:36,723 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-21 08:45:36,723 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-21 08:45:36,738 INFO L382 tUnfolder$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]) [2022-07-21 08:45:36,738 INFO L384 tUnfolder$Statistics]: this new event has 103 ancestors and is cut-off event [2022-07-21 08:45:36,738 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-21 08:45:36,739 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-21 08:45:36,739 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-21 08:45:37,156 INFO L129 PetriNetUnfolder]: 749/1961 cut-off events. [2022-07-21 08:45:37,156 INFO L130 PetriNetUnfolder]: For 575/575 co-relation queries the response was YES. [2022-07-21 08:45:37,160 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. [2022-07-21 08:45:37,166 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 155 selfloop transitions, 32 changer transitions 0/264 dead transitions. [2022-07-21 08:45:37,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 264 transitions, 1104 flow [2022-07-21 08:45:37,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-21 08:45:37,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-21 08:45:37,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2284 transitions. [2022-07-21 08:45:37,171 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5324009324009324 [2022-07-21 08:45:37,171 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2284 transitions. [2022-07-21 08:45:37,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2284 transitions. [2022-07-21 08:45:37,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:37,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2284 transitions. [2022-07-21 08:45:37,176 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) [2022-07-21 08:45:37,181 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) [2022-07-21 08:45:37,182 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) [2022-07-21 08:45:37,182 INFO L186 Difference]: Start difference. First operand has 176 places, 150 transitions, 400 flow. Second operand 22 states and 2284 transitions. [2022-07-21 08:45:37,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 264 transitions, 1104 flow [2022-07-21 08:45:37,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 264 transitions, 1061 flow, removed 0 selfloop flow, removed 16 redundant places. [2022-07-21 08:45:37,187 INFO L242 Difference]: Finished difference. Result has 192 places, 171 transitions, 542 flow [2022-07-21 08:45:37,187 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} [2022-07-21 08:45:37,188 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 11 predicate places. [2022-07-21 08:45:37,188 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 171 transitions, 542 flow [2022-07-21 08:45:37,189 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) [2022-07-21 08:45:37,189 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:37,189 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] [2022-07-21 08:45:37,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 08:45:37,190 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)] === [2022-07-21 08:45:37,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:37,190 INFO L85 PathProgramCache]: Analyzing trace with hash -424530496, now seen corresponding path program 3 times [2022-07-21 08:45:37,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:37,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220102260] [2022-07-21 08:45:37,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:37,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:37,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:37,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:37,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220102260] [2022-07-21 08:45:37,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220102260] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:37,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:37,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-21 08:45:37,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118544969] [2022-07-21 08:45:37,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:37,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 08:45:37,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:37,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 08:45:37,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-07-21 08:45:37,731 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 195 [2022-07-21 08:45:37,733 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) [2022-07-21 08:45:37,733 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:37,733 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 195 [2022-07-21 08:45:37,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:39,431 INFO L129 PetriNetUnfolder]: 1035/2621 cut-off events. [2022-07-21 08:45:39,431 INFO L130 PetriNetUnfolder]: For 2006/2052 co-relation queries the response was YES. [2022-07-21 08:45:39,438 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. [2022-07-21 08:45:39,448 INFO L132 encePairwiseOnDemand]: 175/195 looper letters, 163 selfloop transitions, 33 changer transitions 0/304 dead transitions. [2022-07-21 08:45:39,448 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 304 transitions, 1545 flow [2022-07-21 08:45:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 08:45:39,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-07-21 08:45:39,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2658 transitions. [2022-07-21 08:45:39,453 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7174089068825911 [2022-07-21 08:45:39,453 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2658 transitions. [2022-07-21 08:45:39,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2658 transitions. [2022-07-21 08:45:39,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:39,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2658 transitions. [2022-07-21 08:45:39,458 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) [2022-07-21 08:45:39,462 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) [2022-07-21 08:45:39,463 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) [2022-07-21 08:45:39,463 INFO L186 Difference]: Start difference. First operand has 192 places, 171 transitions, 542 flow. Second operand 19 states and 2658 transitions. [2022-07-21 08:45:39,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 304 transitions, 1545 flow [2022-07-21 08:45:39,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 304 transitions, 1513 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-07-21 08:45:39,472 INFO L242 Difference]: Finished difference. Result has 210 places, 186 transitions, 707 flow [2022-07-21 08:45:39,472 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} [2022-07-21 08:45:39,473 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 29 predicate places. [2022-07-21 08:45:39,473 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 186 transitions, 707 flow [2022-07-21 08:45:39,474 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) [2022-07-21 08:45:39,474 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:39,474 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] [2022-07-21 08:45:39,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 08:45:39,475 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)] === [2022-07-21 08:45:39,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:39,475 INFO L85 PathProgramCache]: Analyzing trace with hash -97507748, now seen corresponding path program 4 times [2022-07-21 08:45:39,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:39,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369339388] [2022-07-21 08:45:39,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:39,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:39,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:39,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:39,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369339388] [2022-07-21 08:45:39,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369339388] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:39,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:39,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-21 08:45:39,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807306605] [2022-07-21 08:45:39,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:39,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 08:45:39,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:39,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 08:45:39,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-07-21 08:45:39,890 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-21 08:45:39,892 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) [2022-07-21 08:45:39,892 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:39,892 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-21 08:45:39,892 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:41,153 INFO L129 PetriNetUnfolder]: 1204/3156 cut-off events. [2022-07-21 08:45:41,153 INFO L130 PetriNetUnfolder]: For 2645/2675 co-relation queries the response was YES. [2022-07-21 08:45:41,166 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. [2022-07-21 08:45:41,177 INFO L132 encePairwiseOnDemand]: 167/195 looper letters, 143 selfloop transitions, 50 changer transitions 0/276 dead transitions. [2022-07-21 08:45:41,177 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 276 transitions, 1408 flow [2022-07-21 08:45:41,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 08:45:41,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-07-21 08:45:41,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2072 transitions. [2022-07-21 08:45:41,180 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5312820512820513 [2022-07-21 08:45:41,180 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2072 transitions. [2022-07-21 08:45:41,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2072 transitions. [2022-07-21 08:45:41,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:41,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2072 transitions. [2022-07-21 08:45:41,184 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) [2022-07-21 08:45:41,187 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) [2022-07-21 08:45:41,188 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) [2022-07-21 08:45:41,188 INFO L186 Difference]: Start difference. First operand has 210 places, 186 transitions, 707 flow. Second operand 20 states and 2072 transitions. [2022-07-21 08:45:41,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 276 transitions, 1408 flow [2022-07-21 08:45:41,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 276 transitions, 1372 flow, removed 5 selfloop flow, removed 10 redundant places. [2022-07-21 08:45:41,205 INFO L242 Difference]: Finished difference. Result has 227 places, 201 transitions, 915 flow [2022-07-21 08:45:41,205 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} [2022-07-21 08:45:41,206 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 46 predicate places. [2022-07-21 08:45:41,206 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 201 transitions, 915 flow [2022-07-21 08:45:41,207 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) [2022-07-21 08:45:41,207 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:41,207 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] [2022-07-21 08:45:41,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 08:45:41,207 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)] === [2022-07-21 08:45:41,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:41,208 INFO L85 PathProgramCache]: Analyzing trace with hash 184447290, now seen corresponding path program 5 times [2022-07-21 08:45:41,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:41,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340253371] [2022-07-21 08:45:41,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:41,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:41,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:41,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:41,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340253371] [2022-07-21 08:45:41,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340253371] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:41,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:41,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-21 08:45:41,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036105545] [2022-07-21 08:45:41,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:41,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 08:45:41,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:41,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 08:45:41,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-07-21 08:45:41,624 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-21 08:45:41,626 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) [2022-07-21 08:45:41,626 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:41,626 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-21 08:45:41,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:43,085 INFO L129 PetriNetUnfolder]: 1356/3599 cut-off events. [2022-07-21 08:45:43,085 INFO L130 PetriNetUnfolder]: For 6006/6052 co-relation queries the response was YES. [2022-07-21 08:45:43,099 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. [2022-07-21 08:45:43,109 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 188 selfloop transitions, 51 changer transitions 0/322 dead transitions. [2022-07-21 08:45:43,110 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 322 transitions, 2013 flow [2022-07-21 08:45:43,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-21 08:45:43,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-21 08:45:43,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2284 transitions. [2022-07-21 08:45:43,113 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5324009324009324 [2022-07-21 08:45:43,113 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2284 transitions. [2022-07-21 08:45:43,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2284 transitions. [2022-07-21 08:45:43,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:43,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2284 transitions. [2022-07-21 08:45:43,117 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) [2022-07-21 08:45:43,122 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) [2022-07-21 08:45:43,123 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) [2022-07-21 08:45:43,123 INFO L186 Difference]: Start difference. First operand has 227 places, 201 transitions, 915 flow. Second operand 22 states and 2284 transitions. [2022-07-21 08:45:43,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 322 transitions, 2013 flow [2022-07-21 08:45:43,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 322 transitions, 1952 flow, removed 6 selfloop flow, removed 9 redundant places. [2022-07-21 08:45:43,149 INFO L242 Difference]: Finished difference. Result has 249 places, 222 transitions, 1208 flow [2022-07-21 08:45:43,150 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} [2022-07-21 08:45:43,150 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 68 predicate places. [2022-07-21 08:45:43,150 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 222 transitions, 1208 flow [2022-07-21 08:45:43,151 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) [2022-07-21 08:45:43,151 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:43,151 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] [2022-07-21 08:45:43,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 08:45:43,151 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)] === [2022-07-21 08:45:43,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:43,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1362620956, now seen corresponding path program 6 times [2022-07-21 08:45:43,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:43,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933623753] [2022-07-21 08:45:43,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:43,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:43,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:43,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:43,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933623753] [2022-07-21 08:45:43,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933623753] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:43,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:43,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-21 08:45:43,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010110514] [2022-07-21 08:45:43,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:43,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 08:45:43,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:43,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 08:45:43,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-07-21 08:45:43,534 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-21 08:45:43,536 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) [2022-07-21 08:45:43,536 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:43,536 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-21 08:45:43,536 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:44,908 INFO L129 PetriNetUnfolder]: 1364/3699 cut-off events. [2022-07-21 08:45:44,909 INFO L130 PetriNetUnfolder]: For 8340/8364 co-relation queries the response was YES. [2022-07-21 08:45:44,922 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. [2022-07-21 08:45:44,933 INFO L132 encePairwiseOnDemand]: 170/195 looper letters, 181 selfloop transitions, 56 changer transitions 0/320 dead transitions. [2022-07-21 08:45:44,933 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 320 transitions, 2229 flow [2022-07-21 08:45:44,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-21 08:45:44,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-07-21 08:45:44,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2167 transitions. [2022-07-21 08:45:44,936 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5291819291819292 [2022-07-21 08:45:44,936 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2167 transitions. [2022-07-21 08:45:44,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2167 transitions. [2022-07-21 08:45:44,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:44,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2167 transitions. [2022-07-21 08:45:44,939 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) [2022-07-21 08:45:44,943 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) [2022-07-21 08:45:44,943 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) [2022-07-21 08:45:44,944 INFO L186 Difference]: Start difference. First operand has 249 places, 222 transitions, 1208 flow. Second operand 21 states and 2167 transitions. [2022-07-21 08:45:44,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 320 transitions, 2229 flow [2022-07-21 08:45:44,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 320 transitions, 2164 flow, removed 17 selfloop flow, removed 7 redundant places. [2022-07-21 08:45:44,982 INFO L242 Difference]: Finished difference. Result has 274 places, 241 transitions, 1528 flow [2022-07-21 08:45:44,983 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} [2022-07-21 08:45:44,983 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 93 predicate places. [2022-07-21 08:45:44,983 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 241 transitions, 1528 flow [2022-07-21 08:45:44,984 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) [2022-07-21 08:45:44,984 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:44,984 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] [2022-07-21 08:45:44,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 08:45:44,984 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)] === [2022-07-21 08:45:44,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:44,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1009366940, now seen corresponding path program 7 times [2022-07-21 08:45:44,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:44,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887429799] [2022-07-21 08:45:44,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:44,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:45,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:45,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:45,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887429799] [2022-07-21 08:45:45,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887429799] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:45,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:45,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-21 08:45:45,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636695843] [2022-07-21 08:45:45,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:45,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 08:45:45,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:45,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 08:45:45,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-07-21 08:45:45,396 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-21 08:45:45,397 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) [2022-07-21 08:45:45,397 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:45,397 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-21 08:45:45,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:47,085 INFO L129 PetriNetUnfolder]: 1482/4117 cut-off events. [2022-07-21 08:45:47,085 INFO L130 PetriNetUnfolder]: For 12017/12091 co-relation queries the response was YES. [2022-07-21 08:45:47,103 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. [2022-07-21 08:45:47,114 INFO L132 encePairwiseOnDemand]: 167/195 looper letters, 183 selfloop transitions, 91 changer transitions 0/357 dead transitions. [2022-07-21 08:45:47,114 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 357 transitions, 2717 flow [2022-07-21 08:45:47,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-21 08:45:47,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-21 08:45:47,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2292 transitions. [2022-07-21 08:45:47,117 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5342657342657343 [2022-07-21 08:45:47,117 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2292 transitions. [2022-07-21 08:45:47,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2292 transitions. [2022-07-21 08:45:47,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:47,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2292 transitions. [2022-07-21 08:45:47,120 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) [2022-07-21 08:45:47,124 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) [2022-07-21 08:45:47,125 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) [2022-07-21 08:45:47,125 INFO L186 Difference]: Start difference. First operand has 274 places, 241 transitions, 1528 flow. Second operand 22 states and 2292 transitions. [2022-07-21 08:45:47,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 357 transitions, 2717 flow [2022-07-21 08:45:47,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 357 transitions, 2643 flow, removed 29 selfloop flow, removed 6 redundant places. [2022-07-21 08:45:47,181 INFO L242 Difference]: Finished difference. Result has 295 places, 260 transitions, 1955 flow [2022-07-21 08:45:47,182 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} [2022-07-21 08:45:47,182 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 114 predicate places. [2022-07-21 08:45:47,182 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 260 transitions, 1955 flow [2022-07-21 08:45:47,183 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) [2022-07-21 08:45:47,183 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:47,183 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] [2022-07-21 08:45:47,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 08:45:47,183 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)] === [2022-07-21 08:45:47,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:47,184 INFO L85 PathProgramCache]: Analyzing trace with hash -218328318, now seen corresponding path program 8 times [2022-07-21 08:45:47,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:47,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096109023] [2022-07-21 08:45:47,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:47,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:47,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:47,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:47,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096109023] [2022-07-21 08:45:47,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096109023] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:47,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:47,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-07-21 08:45:47,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976067227] [2022-07-21 08:45:47,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:47,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-21 08:45:47,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:47,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-21 08:45:47,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2022-07-21 08:45:47,711 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 195 [2022-07-21 08:45:47,712 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) [2022-07-21 08:45:47,712 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:47,712 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 195 [2022-07-21 08:45:47,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:54,776 INFO L129 PetriNetUnfolder]: 3146/7105 cut-off events. [2022-07-21 08:45:54,776 INFO L130 PetriNetUnfolder]: For 27134/27214 co-relation queries the response was YES. [2022-07-21 08:45:54,808 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. [2022-07-21 08:45:54,826 INFO L132 encePairwiseOnDemand]: 165/195 looper letters, 407 selfloop transitions, 183 changer transitions 0/655 dead transitions. [2022-07-21 08:45:54,826 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 655 transitions, 5975 flow [2022-07-21 08:45:54,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-07-21 08:45:54,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2022-07-21 08:45:54,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 5284 transitions. [2022-07-21 08:45:54,831 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.4926806526806527 [2022-07-21 08:45:54,831 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 5284 transitions. [2022-07-21 08:45:54,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 5284 transitions. [2022-07-21 08:45:54,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:54,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 5284 transitions. [2022-07-21 08:45:54,838 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) [2022-07-21 08:45:54,848 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) [2022-07-21 08:45:54,850 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) [2022-07-21 08:45:54,850 INFO L186 Difference]: Start difference. First operand has 295 places, 260 transitions, 1955 flow. Second operand 55 states and 5284 transitions. [2022-07-21 08:45:54,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 655 transitions, 5975 flow [2022-07-21 08:45:54,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 655 transitions, 5718 flow, removed 47 selfloop flow, removed 9 redundant places. [2022-07-21 08:45:54,990 INFO L242 Difference]: Finished difference. Result has 361 places, 373 transitions, 3505 flow [2022-07-21 08:45:54,991 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} [2022-07-21 08:45:54,992 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 180 predicate places. [2022-07-21 08:45:54,992 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 373 transitions, 3505 flow [2022-07-21 08:45:54,992 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) [2022-07-21 08:45:54,992 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:54,993 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] [2022-07-21 08:45:54,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 08:45:54,993 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)] === [2022-07-21 08:45:54,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:54,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1561724186, now seen corresponding path program 9 times [2022-07-21 08:45:54,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:54,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495814658] [2022-07-21 08:45:54,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:54,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:55,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:55,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:55,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495814658] [2022-07-21 08:45:55,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495814658] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:55,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:55,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-07-21 08:45:55,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948591736] [2022-07-21 08:45:55,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:55,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-21 08:45:55,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:55,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-21 08:45:55,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-07-21 08:45:55,507 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-07-21 08:45:55,508 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) [2022-07-21 08:45:55,509 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:55,509 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-07-21 08:45:55,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:58,935 INFO L129 PetriNetUnfolder]: 4150/10178 cut-off events. [2022-07-21 08:45:58,935 INFO L130 PetriNetUnfolder]: For 46108/46318 co-relation queries the response was YES. [2022-07-21 08:45:59,000 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. [2022-07-21 08:45:59,028 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 430 selfloop transitions, 85 changer transitions 0/626 dead transitions. [2022-07-21 08:45:59,028 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 626 transitions, 7280 flow [2022-07-21 08:45:59,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-21 08:45:59,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-07-21 08:45:59,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2477 transitions. [2022-07-21 08:45:59,041 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5522853957636567 [2022-07-21 08:45:59,041 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2477 transitions. [2022-07-21 08:45:59,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2477 transitions. [2022-07-21 08:45:59,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:59,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2477 transitions. [2022-07-21 08:45:59,048 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) [2022-07-21 08:45:59,054 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) [2022-07-21 08:45:59,055 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) [2022-07-21 08:45:59,055 INFO L186 Difference]: Start difference. First operand has 361 places, 373 transitions, 3505 flow. Second operand 23 states and 2477 transitions. [2022-07-21 08:45:59,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 626 transitions, 7280 flow [2022-07-21 08:45:59,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 626 transitions, 6838 flow, removed 151 selfloop flow, removed 10 redundant places. [2022-07-21 08:45:59,390 INFO L242 Difference]: Finished difference. Result has 379 places, 395 transitions, 3630 flow [2022-07-21 08:45:59,391 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} [2022-07-21 08:45:59,391 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 198 predicate places. [2022-07-21 08:45:59,392 INFO L495 AbstractCegarLoop]: Abstraction has has 379 places, 395 transitions, 3630 flow [2022-07-21 08:45:59,392 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) [2022-07-21 08:45:59,392 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:59,392 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] [2022-07-21 08:45:59,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 08:45:59,392 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)] === [2022-07-21 08:45:59,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:59,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1125317570, now seen corresponding path program 10 times [2022-07-21 08:45:59,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:59,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598183566] [2022-07-21 08:45:59,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:59,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:59,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:59,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:59,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598183566] [2022-07-21 08:45:59,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598183566] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:59,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:59,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-07-21 08:45:59,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387622121] [2022-07-21 08:45:59,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:59,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-21 08:45:59,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:59,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-21 08:45:59,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-07-21 08:45:59,897 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-07-21 08:45:59,898 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) [2022-07-21 08:45:59,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:59,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-07-21 08:45:59,899 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:46:03,570 INFO L129 PetriNetUnfolder]: 4131/10351 cut-off events. [2022-07-21 08:46:03,570 INFO L130 PetriNetUnfolder]: For 50188/50345 co-relation queries the response was YES. [2022-07-21 08:46:03,650 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. [2022-07-21 08:46:03,679 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 415 selfloop transitions, 111 changer transitions 0/637 dead transitions. [2022-07-21 08:46:03,679 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 637 transitions, 7179 flow [2022-07-21 08:46:03,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-21 08:46:03,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-07-21 08:46:03,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2487 transitions. [2022-07-21 08:46:03,682 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5545150501672241 [2022-07-21 08:46:03,682 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2487 transitions. [2022-07-21 08:46:03,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2487 transitions. [2022-07-21 08:46:03,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:46:03,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2487 transitions. [2022-07-21 08:46:03,686 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) [2022-07-21 08:46:03,690 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) [2022-07-21 08:46:03,691 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) [2022-07-21 08:46:03,691 INFO L186 Difference]: Start difference. First operand has 379 places, 395 transitions, 3630 flow. Second operand 23 states and 2487 transitions. [2022-07-21 08:46:03,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 637 transitions, 7179 flow [2022-07-21 08:46:04,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 637 transitions, 7015 flow, removed 27 selfloop flow, removed 15 redundant places. [2022-07-21 08:46:04,143 INFO L242 Difference]: Finished difference. Result has 392 places, 413 transitions, 4072 flow [2022-07-21 08:46:04,143 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} [2022-07-21 08:46:04,144 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 211 predicate places. [2022-07-21 08:46:04,144 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 413 transitions, 4072 flow [2022-07-21 08:46:04,144 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) [2022-07-21 08:46:04,144 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:46:04,144 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] [2022-07-21 08:46:04,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 08:46:04,145 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)] === [2022-07-21 08:46:04,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:46:04,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1051639876, now seen corresponding path program 11 times [2022-07-21 08:46:04,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:46:04,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756768805] [2022-07-21 08:46:04,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:46:04,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:46:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:46:04,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:46:04,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:46:04,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756768805] [2022-07-21 08:46:04,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756768805] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:46:04,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:46:04,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-21 08:46:04,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355323714] [2022-07-21 08:46:04,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:46:04,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-21 08:46:04,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:46:04,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-21 08:46:04,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-07-21 08:46:04,617 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-07-21 08:46:04,619 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) [2022-07-21 08:46:04,619 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:46:04,619 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-07-21 08:46:04,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:46:07,118 INFO L129 PetriNetUnfolder]: 1778/5845 cut-off events. [2022-07-21 08:46:07,118 INFO L130 PetriNetUnfolder]: For 42813/43027 co-relation queries the response was YES. [2022-07-21 08:46:07,162 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. [2022-07-21 08:46:07,179 INFO L132 encePairwiseOnDemand]: 177/195 looper letters, 298 selfloop transitions, 82 changer transitions 0/568 dead transitions. [2022-07-21 08:46:07,179 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 568 transitions, 6684 flow [2022-07-21 08:46:07,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 08:46:07,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-07-21 08:46:07,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2526 transitions. [2022-07-21 08:46:07,181 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7619909502262443 [2022-07-21 08:46:07,181 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2526 transitions. [2022-07-21 08:46:07,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2526 transitions. [2022-07-21 08:46:07,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:46:07,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2526 transitions. [2022-07-21 08:46:07,184 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) [2022-07-21 08:46:07,187 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) [2022-07-21 08:46:07,187 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) [2022-07-21 08:46:07,187 INFO L186 Difference]: Start difference. First operand has 392 places, 413 transitions, 4072 flow. Second operand 17 states and 2526 transitions. [2022-07-21 08:46:07,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 568 transitions, 6684 flow [2022-07-21 08:46:07,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 568 transitions, 6400 flow, removed 80 selfloop flow, removed 16 redundant places. [2022-07-21 08:46:07,508 INFO L242 Difference]: Finished difference. Result has 397 places, 430 transitions, 4411 flow [2022-07-21 08:46:07,509 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} [2022-07-21 08:46:07,509 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 216 predicate places. [2022-07-21 08:46:07,509 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 430 transitions, 4411 flow [2022-07-21 08:46:07,509 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) [2022-07-21 08:46:07,510 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:46:07,510 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] [2022-07-21 08:46:07,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 08:46:07,510 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)] === [2022-07-21 08:46:07,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:46:07,510 INFO L85 PathProgramCache]: Analyzing trace with hash -382562200, now seen corresponding path program 12 times [2022-07-21 08:46:07,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:46:07,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625943569] [2022-07-21 08:46:07,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:46:07,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:46:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:46:07,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:46:07,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:46:07,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625943569] [2022-07-21 08:46:07,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625943569] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:46:07,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:46:07,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-21 08:46:07,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085222491] [2022-07-21 08:46:07,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:46:07,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-21 08:46:07,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:46:07,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-21 08:46:07,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-07-21 08:46:07,944 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-07-21 08:46:07,946 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) [2022-07-21 08:46:07,946 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:46:07,946 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-07-21 08:46:07,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:46:10,414 INFO L129 PetriNetUnfolder]: 1815/6130 cut-off events. [2022-07-21 08:46:10,414 INFO L130 PetriNetUnfolder]: For 46149/46378 co-relation queries the response was YES. [2022-07-21 08:46:10,466 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. [2022-07-21 08:46:10,483 INFO L132 encePairwiseOnDemand]: 178/195 looper letters, 274 selfloop transitions, 99 changer transitions 0/561 dead transitions. [2022-07-21 08:46:10,483 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 561 transitions, 6552 flow [2022-07-21 08:46:10,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 08:46:10,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-07-21 08:46:10,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2519 transitions. [2022-07-21 08:46:10,485 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7598793363499246 [2022-07-21 08:46:10,486 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2519 transitions. [2022-07-21 08:46:10,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2519 transitions. [2022-07-21 08:46:10,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:46:10,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2519 transitions. [2022-07-21 08:46:10,488 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) [2022-07-21 08:46:10,490 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) [2022-07-21 08:46:10,490 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) [2022-07-21 08:46:10,490 INFO L186 Difference]: Start difference. First operand has 397 places, 430 transitions, 4411 flow. Second operand 17 states and 2519 transitions. [2022-07-21 08:46:10,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 561 transitions, 6552 flow [2022-07-21 08:46:10,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 561 transitions, 6374 flow, removed 31 selfloop flow, removed 11 redundant places. [2022-07-21 08:46:10,892 INFO L242 Difference]: Finished difference. Result has 405 places, 438 transitions, 4645 flow [2022-07-21 08:46:10,893 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} [2022-07-21 08:46:10,893 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 224 predicate places. [2022-07-21 08:46:10,893 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 438 transitions, 4645 flow [2022-07-21 08:46:10,894 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) [2022-07-21 08:46:10,894 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:46:10,894 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] [2022-07-21 08:46:10,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 08:46:10,894 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)] === [2022-07-21 08:46:10,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:46:10,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1263906712, now seen corresponding path program 13 times [2022-07-21 08:46:10,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:46:10,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175653897] [2022-07-21 08:46:10,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:46:10,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:46:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:46:11,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:46:11,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:46:11,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175653897] [2022-07-21 08:46:11,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175653897] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:46:11,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:46:11,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-21 08:46:11,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586150729] [2022-07-21 08:46:11,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:46:11,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-21 08:46:11,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:46:11,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-21 08:46:11,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-07-21 08:46:11,297 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-07-21 08:46:11,298 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) [2022-07-21 08:46:11,298 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:46:11,298 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-07-21 08:46:11,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:46:13,502 INFO L129 PetriNetUnfolder]: 1575/5298 cut-off events. [2022-07-21 08:46:13,502 INFO L130 PetriNetUnfolder]: For 43572/43783 co-relation queries the response was YES. [2022-07-21 08:46:13,546 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. [2022-07-21 08:46:13,559 INFO L132 encePairwiseOnDemand]: 178/195 looper letters, 282 selfloop transitions, 91 changer transitions 0/561 dead transitions. [2022-07-21 08:46:13,560 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 561 transitions, 6729 flow [2022-07-21 08:46:13,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 08:46:13,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-07-21 08:46:13,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2520 transitions. [2022-07-21 08:46:13,562 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7601809954751131 [2022-07-21 08:46:13,562 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2520 transitions. [2022-07-21 08:46:13,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2520 transitions. [2022-07-21 08:46:13,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:46:13,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2520 transitions. [2022-07-21 08:46:13,564 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) [2022-07-21 08:46:13,566 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) [2022-07-21 08:46:13,566 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) [2022-07-21 08:46:13,567 INFO L186 Difference]: Start difference. First operand has 405 places, 438 transitions, 4645 flow. Second operand 17 states and 2520 transitions. [2022-07-21 08:46:13,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 561 transitions, 6729 flow [2022-07-21 08:46:13,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 561 transitions, 6513 flow, removed 25 selfloop flow, removed 13 redundant places. [2022-07-21 08:46:13,862 INFO L242 Difference]: Finished difference. Result has 412 places, 449 transitions, 4934 flow [2022-07-21 08:46:13,863 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} [2022-07-21 08:46:13,863 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 231 predicate places. [2022-07-21 08:46:13,863 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 449 transitions, 4934 flow [2022-07-21 08:46:13,863 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) [2022-07-21 08:46:13,864 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:46:13,864 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] [2022-07-21 08:46:13,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 08:46:13,864 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)] === [2022-07-21 08:46:13,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:46:13,864 INFO L85 PathProgramCache]: Analyzing trace with hash -569528590, now seen corresponding path program 14 times [2022-07-21 08:46:13,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:46:13,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033458216] [2022-07-21 08:46:13,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:46:13,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:46:13,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:46:14,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:46:14,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:46:14,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033458216] [2022-07-21 08:46:14,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033458216] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:46:14,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:46:14,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-07-21 08:46:14,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904020049] [2022-07-21 08:46:14,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:46:14,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-07-21 08:46:14,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:46:14,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-07-21 08:46:14,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2022-07-21 08:46:14,554 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 195 [2022-07-21 08:46:14,555 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) [2022-07-21 08:46:14,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:46:14,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 195 [2022-07-21 08:46:14,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:46:22,510 INFO L129 PetriNetUnfolder]: 6138/14560 cut-off events. [2022-07-21 08:46:22,510 INFO L130 PetriNetUnfolder]: For 108247/108343 co-relation queries the response was YES. [2022-07-21 08:46:22,638 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. [2022-07-21 08:46:22,679 INFO L132 encePairwiseOnDemand]: 162/195 looper letters, 585 selfloop transitions, 373 changer transitions 0/1023 dead transitions. [2022-07-21 08:46:22,679 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1023 transitions, 13659 flow [2022-07-21 08:46:22,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-07-21 08:46:22,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-07-21 08:46:22,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 3942 transitions. [2022-07-21 08:46:22,683 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5053846153846154 [2022-07-21 08:46:22,684 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 3942 transitions. [2022-07-21 08:46:22,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 3942 transitions. [2022-07-21 08:46:22,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:46:22,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 3942 transitions. [2022-07-21 08:46:22,688 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) [2022-07-21 08:46:22,692 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) [2022-07-21 08:46:22,692 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) [2022-07-21 08:46:22,693 INFO L186 Difference]: Start difference. First operand has 412 places, 449 transitions, 4934 flow. Second operand 40 states and 3942 transitions. [2022-07-21 08:46:22,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1023 transitions, 13659 flow [2022-07-21 08:46:23,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 1023 transitions, 13302 flow, removed 91 selfloop flow, removed 12 redundant places. [2022-07-21 08:46:23,923 INFO L242 Difference]: Finished difference. Result has 455 places, 672 transitions, 9639 flow [2022-07-21 08:46:23,924 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} [2022-07-21 08:46:23,924 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 274 predicate places. [2022-07-21 08:46:23,924 INFO L495 AbstractCegarLoop]: Abstraction has has 455 places, 672 transitions, 9639 flow [2022-07-21 08:46:23,924 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) [2022-07-21 08:46:23,924 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:46:23,924 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] [2022-07-21 08:46:23,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 08:46:23,925 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)] === [2022-07-21 08:46:23,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:46:23,925 INFO L85 PathProgramCache]: Analyzing trace with hash -299335042, now seen corresponding path program 15 times [2022-07-21 08:46:23,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:46:23,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675333914] [2022-07-21 08:46:23,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:46:23,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:46:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:46:24,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:46:24,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:46:24,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675333914] [2022-07-21 08:46:24,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675333914] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:46:24,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:46:24,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-21 08:46:24,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475325104] [2022-07-21 08:46:24,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:46:24,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 08:46:24,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:46:24,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 08:46:24,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-07-21 08:46:24,294 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-21 08:46:24,295 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) [2022-07-21 08:46:24,295 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:46:24,295 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-21 08:46:24,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:46:28,380 INFO L129 PetriNetUnfolder]: 3952/12607 cut-off events. [2022-07-21 08:46:28,381 INFO L130 PetriNetUnfolder]: For 105706/106809 co-relation queries the response was YES. [2022-07-21 08:46:28,516 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. [2022-07-21 08:46:28,555 INFO L132 encePairwiseOnDemand]: 167/195 looper letters, 433 selfloop transitions, 233 changer transitions 0/972 dead transitions. [2022-07-21 08:46:28,556 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 972 transitions, 14814 flow [2022-07-21 08:46:28,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-21 08:46:28,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-21 08:46:28,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2284 transitions. [2022-07-21 08:46:28,561 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5324009324009324 [2022-07-21 08:46:28,561 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2284 transitions. [2022-07-21 08:46:28,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2284 transitions. [2022-07-21 08:46:28,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:46:28,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2284 transitions. [2022-07-21 08:46:28,563 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) [2022-07-21 08:46:28,566 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) [2022-07-21 08:46:28,566 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) [2022-07-21 08:46:28,566 INFO L186 Difference]: Start difference. First operand has 455 places, 672 transitions, 9639 flow. Second operand 22 states and 2284 transitions. [2022-07-21 08:46:28,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 972 transitions, 14814 flow [2022-07-21 08:46:29,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 972 transitions, 14428 flow, removed 37 selfloop flow, removed 11 redundant places. [2022-07-21 08:46:29,443 INFO L242 Difference]: Finished difference. Result has 473 places, 759 transitions, 11562 flow [2022-07-21 08:46:29,444 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} [2022-07-21 08:46:29,445 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 292 predicate places. [2022-07-21 08:46:29,445 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 759 transitions, 11562 flow [2022-07-21 08:46:29,445 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) [2022-07-21 08:46:29,445 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:46:29,445 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] [2022-07-21 08:46:29,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-21 08:46:29,446 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)] === [2022-07-21 08:46:29,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:46:29,446 INFO L85 PathProgramCache]: Analyzing trace with hash -409980462, now seen corresponding path program 16 times [2022-07-21 08:46:29,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:46:29,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920682892] [2022-07-21 08:46:29,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:46:29,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:46:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:46:29,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:46:29,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:46:29,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920682892] [2022-07-21 08:46:29,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920682892] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:46:29,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:46:29,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-21 08:46:29,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036246276] [2022-07-21 08:46:29,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:46:29,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 08:46:29,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:46:29,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 08:46:29,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-07-21 08:46:29,887 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 195 [2022-07-21 08:46:29,888 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) [2022-07-21 08:46:29,888 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:46:29,888 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 195 [2022-07-21 08:46:29,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:46:37,220 INFO L129 PetriNetUnfolder]: 5329/20396 cut-off events. [2022-07-21 08:46:37,221 INFO L130 PetriNetUnfolder]: For 186928/187517 co-relation queries the response was YES. [2022-07-21 08:46:37,445 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. [2022-07-21 08:46:37,499 INFO L132 encePairwiseOnDemand]: 175/195 looper letters, 677 selfloop transitions, 139 changer transitions 0/1116 dead transitions. [2022-07-21 08:46:37,500 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 1116 transitions, 18127 flow [2022-07-21 08:46:37,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-21 08:46:37,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-21 08:46:37,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3090 transitions. [2022-07-21 08:46:37,502 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7202797202797203 [2022-07-21 08:46:37,502 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3090 transitions. [2022-07-21 08:46:37,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3090 transitions. [2022-07-21 08:46:37,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:46:37,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3090 transitions. [2022-07-21 08:46:37,505 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) [2022-07-21 08:46:37,507 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) [2022-07-21 08:46:37,508 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) [2022-07-21 08:46:37,508 INFO L186 Difference]: Start difference. First operand has 473 places, 759 transitions, 11562 flow. Second operand 22 states and 3090 transitions. [2022-07-21 08:46:37,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 1116 transitions, 18127 flow [2022-07-21 08:46:39,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 1116 transitions, 17887 flow, removed 65 selfloop flow, removed 10 redundant places. [2022-07-21 08:46:39,908 INFO L242 Difference]: Finished difference. Result has 491 places, 813 transitions, 12673 flow [2022-07-21 08:46:39,908 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} [2022-07-21 08:46:39,909 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 310 predicate places. [2022-07-21 08:46:39,909 INFO L495 AbstractCegarLoop]: Abstraction has has 491 places, 813 transitions, 12673 flow [2022-07-21 08:46:39,909 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) [2022-07-21 08:46:39,909 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:46:39,909 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] [2022-07-21 08:46:39,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-21 08:46:39,909 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)] === [2022-07-21 08:46:39,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:46:39,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1733583368, now seen corresponding path program 17 times [2022-07-21 08:46:39,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:46:39,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070060892] [2022-07-21 08:46:39,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:46:39,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:46:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:46:40,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:46:40,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:46:40,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070060892] [2022-07-21 08:46:40,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070060892] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:46:40,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:46:40,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-21 08:46:40,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241370149] [2022-07-21 08:46:40,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:46:40,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-21 08:46:40,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:46:40,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-21 08:46:40,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-07-21 08:46:40,297 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-07-21 08:46:40,299 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) [2022-07-21 08:46:40,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:46:40,299 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-07-21 08:46:40,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:46:47,025 INFO L129 PetriNetUnfolder]: 4970/19581 cut-off events. [2022-07-21 08:46:47,025 INFO L130 PetriNetUnfolder]: For 174906/175563 co-relation queries the response was YES. [2022-07-21 08:46:47,274 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. [2022-07-21 08:46:47,335 INFO L132 encePairwiseOnDemand]: 177/195 looper letters, 578 selfloop transitions, 94 changer transitions 0/1060 dead transitions. [2022-07-21 08:46:47,336 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 1060 transitions, 17023 flow [2022-07-21 08:46:47,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 08:46:47,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-07-21 08:46:47,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2535 transitions. [2022-07-21 08:46:47,338 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7647058823529411 [2022-07-21 08:46:47,338 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2535 transitions. [2022-07-21 08:46:47,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2535 transitions. [2022-07-21 08:46:47,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:46:47,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2535 transitions. [2022-07-21 08:46:47,341 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) [2022-07-21 08:46:47,343 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) [2022-07-21 08:46:47,343 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) [2022-07-21 08:46:47,343 INFO L186 Difference]: Start difference. First operand has 491 places, 813 transitions, 12673 flow. Second operand 17 states and 2535 transitions. [2022-07-21 08:46:47,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 1060 transitions, 17023 flow [2022-07-21 08:46:49,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 1060 transitions, 16813 flow, removed 69 selfloop flow, removed 9 redundant places. [2022-07-21 08:46:49,593 INFO L242 Difference]: Finished difference. Result has 503 places, 834 transitions, 13086 flow [2022-07-21 08:46:49,593 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} [2022-07-21 08:46:49,594 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 322 predicate places. [2022-07-21 08:46:49,594 INFO L495 AbstractCegarLoop]: Abstraction has has 503 places, 834 transitions, 13086 flow [2022-07-21 08:46:49,594 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) [2022-07-21 08:46:49,594 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:46:49,594 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] [2022-07-21 08:46:49,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-21 08:46:49,595 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)] === [2022-07-21 08:46:49,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:46:49,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1801798540, now seen corresponding path program 18 times [2022-07-21 08:46:49,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:46:49,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560047669] [2022-07-21 08:46:49,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:46:49,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:46:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:46:50,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:46:50,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:46:50,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560047669] [2022-07-21 08:46:50,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560047669] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:46:50,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:46:50,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-07-21 08:46:50,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462879425] [2022-07-21 08:46:50,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:46:50,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-21 08:46:50,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:46:50,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-21 08:46:50,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-07-21 08:46:50,106 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-07-21 08:46:50,107 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) [2022-07-21 08:46:50,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:46:50,107 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-07-21 08:46:50,107 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand