./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 791161d1 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-?-791161d [2022-07-22 21:27:44,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 21:27:44,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 21:27:44,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 21:27:44,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 21:27:44,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 21:27:44,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 21:27:44,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 21:27:44,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 21:27:44,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 21:27:44,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 21:27:44,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 21:27:44,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 21:27:44,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 21:27:44,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 21:27:44,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 21:27:44,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 21:27:44,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 21:27:44,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 21:27:44,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 21:27:44,149 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 21:27:44,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 21:27:44,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 21:27:44,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 21:27:44,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 21:27:44,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 21:27:44,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 21:27:44,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 21:27:44,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 21:27:44,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 21:27:44,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 21:27:44,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 21:27:44,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 21:27:44,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 21:27:44,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 21:27:44,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 21:27:44,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 21:27:44,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 21:27:44,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 21:27:44,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 21:27:44,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 21:27:44,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 21:27:44,167 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 21:27:44,193 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 21:27:44,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 21:27:44,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 21:27:44,194 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 21:27:44,194 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 21:27:44,195 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 21:27:44,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 21:27:44,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 21:27:44,195 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 21:27:44,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 21:27:44,196 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 21:27:44,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 21:27:44,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 21:27:44,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 21:27:44,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 21:27:44,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 21:27:44,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 21:27:44,197 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 21:27:44,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 21:27:44,198 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 21:27:44,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 21:27:44,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 21:27:44,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 21:27:44,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 21:27:44,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:27:44,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 21:27:44,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 21:27:44,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 21:27:44,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 21:27:44,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 21:27:44,200 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 21:27:44,201 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 21:27:44,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 21:27:44,201 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db [2022-07-22 21:27:44,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 21:27:44,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 21:27:44,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 21:27:44,423 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 21:27:44,427 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 21:27:44,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-07-22 21:27:44,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f0aaaa81/c18c4d3a6f4945f8bd2cfdf9ac3f1898/FLAG1a4d09b1e [2022-07-22 21:27:44,974 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 21:27:44,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-07-22 21:27:44,994 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f0aaaa81/c18c4d3a6f4945f8bd2cfdf9ac3f1898/FLAG1a4d09b1e [2022-07-22 21:27:45,502 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f0aaaa81/c18c4d3a6f4945f8bd2cfdf9ac3f1898 [2022-07-22 21:27:45,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 21:27:45,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 21:27:45,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 21:27:45,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 21:27:45,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 21:27:45,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:27:45" (1/1) ... [2022-07-22 21:27:45,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66cb61f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:45, skipping insertion in model container [2022-07-22 21:27:45,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:27:45" (1/1) ... [2022-07-22 21:27:45,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 21:27:45,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 21:27:46,094 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] [2022-07-22 21:27:46,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:27:46,141 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 21:27:46,176 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] [2022-07-22 21:27:46,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:27:46,265 INFO L208 MainTranslator]: Completed translation [2022-07-22 21:27:46,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:46 WrapperNode [2022-07-22 21:27:46,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 21:27:46,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 21:27:46,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 21:27:46,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 21:27:46,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:46" (1/1) ... [2022-07-22 21:27:46,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:46" (1/1) ... [2022-07-22 21:27:46,320 INFO L137 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 133 [2022-07-22 21:27:46,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 21:27:46,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 21:27:46,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 21:27:46,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 21:27:46,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:46" (1/1) ... [2022-07-22 21:27:46,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:46" (1/1) ... [2022-07-22 21:27:46,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:46" (1/1) ... [2022-07-22 21:27:46,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:46" (1/1) ... [2022-07-22 21:27:46,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:46" (1/1) ... [2022-07-22 21:27:46,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:46" (1/1) ... [2022-07-22 21:27:46,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:46" (1/1) ... [2022-07-22 21:27:46,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 21:27:46,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 21:27:46,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 21:27:46,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 21:27:46,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:46" (1/1) ... [2022-07-22 21:27:46,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:27:46,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 21:27:46,398 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) [2022-07-22 21:27:46,420 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 [2022-07-22 21:27:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 21:27:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 21:27:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-22 21:27:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 21:27:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 21:27:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 21:27:46,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 21:27:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-07-22 21:27:46,448 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-07-22 21:27:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 21:27:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 21:27:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 21:27:46,449 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-22 21:27:46,700 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 21:27:46,702 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 21:27:46,916 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 21:27:46,926 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 21:27:46,926 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 21:27:46,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:27:46 BoogieIcfgContainer [2022-07-22 21:27:46,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 21:27:46,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 21:27:46,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 21:27:46,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 21:27:46,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 09:27:45" (1/3) ... [2022-07-22 21:27:46,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b4eb6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:27:46, skipping insertion in model container [2022-07-22 21:27:46,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:27:46" (2/3) ... [2022-07-22 21:27:46,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b4eb6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:27:46, skipping insertion in model container [2022-07-22 21:27:46,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:27:46" (3/3) ... [2022-07-22 21:27:46,935 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2022-07-22 21:27:46,939 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-22 21:27:46,946 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 21:27:46,946 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-22 21:27:46,947 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-22 21:27:47,006 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-22 21:27:47,044 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 193 places, 195 transitions, 406 flow [2022-07-22 21:27:47,098 INFO L129 PetriNetUnfolder]: 10/240 cut-off events. [2022-07-22 21:27:47,098 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-22 21:27:47,102 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. [2022-07-22 21:27:47,102 INFO L82 GeneralOperation]: Start removeDead. Operand has 193 places, 195 transitions, 406 flow [2022-07-22 21:27:47,106 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 181 transitions, 374 flow [2022-07-22 21:27:47,111 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 21:27:47,115 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@6d55135d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1c96aad5 [2022-07-22 21:27:47,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-07-22 21:27:47,121 INFO L129 PetriNetUnfolder]: 0/45 cut-off events. [2022-07-22 21:27:47,121 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 21:27:47,121 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:27:47,122 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:27:47,122 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)] === [2022-07-22 21:27:47,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:27:47,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1888391755, now seen corresponding path program 1 times [2022-07-22 21:27:47,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:27:47,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154548740] [2022-07-22 21:27:47,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:27:47,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:27:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:27:47,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:27:47,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:27:47,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154548740] [2022-07-22 21:27:47,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154548740] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:27:47,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:27:47,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 21:27:47,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250192023] [2022-07-22 21:27:47,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:27:47,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 21:27:47,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:27:47,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 21:27:47,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 21:27:47,414 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 195 [2022-07-22 21:27:47,417 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) [2022-07-22 21:27:47,417 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:27:47,418 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 195 [2022-07-22 21:27:47,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:27:47,658 INFO L129 PetriNetUnfolder]: 361/1046 cut-off events. [2022-07-22 21:27:47,658 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-07-22 21:27:47,663 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. [2022-07-22 21:27:47,669 INFO L132 encePairwiseOnDemand]: 173/195 looper letters, 53 selfloop transitions, 17 changer transitions 1/177 dead transitions. [2022-07-22 21:27:47,669 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 177 transitions, 508 flow [2022-07-22 21:27:47,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 21:27:47,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-22 21:27:47,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1138 transitions. [2022-07-22 21:27:47,686 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6484330484330484 [2022-07-22 21:27:47,686 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1138 transitions. [2022-07-22 21:27:47,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1138 transitions. [2022-07-22 21:27:47,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:27:47,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1138 transitions. [2022-07-22 21:27:47,695 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) [2022-07-22 21:27:47,701 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) [2022-07-22 21:27:47,702 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) [2022-07-22 21:27:47,703 INFO L186 Difference]: Start difference. First operand has 181 places, 181 transitions, 374 flow. Second operand 9 states and 1138 transitions. [2022-07-22 21:27:47,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 177 transitions, 508 flow [2022-07-22 21:27:47,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 177 transitions, 500 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-22 21:27:47,709 INFO L242 Difference]: Finished difference. Result has 179 places, 170 transitions, 385 flow [2022-07-22 21:27:47,711 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} [2022-07-22 21:27:47,713 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, -2 predicate places. [2022-07-22 21:27:47,714 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 170 transitions, 385 flow [2022-07-22 21:27:47,714 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) [2022-07-22 21:27:47,714 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:27:47,714 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] [2022-07-22 21:27:47,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 21:27:47,715 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)] === [2022-07-22 21:27:47,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:27:47,715 INFO L85 PathProgramCache]: Analyzing trace with hash -57843741, now seen corresponding path program 1 times [2022-07-22 21:27:47,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:27:47,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69898188] [2022-07-22 21:27:47,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:27:47,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:27:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:27:47,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:27:47,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:27:47,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69898188] [2022-07-22 21:27:47,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69898188] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:27:47,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:27:47,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 21:27:47,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309760004] [2022-07-22 21:27:47,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:27:47,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 21:27:47,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:27:47,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 21:27:47,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 21:27:47,806 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 195 [2022-07-22 21:27:47,807 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) [2022-07-22 21:27:47,807 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:27:47,807 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 195 [2022-07-22 21:27:47,808 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:27:48,008 INFO L129 PetriNetUnfolder]: 361/1016 cut-off events. [2022-07-22 21:27:48,008 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-07-22 21:27:48,010 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. [2022-07-22 21:27:48,014 INFO L132 encePairwiseOnDemand]: 176/195 looper letters, 61 selfloop transitions, 18 changer transitions 1/185 dead transitions. [2022-07-22 21:27:48,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 185 transitions, 577 flow [2022-07-22 21:27:48,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 21:27:48,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-22 21:27:48,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1261 transitions. [2022-07-22 21:27:48,017 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6466666666666666 [2022-07-22 21:27:48,017 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1261 transitions. [2022-07-22 21:27:48,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1261 transitions. [2022-07-22 21:27:48,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:27:48,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1261 transitions. [2022-07-22 21:27:48,020 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) [2022-07-22 21:27:48,023 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) [2022-07-22 21:27:48,024 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) [2022-07-22 21:27:48,024 INFO L186 Difference]: Start difference. First operand has 179 places, 170 transitions, 385 flow. Second operand 10 states and 1261 transitions. [2022-07-22 21:27:48,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 185 transitions, 577 flow [2022-07-22 21:27:48,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 185 transitions, 548 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-07-22 21:27:48,028 INFO L242 Difference]: Finished difference. Result has 180 places, 169 transitions, 396 flow [2022-07-22 21:27:48,029 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} [2022-07-22 21:27:48,029 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, -1 predicate places. [2022-07-22 21:27:48,029 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 169 transitions, 396 flow [2022-07-22 21:27:48,030 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) [2022-07-22 21:27:48,030 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:27:48,030 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] [2022-07-22 21:27:48,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 21:27:48,030 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)] === [2022-07-22 21:27:48,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:27:48,031 INFO L85 PathProgramCache]: Analyzing trace with hash 5829728, now seen corresponding path program 1 times [2022-07-22 21:27:48,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:27:48,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718415519] [2022-07-22 21:27:48,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:27:48,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:27:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:27:48,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:27:48,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:27:48,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718415519] [2022-07-22 21:27:48,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718415519] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:27:48,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:27:48,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 21:27:48,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709458921] [2022-07-22 21:27:48,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:27:48,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 21:27:48,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:27:48,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 21:27:48,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 21:27:48,118 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 195 [2022-07-22 21:27:48,119 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) [2022-07-22 21:27:48,119 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:27:48,119 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 195 [2022-07-22 21:27:48,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:27:48,494 INFO L129 PetriNetUnfolder]: 832/2098 cut-off events. [2022-07-22 21:27:48,494 INFO L130 PetriNetUnfolder]: For 131/131 co-relation queries the response was YES. [2022-07-22 21:27:48,498 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. [2022-07-22 21:27:48,504 INFO L132 encePairwiseOnDemand]: 174/195 looper letters, 100 selfloop transitions, 49 changer transitions 0/254 dead transitions. [2022-07-22 21:27:48,504 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 254 transitions, 880 flow [2022-07-22 21:27:48,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 21:27:48,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-22 21:27:48,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1657 transitions. [2022-07-22 21:27:48,508 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6536489151873768 [2022-07-22 21:27:48,508 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1657 transitions. [2022-07-22 21:27:48,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1657 transitions. [2022-07-22 21:27:48,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:27:48,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1657 transitions. [2022-07-22 21:27:48,512 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) [2022-07-22 21:27:48,515 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) [2022-07-22 21:27:48,515 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) [2022-07-22 21:27:48,515 INFO L186 Difference]: Start difference. First operand has 180 places, 169 transitions, 396 flow. Second operand 13 states and 1657 transitions. [2022-07-22 21:27:48,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 254 transitions, 880 flow [2022-07-22 21:27:48,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 254 transitions, 834 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-07-22 21:27:48,521 INFO L242 Difference]: Finished difference. Result has 192 places, 206 transitions, 666 flow [2022-07-22 21:27:48,521 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} [2022-07-22 21:27:48,522 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 11 predicate places. [2022-07-22 21:27:48,522 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 206 transitions, 666 flow [2022-07-22 21:27:48,522 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) [2022-07-22 21:27:48,522 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:27:48,523 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] [2022-07-22 21:27:48,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 21:27:48,523 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)] === [2022-07-22 21:27:48,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:27:48,524 INFO L85 PathProgramCache]: Analyzing trace with hash -2139572029, now seen corresponding path program 1 times [2022-07-22 21:27:48,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:27:48,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510411827] [2022-07-22 21:27:48,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:27:48,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:27:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:27:48,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:27:48,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:27:48,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510411827] [2022-07-22 21:27:48,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510411827] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:27:48,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:27:48,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 21:27:48,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199429892] [2022-07-22 21:27:48,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:27:48,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 21:27:48,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:27:48,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 21:27:48,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 21:27:48,602 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 195 [2022-07-22 21:27:48,603 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) [2022-07-22 21:27:48,603 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:27:48,603 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 195 [2022-07-22 21:27:48,603 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:27:49,011 INFO L129 PetriNetUnfolder]: 1084/2667 cut-off events. [2022-07-22 21:27:49,011 INFO L130 PetriNetUnfolder]: For 10874/10936 co-relation queries the response was YES. [2022-07-22 21:27:49,017 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. [2022-07-22 21:27:49,029 INFO L132 encePairwiseOnDemand]: 176/195 looper letters, 74 selfloop transitions, 48 changer transitions 69/295 dead transitions. [2022-07-22 21:27:49,029 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 295 transitions, 1750 flow [2022-07-22 21:27:49,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 21:27:49,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-07-22 21:27:49,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1406 transitions. [2022-07-22 21:27:49,033 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6554778554778555 [2022-07-22 21:27:49,033 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1406 transitions. [2022-07-22 21:27:49,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1406 transitions. [2022-07-22 21:27:49,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:27:49,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1406 transitions. [2022-07-22 21:27:49,036 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) [2022-07-22 21:27:49,039 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) [2022-07-22 21:27:49,039 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) [2022-07-22 21:27:49,039 INFO L186 Difference]: Start difference. First operand has 192 places, 206 transitions, 666 flow. Second operand 11 states and 1406 transitions. [2022-07-22 21:27:49,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 295 transitions, 1750 flow [2022-07-22 21:27:49,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 295 transitions, 1750 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-07-22 21:27:49,053 INFO L242 Difference]: Finished difference. Result has 210 places, 212 transitions, 979 flow [2022-07-22 21:27:49,053 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} [2022-07-22 21:27:49,054 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 29 predicate places. [2022-07-22 21:27:49,054 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 212 transitions, 979 flow [2022-07-22 21:27:49,055 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) [2022-07-22 21:27:49,055 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:27:49,055 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] [2022-07-22 21:27:49,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 21:27:49,055 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)] === [2022-07-22 21:27:49,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:27:49,056 INFO L85 PathProgramCache]: Analyzing trace with hash -902131826, now seen corresponding path program 1 times [2022-07-22 21:27:49,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:27:49,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158816388] [2022-07-22 21:27:49,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:27:49,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:27:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:27:49,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:27:49,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:27:49,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158816388] [2022-07-22 21:27:49,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158816388] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:27:49,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:27:49,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 21:27:49,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355038976] [2022-07-22 21:27:49,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:27:49,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 21:27:49,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:27:49,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 21:27:49,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 21:27:49,128 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 195 [2022-07-22 21:27:49,129 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) [2022-07-22 21:27:49,129 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:27:49,129 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 195 [2022-07-22 21:27:49,129 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:27:49,168 INFO L129 PetriNetUnfolder]: 4/168 cut-off events. [2022-07-22 21:27:49,168 INFO L130 PetriNetUnfolder]: For 459/531 co-relation queries the response was YES. [2022-07-22 21:27:49,168 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. [2022-07-22 21:27:49,169 INFO L132 encePairwiseOnDemand]: 190/195 looper letters, 9 selfloop transitions, 4 changer transitions 0/140 dead transitions. [2022-07-22 21:27:49,169 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 140 transitions, 438 flow [2022-07-22 21:27:49,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 21:27:49,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-07-22 21:27:49,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1022 transitions. [2022-07-22 21:27:49,171 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8735042735042735 [2022-07-22 21:27:49,172 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1022 transitions. [2022-07-22 21:27:49,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1022 transitions. [2022-07-22 21:27:49,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:27:49,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1022 transitions. [2022-07-22 21:27:49,174 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) [2022-07-22 21:27:49,175 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) [2022-07-22 21:27:49,176 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) [2022-07-22 21:27:49,176 INFO L186 Difference]: Start difference. First operand has 210 places, 212 transitions, 979 flow. Second operand 6 states and 1022 transitions. [2022-07-22 21:27:49,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 140 transitions, 438 flow [2022-07-22 21:27:49,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 140 transitions, 318 flow, removed 40 selfloop flow, removed 19 redundant places. [2022-07-22 21:27:49,179 INFO L242 Difference]: Finished difference. Result has 153 places, 140 transitions, 300 flow [2022-07-22 21:27:49,179 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} [2022-07-22 21:27:49,180 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, -28 predicate places. [2022-07-22 21:27:49,180 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 140 transitions, 300 flow [2022-07-22 21:27:49,181 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) [2022-07-22 21:27:49,181 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:27:49,181 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] [2022-07-22 21:27:49,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 21:27:49,181 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)] === [2022-07-22 21:27:49,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:27:49,182 INFO L85 PathProgramCache]: Analyzing trace with hash -971686872, now seen corresponding path program 1 times [2022-07-22 21:27:49,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:27:49,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029053417] [2022-07-22 21:27:49,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:27:49,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:27:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:27:49,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:27:49,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:27:49,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029053417] [2022-07-22 21:27:49,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029053417] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:27:49,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:27:49,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-07-22 21:27:49,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985436382] [2022-07-22 21:27:49,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:27:49,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-22 21:27:49,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:27:49,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-22 21:27:49,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-07-22 21:27:49,847 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-07-22 21:27:49,849 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) [2022-07-22 21:27:49,849 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:27:49,849 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-07-22 21:27:49,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:27:51,435 INFO L129 PetriNetUnfolder]: 698/1674 cut-off events. [2022-07-22 21:27:51,436 INFO L130 PetriNetUnfolder]: For 148/148 co-relation queries the response was YES. [2022-07-22 21:27:51,440 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. [2022-07-22 21:27:51,447 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 154 selfloop transitions, 29 changer transitions 0/257 dead transitions. [2022-07-22 21:27:51,447 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 257 transitions, 949 flow [2022-07-22 21:27:51,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-22 21:27:51,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-07-22 21:27:51,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2461 transitions. [2022-07-22 21:27:51,452 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5487179487179488 [2022-07-22 21:27:51,452 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2461 transitions. [2022-07-22 21:27:51,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2461 transitions. [2022-07-22 21:27:51,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:27:51,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2461 transitions. [2022-07-22 21:27:51,487 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) [2022-07-22 21:27:51,492 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) [2022-07-22 21:27:51,493 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) [2022-07-22 21:27:51,494 INFO L186 Difference]: Start difference. First operand has 153 places, 140 transitions, 300 flow. Second operand 23 states and 2461 transitions. [2022-07-22 21:27:51,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 257 transitions, 949 flow [2022-07-22 21:27:51,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 257 transitions, 942 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-22 21:27:51,498 INFO L242 Difference]: Finished difference. Result has 176 places, 150 transitions, 400 flow [2022-07-22 21:27:51,499 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} [2022-07-22 21:27:51,499 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, -5 predicate places. [2022-07-22 21:27:51,499 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 150 transitions, 400 flow [2022-07-22 21:27:51,500 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) [2022-07-22 21:27:51,500 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:27:51,501 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] [2022-07-22 21:27:51,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 21:27:51,501 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)] === [2022-07-22 21:27:51,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:27:51,502 INFO L85 PathProgramCache]: Analyzing trace with hash 934474332, now seen corresponding path program 2 times [2022-07-22 21:27:51,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:27:51,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444304496] [2022-07-22 21:27:51,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:27:51,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:27:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:27:51,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:27:51,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:27:51,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444304496] [2022-07-22 21:27:51,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444304496] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:27:51,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:27:51,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-22 21:27:51,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003252723] [2022-07-22 21:27:51,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:27:51,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-22 21:27:51,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:27:51,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-22 21:27:51,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-07-22 21:27:51,921 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-22 21:27:51,922 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) [2022-07-22 21:27:51,922 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:27:51,922 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-22 21:27:51,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:27:52,586 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]) [2022-07-22 21:27:52,586 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-07-22 21:27:52,587 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-22 21:27:52,587 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-22 21:27:52,587 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-07-22 21:27:52,598 INFO L382 tUnfolder$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]) [2022-07-22 21:27:52,599 INFO L384 tUnfolder$Statistics]: this new event has 103 ancestors and is cut-off event [2022-07-22 21:27:52,599 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-22 21:27:52,599 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-22 21:27:52,599 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-07-22 21:27:52,921 INFO L129 PetriNetUnfolder]: 749/1961 cut-off events. [2022-07-22 21:27:52,922 INFO L130 PetriNetUnfolder]: For 575/575 co-relation queries the response was YES. [2022-07-22 21:27:52,928 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. [2022-07-22 21:27:52,948 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 155 selfloop transitions, 32 changer transitions 0/264 dead transitions. [2022-07-22 21:27:52,948 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 264 transitions, 1104 flow [2022-07-22 21:27:52,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-22 21:27:52,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-22 21:27:52,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2284 transitions. [2022-07-22 21:27:52,954 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5324009324009324 [2022-07-22 21:27:52,954 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2284 transitions. [2022-07-22 21:27:52,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2284 transitions. [2022-07-22 21:27:52,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:27:52,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2284 transitions. [2022-07-22 21:27:52,974 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) [2022-07-22 21:27:52,980 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) [2022-07-22 21:27:52,980 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) [2022-07-22 21:27:52,981 INFO L186 Difference]: Start difference. First operand has 176 places, 150 transitions, 400 flow. Second operand 22 states and 2284 transitions. [2022-07-22 21:27:52,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 264 transitions, 1104 flow [2022-07-22 21:27:52,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 264 transitions, 1061 flow, removed 0 selfloop flow, removed 16 redundant places. [2022-07-22 21:27:52,987 INFO L242 Difference]: Finished difference. Result has 192 places, 171 transitions, 542 flow [2022-07-22 21:27:52,998 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} [2022-07-22 21:27:52,999 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 11 predicate places. [2022-07-22 21:27:53,000 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 171 transitions, 542 flow [2022-07-22 21:27:53,000 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) [2022-07-22 21:27:53,000 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:27:53,001 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] [2022-07-22 21:27:53,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 21:27:53,001 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)] === [2022-07-22 21:27:53,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:27:53,001 INFO L85 PathProgramCache]: Analyzing trace with hash -424530496, now seen corresponding path program 3 times [2022-07-22 21:27:53,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:27:53,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373477228] [2022-07-22 21:27:53,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:27:53,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:27:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:27:53,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:27:53,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:27:53,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373477228] [2022-07-22 21:27:53,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373477228] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:27:53,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:27:53,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-22 21:27:53,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752684673] [2022-07-22 21:27:53,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:27:53,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-22 21:27:53,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:27:53,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-22 21:27:53,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-07-22 21:27:53,653 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 195 [2022-07-22 21:27:53,655 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) [2022-07-22 21:27:53,655 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:27:53,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 195 [2022-07-22 21:27:53,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:27:55,239 INFO L129 PetriNetUnfolder]: 1035/2621 cut-off events. [2022-07-22 21:27:55,239 INFO L130 PetriNetUnfolder]: For 2006/2052 co-relation queries the response was YES. [2022-07-22 21:27:55,246 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. [2022-07-22 21:27:55,259 INFO L132 encePairwiseOnDemand]: 175/195 looper letters, 163 selfloop transitions, 33 changer transitions 0/304 dead transitions. [2022-07-22 21:27:55,259 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 304 transitions, 1545 flow [2022-07-22 21:27:55,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-22 21:27:55,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-07-22 21:27:55,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2658 transitions. [2022-07-22 21:27:55,265 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7174089068825911 [2022-07-22 21:27:55,265 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2658 transitions. [2022-07-22 21:27:55,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2658 transitions. [2022-07-22 21:27:55,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:27:55,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2658 transitions. [2022-07-22 21:27:55,271 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) [2022-07-22 21:27:55,286 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) [2022-07-22 21:27:55,287 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) [2022-07-22 21:27:55,288 INFO L186 Difference]: Start difference. First operand has 192 places, 171 transitions, 542 flow. Second operand 19 states and 2658 transitions. [2022-07-22 21:27:55,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 304 transitions, 1545 flow [2022-07-22 21:27:55,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 304 transitions, 1513 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-07-22 21:27:55,296 INFO L242 Difference]: Finished difference. Result has 210 places, 186 transitions, 707 flow [2022-07-22 21:27:55,296 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} [2022-07-22 21:27:55,299 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 29 predicate places. [2022-07-22 21:27:55,299 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 186 transitions, 707 flow [2022-07-22 21:27:55,299 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) [2022-07-22 21:27:55,300 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:27:55,300 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] [2022-07-22 21:27:55,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 21:27:55,300 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)] === [2022-07-22 21:27:55,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:27:55,301 INFO L85 PathProgramCache]: Analyzing trace with hash -97507748, now seen corresponding path program 4 times [2022-07-22 21:27:55,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:27:55,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295843880] [2022-07-22 21:27:55,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:27:55,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:27:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:27:55,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:27:55,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:27:55,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295843880] [2022-07-22 21:27:55,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295843880] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:27:55,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:27:55,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-22 21:27:55,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329525326] [2022-07-22 21:27:55,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:27:55,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-22 21:27:55,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:27:55,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-22 21:27:55,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-07-22 21:27:55,802 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-22 21:27:55,804 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) [2022-07-22 21:27:55,804 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:27:55,804 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-22 21:27:55,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:27:57,026 INFO L129 PetriNetUnfolder]: 1204/3156 cut-off events. [2022-07-22 21:27:57,027 INFO L130 PetriNetUnfolder]: For 2645/2675 co-relation queries the response was YES. [2022-07-22 21:27:57,038 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. [2022-07-22 21:27:57,047 INFO L132 encePairwiseOnDemand]: 167/195 looper letters, 143 selfloop transitions, 50 changer transitions 0/276 dead transitions. [2022-07-22 21:27:57,047 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 276 transitions, 1408 flow [2022-07-22 21:27:57,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-22 21:27:57,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-07-22 21:27:57,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2072 transitions. [2022-07-22 21:27:57,050 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5312820512820513 [2022-07-22 21:27:57,050 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2072 transitions. [2022-07-22 21:27:57,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2072 transitions. [2022-07-22 21:27:57,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:27:57,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2072 transitions. [2022-07-22 21:27:57,055 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) [2022-07-22 21:27:57,104 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) [2022-07-22 21:27:57,105 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) [2022-07-22 21:27:57,105 INFO L186 Difference]: Start difference. First operand has 210 places, 186 transitions, 707 flow. Second operand 20 states and 2072 transitions. [2022-07-22 21:27:57,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 276 transitions, 1408 flow [2022-07-22 21:27:57,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 276 transitions, 1372 flow, removed 5 selfloop flow, removed 10 redundant places. [2022-07-22 21:27:57,121 INFO L242 Difference]: Finished difference. Result has 227 places, 201 transitions, 915 flow [2022-07-22 21:27:57,121 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} [2022-07-22 21:27:57,122 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 46 predicate places. [2022-07-22 21:27:57,122 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 201 transitions, 915 flow [2022-07-22 21:27:57,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 99.21052631578948) internal successors, (1885), 19 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 21:27:57,122 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:27:57,123 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] [2022-07-22 21:27:57,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 21:27:57,123 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)] === [2022-07-22 21:27:57,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:27:57,123 INFO L85 PathProgramCache]: Analyzing trace with hash 184447290, now seen corresponding path program 5 times [2022-07-22 21:27:57,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:27:57,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595720717] [2022-07-22 21:27:57,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:27:57,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:27:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:27:57,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:27:57,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:27:57,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595720717] [2022-07-22 21:27:57,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595720717] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:27:57,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:27:57,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-22 21:27:57,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255667188] [2022-07-22 21:27:57,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:27:57,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-22 21:27:57,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:27:57,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-22 21:27:57,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-07-22 21:27:57,584 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-22 21:27:57,585 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) [2022-07-22 21:27:57,585 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:27:57,585 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-22 21:27:57,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:27:59,032 INFO L129 PetriNetUnfolder]: 1356/3599 cut-off events. [2022-07-22 21:27:59,032 INFO L130 PetriNetUnfolder]: For 6006/6052 co-relation queries the response was YES. [2022-07-22 21:27:59,045 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. [2022-07-22 21:27:59,066 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 188 selfloop transitions, 51 changer transitions 0/322 dead transitions. [2022-07-22 21:27:59,068 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 322 transitions, 2013 flow [2022-07-22 21:27:59,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-22 21:27:59,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-22 21:27:59,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2284 transitions. [2022-07-22 21:27:59,098 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5324009324009324 [2022-07-22 21:27:59,099 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2284 transitions. [2022-07-22 21:27:59,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2284 transitions. [2022-07-22 21:27:59,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:27:59,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2284 transitions. [2022-07-22 21:27:59,104 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) [2022-07-22 21:27:59,108 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) [2022-07-22 21:27:59,109 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) [2022-07-22 21:27:59,109 INFO L186 Difference]: Start difference. First operand has 227 places, 201 transitions, 915 flow. Second operand 22 states and 2284 transitions. [2022-07-22 21:27:59,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 322 transitions, 2013 flow [2022-07-22 21:27:59,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 322 transitions, 1952 flow, removed 6 selfloop flow, removed 9 redundant places. [2022-07-22 21:27:59,158 INFO L242 Difference]: Finished difference. Result has 249 places, 222 transitions, 1208 flow [2022-07-22 21:27:59,159 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} [2022-07-22 21:27:59,160 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 68 predicate places. [2022-07-22 21:27:59,160 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 222 transitions, 1208 flow [2022-07-22 21:27:59,160 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) [2022-07-22 21:27:59,160 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:27:59,161 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] [2022-07-22 21:27:59,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-22 21:27:59,161 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)] === [2022-07-22 21:27:59,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:27:59,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1362620956, now seen corresponding path program 6 times [2022-07-22 21:27:59,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:27:59,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996819357] [2022-07-22 21:27:59,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:27:59,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:27:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:27:59,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:27:59,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:27:59,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996819357] [2022-07-22 21:27:59,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996819357] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:27:59,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:27:59,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-22 21:27:59,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540910789] [2022-07-22 21:27:59,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:27:59,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-22 21:27:59,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:27:59,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-22 21:27:59,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-07-22 21:27:59,646 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-22 21:27:59,647 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) [2022-07-22 21:27:59,647 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:27:59,647 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-22 21:27:59,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:28:00,954 INFO L129 PetriNetUnfolder]: 1364/3699 cut-off events. [2022-07-22 21:28:00,954 INFO L130 PetriNetUnfolder]: For 8340/8364 co-relation queries the response was YES. [2022-07-22 21:28:00,972 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. [2022-07-22 21:28:00,982 INFO L132 encePairwiseOnDemand]: 170/195 looper letters, 181 selfloop transitions, 56 changer transitions 0/320 dead transitions. [2022-07-22 21:28:00,983 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 320 transitions, 2229 flow [2022-07-22 21:28:00,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-22 21:28:00,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-07-22 21:28:00,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2167 transitions. [2022-07-22 21:28:00,985 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5291819291819292 [2022-07-22 21:28:00,985 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2167 transitions. [2022-07-22 21:28:00,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2167 transitions. [2022-07-22 21:28:00,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:28:00,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2167 transitions. [2022-07-22 21:28:00,988 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) [2022-07-22 21:28:00,991 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) [2022-07-22 21:28:00,992 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) [2022-07-22 21:28:00,992 INFO L186 Difference]: Start difference. First operand has 249 places, 222 transitions, 1208 flow. Second operand 21 states and 2167 transitions. [2022-07-22 21:28:00,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 320 transitions, 2229 flow [2022-07-22 21:28:01,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 320 transitions, 2164 flow, removed 17 selfloop flow, removed 7 redundant places. [2022-07-22 21:28:01,022 INFO L242 Difference]: Finished difference. Result has 274 places, 241 transitions, 1528 flow [2022-07-22 21:28:01,022 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} [2022-07-22 21:28:01,023 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 93 predicate places. [2022-07-22 21:28:01,023 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 241 transitions, 1528 flow [2022-07-22 21:28:01,023 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) [2022-07-22 21:28:01,023 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:28:01,024 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 21:28:01,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-22 21:28:01,024 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)] === [2022-07-22 21:28:01,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:28:01,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1009366940, now seen corresponding path program 7 times [2022-07-22 21:28:01,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:28:01,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515142846] [2022-07-22 21:28:01,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:28:01,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:28:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:28:01,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:28:01,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:28:01,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515142846] [2022-07-22 21:28:01,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515142846] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:28:01,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:28:01,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-22 21:28:01,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103689882] [2022-07-22 21:28:01,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:28:01,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-22 21:28:01,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:28:01,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-22 21:28:01,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-07-22 21:28:01,469 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-22 21:28:01,470 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) [2022-07-22 21:28:01,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:28:01,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-22 21:28:01,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:28:02,882 INFO L129 PetriNetUnfolder]: 1482/4117 cut-off events. [2022-07-22 21:28:02,882 INFO L130 PetriNetUnfolder]: For 12017/12091 co-relation queries the response was YES. [2022-07-22 21:28:02,919 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. [2022-07-22 21:28:02,960 INFO L132 encePairwiseOnDemand]: 167/195 looper letters, 183 selfloop transitions, 91 changer transitions 0/357 dead transitions. [2022-07-22 21:28:02,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 357 transitions, 2717 flow [2022-07-22 21:28:02,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-22 21:28:02,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-22 21:28:02,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2292 transitions. [2022-07-22 21:28:02,963 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5342657342657343 [2022-07-22 21:28:02,963 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2292 transitions. [2022-07-22 21:28:02,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2292 transitions. [2022-07-22 21:28:02,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:28:02,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2292 transitions. [2022-07-22 21:28:02,966 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) [2022-07-22 21:28:02,969 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) [2022-07-22 21:28:02,970 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) [2022-07-22 21:28:02,970 INFO L186 Difference]: Start difference. First operand has 274 places, 241 transitions, 1528 flow. Second operand 22 states and 2292 transitions. [2022-07-22 21:28:02,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 357 transitions, 2717 flow [2022-07-22 21:28:03,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 357 transitions, 2643 flow, removed 29 selfloop flow, removed 6 redundant places. [2022-07-22 21:28:03,018 INFO L242 Difference]: Finished difference. Result has 295 places, 260 transitions, 1955 flow [2022-07-22 21:28:03,019 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} [2022-07-22 21:28:03,020 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 114 predicate places. [2022-07-22 21:28:03,020 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 260 transitions, 1955 flow [2022-07-22 21:28:03,020 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) [2022-07-22 21:28:03,020 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:28:03,021 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] [2022-07-22 21:28:03,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 21:28:03,021 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)] === [2022-07-22 21:28:03,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:28:03,021 INFO L85 PathProgramCache]: Analyzing trace with hash -218328318, now seen corresponding path program 8 times [2022-07-22 21:28:03,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:28:03,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91838267] [2022-07-22 21:28:03,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:28:03,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:28:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:28:03,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:28:03,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:28:03,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91838267] [2022-07-22 21:28:03,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91838267] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:28:03,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:28:03,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-07-22 21:28:03,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765248774] [2022-07-22 21:28:03,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:28:03,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-22 21:28:03,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:28:03,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-22 21:28:03,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2022-07-22 21:28:03,545 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 195 [2022-07-22 21:28:03,546 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) [2022-07-22 21:28:03,546 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:28:03,546 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 195 [2022-07-22 21:28:03,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:28:09,991 INFO L129 PetriNetUnfolder]: 3146/7105 cut-off events. [2022-07-22 21:28:09,992 INFO L130 PetriNetUnfolder]: For 27134/27214 co-relation queries the response was YES. [2022-07-22 21:28:10,025 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. [2022-07-22 21:28:10,043 INFO L132 encePairwiseOnDemand]: 165/195 looper letters, 407 selfloop transitions, 183 changer transitions 0/655 dead transitions. [2022-07-22 21:28:10,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 655 transitions, 5975 flow [2022-07-22 21:28:10,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-07-22 21:28:10,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2022-07-22 21:28:10,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 5284 transitions. [2022-07-22 21:28:10,049 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.4926806526806527 [2022-07-22 21:28:10,049 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 5284 transitions. [2022-07-22 21:28:10,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 5284 transitions. [2022-07-22 21:28:10,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:28:10,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 5284 transitions. [2022-07-22 21:28:10,055 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) [2022-07-22 21:28:10,064 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) [2022-07-22 21:28:10,065 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) [2022-07-22 21:28:10,065 INFO L186 Difference]: Start difference. First operand has 295 places, 260 transitions, 1955 flow. Second operand 55 states and 5284 transitions. [2022-07-22 21:28:10,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 655 transitions, 5975 flow [2022-07-22 21:28:10,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 655 transitions, 5718 flow, removed 47 selfloop flow, removed 9 redundant places. [2022-07-22 21:28:10,184 INFO L242 Difference]: Finished difference. Result has 361 places, 373 transitions, 3505 flow [2022-07-22 21:28:10,185 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} [2022-07-22 21:28:10,186 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 180 predicate places. [2022-07-22 21:28:10,186 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 373 transitions, 3505 flow [2022-07-22 21:28:10,187 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) [2022-07-22 21:28:10,187 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:28:10,187 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] [2022-07-22 21:28:10,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-22 21:28:10,187 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)] === [2022-07-22 21:28:10,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:28:10,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1561724186, now seen corresponding path program 9 times [2022-07-22 21:28:10,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:28:10,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598721711] [2022-07-22 21:28:10,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:28:10,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:28:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:28:10,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:28:10,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:28:10,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598721711] [2022-07-22 21:28:10,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598721711] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:28:10,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:28:10,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-07-22 21:28:10,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018677495] [2022-07-22 21:28:10,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:28:10,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-22 21:28:10,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:28:10,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-22 21:28:10,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-07-22 21:28:10,746 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-07-22 21:28:10,748 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) [2022-07-22 21:28:10,748 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:28:10,748 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-07-22 21:28:10,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:28:14,228 INFO L129 PetriNetUnfolder]: 4150/10178 cut-off events. [2022-07-22 21:28:14,228 INFO L130 PetriNetUnfolder]: For 46108/46318 co-relation queries the response was YES. [2022-07-22 21:28:14,291 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. [2022-07-22 21:28:14,317 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 430 selfloop transitions, 85 changer transitions 0/626 dead transitions. [2022-07-22 21:28:14,317 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 626 transitions, 7280 flow [2022-07-22 21:28:14,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-22 21:28:14,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-07-22 21:28:14,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2477 transitions. [2022-07-22 21:28:14,320 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5522853957636567 [2022-07-22 21:28:14,320 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2477 transitions. [2022-07-22 21:28:14,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2477 transitions. [2022-07-22 21:28:14,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:28:14,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2477 transitions. [2022-07-22 21:28:14,324 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) [2022-07-22 21:28:14,327 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) [2022-07-22 21:28:14,328 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) [2022-07-22 21:28:14,328 INFO L186 Difference]: Start difference. First operand has 361 places, 373 transitions, 3505 flow. Second operand 23 states and 2477 transitions. [2022-07-22 21:28:14,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 626 transitions, 7280 flow [2022-07-22 21:28:14,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 626 transitions, 6838 flow, removed 151 selfloop flow, removed 10 redundant places. [2022-07-22 21:28:14,634 INFO L242 Difference]: Finished difference. Result has 379 places, 395 transitions, 3630 flow [2022-07-22 21:28:14,634 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} [2022-07-22 21:28:14,635 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 198 predicate places. [2022-07-22 21:28:14,635 INFO L495 AbstractCegarLoop]: Abstraction has has 379 places, 395 transitions, 3630 flow [2022-07-22 21:28:14,636 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) [2022-07-22 21:28:14,636 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:28:14,636 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] [2022-07-22 21:28:14,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-22 21:28:14,636 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)] === [2022-07-22 21:28:14,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:28:14,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1125317570, now seen corresponding path program 10 times [2022-07-22 21:28:14,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:28:14,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277342220] [2022-07-22 21:28:14,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:28:14,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:28:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:28:15,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:28:15,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:28:15,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277342220] [2022-07-22 21:28:15,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277342220] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:28:15,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:28:15,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-07-22 21:28:15,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623083155] [2022-07-22 21:28:15,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:28:15,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-22 21:28:15,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:28:15,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-22 21:28:15,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-07-22 21:28:15,127 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-07-22 21:28:15,129 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) [2022-07-22 21:28:15,129 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:28:15,129 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-07-22 21:28:15,129 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:28:18,741 INFO L129 PetriNetUnfolder]: 4131/10351 cut-off events. [2022-07-22 21:28:18,741 INFO L130 PetriNetUnfolder]: For 50188/50345 co-relation queries the response was YES. [2022-07-22 21:28:18,819 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. [2022-07-22 21:28:18,926 INFO L132 encePairwiseOnDemand]: 169/195 looper letters, 415 selfloop transitions, 111 changer transitions 0/637 dead transitions. [2022-07-22 21:28:18,926 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 637 transitions, 7179 flow [2022-07-22 21:28:18,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-22 21:28:18,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-07-22 21:28:18,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2487 transitions. [2022-07-22 21:28:18,929 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5545150501672241 [2022-07-22 21:28:18,929 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2487 transitions. [2022-07-22 21:28:18,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2487 transitions. [2022-07-22 21:28:18,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:28:18,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2487 transitions. [2022-07-22 21:28:18,933 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) [2022-07-22 21:28:18,936 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) [2022-07-22 21:28:18,937 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) [2022-07-22 21:28:18,937 INFO L186 Difference]: Start difference. First operand has 379 places, 395 transitions, 3630 flow. Second operand 23 states and 2487 transitions. [2022-07-22 21:28:18,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 637 transitions, 7179 flow [2022-07-22 21:28:19,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 637 transitions, 7015 flow, removed 27 selfloop flow, removed 15 redundant places. [2022-07-22 21:28:19,309 INFO L242 Difference]: Finished difference. Result has 392 places, 413 transitions, 4072 flow [2022-07-22 21:28:19,310 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} [2022-07-22 21:28:19,310 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 211 predicate places. [2022-07-22 21:28:19,310 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 413 transitions, 4072 flow [2022-07-22 21:28:19,311 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) [2022-07-22 21:28:19,311 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:28:19,311 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] [2022-07-22 21:28:19,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-22 21:28:19,311 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)] === [2022-07-22 21:28:19,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:28:19,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1051639876, now seen corresponding path program 11 times [2022-07-22 21:28:19,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:28:19,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900288920] [2022-07-22 21:28:19,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:28:19,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:28:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:28:19,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:28:19,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:28:19,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900288920] [2022-07-22 21:28:19,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900288920] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:28:19,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:28:19,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-22 21:28:19,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378147578] [2022-07-22 21:28:19,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:28:19,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-22 21:28:19,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:28:19,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-22 21:28:19,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-07-22 21:28:19,679 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-07-22 21:28:19,681 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) [2022-07-22 21:28:19,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:28:19,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-07-22 21:28:19,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:28:22,058 INFO L129 PetriNetUnfolder]: 1778/5845 cut-off events. [2022-07-22 21:28:22,058 INFO L130 PetriNetUnfolder]: For 42813/43027 co-relation queries the response was YES. [2022-07-22 21:28:22,185 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. [2022-07-22 21:28:22,200 INFO L132 encePairwiseOnDemand]: 177/195 looper letters, 298 selfloop transitions, 82 changer transitions 0/568 dead transitions. [2022-07-22 21:28:22,200 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 568 transitions, 6684 flow [2022-07-22 21:28:22,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-22 21:28:22,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-07-22 21:28:22,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2526 transitions. [2022-07-22 21:28:22,224 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7619909502262443 [2022-07-22 21:28:22,224 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2526 transitions. [2022-07-22 21:28:22,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2526 transitions. [2022-07-22 21:28:22,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:28:22,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2526 transitions. [2022-07-22 21:28:22,227 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) [2022-07-22 21:28:22,230 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) [2022-07-22 21:28:22,231 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) [2022-07-22 21:28:22,231 INFO L186 Difference]: Start difference. First operand has 392 places, 413 transitions, 4072 flow. Second operand 17 states and 2526 transitions. [2022-07-22 21:28:22,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 568 transitions, 6684 flow [2022-07-22 21:28:22,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 568 transitions, 6400 flow, removed 80 selfloop flow, removed 16 redundant places. [2022-07-22 21:28:22,459 INFO L242 Difference]: Finished difference. Result has 397 places, 430 transitions, 4411 flow [2022-07-22 21:28:22,460 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} [2022-07-22 21:28:22,461 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 216 predicate places. [2022-07-22 21:28:22,461 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 430 transitions, 4411 flow [2022-07-22 21:28:22,461 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) [2022-07-22 21:28:22,462 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:28:22,462 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] [2022-07-22 21:28:22,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-22 21:28:22,462 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)] === [2022-07-22 21:28:22,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:28:22,463 INFO L85 PathProgramCache]: Analyzing trace with hash -382562200, now seen corresponding path program 12 times [2022-07-22 21:28:22,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:28:22,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293773069] [2022-07-22 21:28:22,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:28:22,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:28:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:28:22,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:28:22,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:28:22,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293773069] [2022-07-22 21:28:22,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293773069] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:28:22,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:28:22,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-22 21:28:22,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669730755] [2022-07-22 21:28:22,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:28:22,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-22 21:28:22,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:28:22,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-22 21:28:22,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-07-22 21:28:22,947 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-07-22 21:28:22,949 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) [2022-07-22 21:28:22,949 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:28:22,949 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-07-22 21:28:22,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:28:25,389 INFO L129 PetriNetUnfolder]: 1815/6130 cut-off events. [2022-07-22 21:28:25,390 INFO L130 PetriNetUnfolder]: For 46149/46378 co-relation queries the response was YES. [2022-07-22 21:28:25,440 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. [2022-07-22 21:28:25,458 INFO L132 encePairwiseOnDemand]: 178/195 looper letters, 274 selfloop transitions, 99 changer transitions 0/561 dead transitions. [2022-07-22 21:28:25,458 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 561 transitions, 6552 flow [2022-07-22 21:28:25,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-22 21:28:25,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-07-22 21:28:25,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2519 transitions. [2022-07-22 21:28:25,461 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7598793363499246 [2022-07-22 21:28:25,461 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2519 transitions. [2022-07-22 21:28:25,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2519 transitions. [2022-07-22 21:28:25,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:28:25,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2519 transitions. [2022-07-22 21:28:25,464 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) [2022-07-22 21:28:25,466 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) [2022-07-22 21:28:25,467 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) [2022-07-22 21:28:25,467 INFO L186 Difference]: Start difference. First operand has 397 places, 430 transitions, 4411 flow. Second operand 17 states and 2519 transitions. [2022-07-22 21:28:25,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 561 transitions, 6552 flow [2022-07-22 21:28:25,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 561 transitions, 6374 flow, removed 31 selfloop flow, removed 11 redundant places. [2022-07-22 21:28:25,772 INFO L242 Difference]: Finished difference. Result has 405 places, 438 transitions, 4645 flow [2022-07-22 21:28:25,773 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} [2022-07-22 21:28:25,773 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 224 predicate places. [2022-07-22 21:28:25,773 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 438 transitions, 4645 flow [2022-07-22 21:28:25,774 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) [2022-07-22 21:28:25,774 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:28:25,774 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] [2022-07-22 21:28:25,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-22 21:28:25,774 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)] === [2022-07-22 21:28:25,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:28:25,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1263906712, now seen corresponding path program 13 times [2022-07-22 21:28:25,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:28:25,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495237103] [2022-07-22 21:28:25,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:28:25,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:28:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:28:26,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:28:26,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:28:26,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495237103] [2022-07-22 21:28:26,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495237103] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:28:26,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:28:26,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-22 21:28:26,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675041946] [2022-07-22 21:28:26,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:28:26,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-22 21:28:26,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:28:26,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-22 21:28:26,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-07-22 21:28:26,183 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-07-22 21:28:26,184 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) [2022-07-22 21:28:26,184 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:28:26,184 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-07-22 21:28:26,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:28:28,171 INFO L129 PetriNetUnfolder]: 1575/5298 cut-off events. [2022-07-22 21:28:28,172 INFO L130 PetriNetUnfolder]: For 43572/43783 co-relation queries the response was YES. [2022-07-22 21:28:28,209 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. [2022-07-22 21:28:28,222 INFO L132 encePairwiseOnDemand]: 178/195 looper letters, 282 selfloop transitions, 91 changer transitions 0/561 dead transitions. [2022-07-22 21:28:28,222 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 561 transitions, 6729 flow [2022-07-22 21:28:28,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-22 21:28:28,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-07-22 21:28:28,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2520 transitions. [2022-07-22 21:28:28,229 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7601809954751131 [2022-07-22 21:28:28,229 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2520 transitions. [2022-07-22 21:28:28,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2520 transitions. [2022-07-22 21:28:28,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:28:28,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2520 transitions. [2022-07-22 21:28:28,232 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) [2022-07-22 21:28:28,234 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) [2022-07-22 21:28:28,234 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) [2022-07-22 21:28:28,234 INFO L186 Difference]: Start difference. First operand has 405 places, 438 transitions, 4645 flow. Second operand 17 states and 2520 transitions. [2022-07-22 21:28:28,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 561 transitions, 6729 flow [2022-07-22 21:28:28,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 561 transitions, 6513 flow, removed 25 selfloop flow, removed 13 redundant places. [2022-07-22 21:28:28,484 INFO L242 Difference]: Finished difference. Result has 412 places, 449 transitions, 4934 flow [2022-07-22 21:28:28,484 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} [2022-07-22 21:28:28,485 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 231 predicate places. [2022-07-22 21:28:28,485 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 449 transitions, 4934 flow [2022-07-22 21:28:28,486 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) [2022-07-22 21:28:28,486 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:28:28,486 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] [2022-07-22 21:28:28,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-22 21:28:28,486 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)] === [2022-07-22 21:28:28,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:28:28,487 INFO L85 PathProgramCache]: Analyzing trace with hash -569528590, now seen corresponding path program 14 times [2022-07-22 21:28:28,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:28:28,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813556581] [2022-07-22 21:28:28,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:28:28,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:28:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:28:29,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:28:29,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:28:29,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813556581] [2022-07-22 21:28:29,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813556581] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:28:29,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:28:29,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-07-22 21:28:29,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406398775] [2022-07-22 21:28:29,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:28:29,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-07-22 21:28:29,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:28:29,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-07-22 21:28:29,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2022-07-22 21:28:29,120 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 195 [2022-07-22 21:28:29,121 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) [2022-07-22 21:28:29,121 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:28:29,121 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 195 [2022-07-22 21:28:29,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:28:37,173 INFO L129 PetriNetUnfolder]: 6138/14560 cut-off events. [2022-07-22 21:28:37,174 INFO L130 PetriNetUnfolder]: For 108247/108343 co-relation queries the response was YES. [2022-07-22 21:28:37,352 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. [2022-07-22 21:28:37,395 INFO L132 encePairwiseOnDemand]: 162/195 looper letters, 585 selfloop transitions, 373 changer transitions 0/1023 dead transitions. [2022-07-22 21:28:37,395 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1023 transitions, 13659 flow [2022-07-22 21:28:37,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-07-22 21:28:37,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-07-22 21:28:37,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 3942 transitions. [2022-07-22 21:28:37,399 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5053846153846154 [2022-07-22 21:28:37,399 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 3942 transitions. [2022-07-22 21:28:37,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 3942 transitions. [2022-07-22 21:28:37,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:28:37,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 3942 transitions. [2022-07-22 21:28:37,404 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) [2022-07-22 21:28:37,408 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) [2022-07-22 21:28:37,409 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) [2022-07-22 21:28:37,409 INFO L186 Difference]: Start difference. First operand has 412 places, 449 transitions, 4934 flow. Second operand 40 states and 3942 transitions. [2022-07-22 21:28:37,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1023 transitions, 13659 flow [2022-07-22 21:28:38,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 1023 transitions, 13302 flow, removed 91 selfloop flow, removed 12 redundant places. [2022-07-22 21:28:38,540 INFO L242 Difference]: Finished difference. Result has 455 places, 672 transitions, 9639 flow [2022-07-22 21:28:38,541 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} [2022-07-22 21:28:38,541 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 274 predicate places. [2022-07-22 21:28:38,542 INFO L495 AbstractCegarLoop]: Abstraction has has 455 places, 672 transitions, 9639 flow [2022-07-22 21:28:38,542 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) [2022-07-22 21:28:38,542 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:28:38,542 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] [2022-07-22 21:28:38,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-22 21:28:38,543 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)] === [2022-07-22 21:28:38,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:28:38,543 INFO L85 PathProgramCache]: Analyzing trace with hash -299335042, now seen corresponding path program 15 times [2022-07-22 21:28:38,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:28:38,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440339397] [2022-07-22 21:28:38,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:28:38,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:28:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:28:38,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:28:38,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:28:38,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440339397] [2022-07-22 21:28:38,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440339397] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:28:38,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:28:38,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-22 21:28:38,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726561703] [2022-07-22 21:28:38,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:28:38,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-22 21:28:38,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:28:38,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-22 21:28:38,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-07-22 21:28:38,971 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 195 [2022-07-22 21:28:38,972 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) [2022-07-22 21:28:38,972 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:28:38,972 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 195 [2022-07-22 21:28:38,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:28:43,280 INFO L129 PetriNetUnfolder]: 3952/12607 cut-off events. [2022-07-22 21:28:43,281 INFO L130 PetriNetUnfolder]: For 105706/106809 co-relation queries the response was YES. [2022-07-22 21:28:43,402 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. [2022-07-22 21:28:43,436 INFO L132 encePairwiseOnDemand]: 167/195 looper letters, 433 selfloop transitions, 233 changer transitions 0/972 dead transitions. [2022-07-22 21:28:43,437 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 972 transitions, 14814 flow [2022-07-22 21:28:43,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-22 21:28:43,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-22 21:28:43,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2284 transitions. [2022-07-22 21:28:43,439 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5324009324009324 [2022-07-22 21:28:43,439 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2284 transitions. [2022-07-22 21:28:43,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2284 transitions. [2022-07-22 21:28:43,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:28:43,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2284 transitions. [2022-07-22 21:28:43,442 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) [2022-07-22 21:28:43,447 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) [2022-07-22 21:28:43,447 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) [2022-07-22 21:28:43,448 INFO L186 Difference]: Start difference. First operand has 455 places, 672 transitions, 9639 flow. Second operand 22 states and 2284 transitions. [2022-07-22 21:28:43,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 972 transitions, 14814 flow [2022-07-22 21:28:44,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 972 transitions, 14428 flow, removed 37 selfloop flow, removed 11 redundant places. [2022-07-22 21:28:44,251 INFO L242 Difference]: Finished difference. Result has 473 places, 759 transitions, 11562 flow [2022-07-22 21:28:44,252 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} [2022-07-22 21:28:44,252 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 292 predicate places. [2022-07-22 21:28:44,252 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 759 transitions, 11562 flow [2022-07-22 21:28:44,253 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) [2022-07-22 21:28:44,253 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:28:44,253 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] [2022-07-22 21:28:44,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-22 21:28:44,253 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)] === [2022-07-22 21:28:44,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:28:44,254 INFO L85 PathProgramCache]: Analyzing trace with hash -409980462, now seen corresponding path program 16 times [2022-07-22 21:28:44,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:28:44,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925357394] [2022-07-22 21:28:44,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:28:44,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:28:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:28:44,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:28:44,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:28:44,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925357394] [2022-07-22 21:28:44,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925357394] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:28:44,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:28:44,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-22 21:28:44,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718754900] [2022-07-22 21:28:44,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:28:44,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-22 21:28:44,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:28:44,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-22 21:28:44,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-07-22 21:28:44,669 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 195 [2022-07-22 21:28:44,671 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) [2022-07-22 21:28:44,671 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:28:44,671 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 195 [2022-07-22 21:28:44,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:28:52,373 INFO L129 PetriNetUnfolder]: 5329/20396 cut-off events. [2022-07-22 21:28:52,373 INFO L130 PetriNetUnfolder]: For 186928/187517 co-relation queries the response was YES. [2022-07-22 21:28:52,817 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. [2022-07-22 21:28:52,874 INFO L132 encePairwiseOnDemand]: 175/195 looper letters, 677 selfloop transitions, 139 changer transitions 0/1116 dead transitions. [2022-07-22 21:28:52,875 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 1116 transitions, 18127 flow [2022-07-22 21:28:52,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-22 21:28:52,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-07-22 21:28:52,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3090 transitions. [2022-07-22 21:28:52,877 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7202797202797203 [2022-07-22 21:28:52,877 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3090 transitions. [2022-07-22 21:28:52,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3090 transitions. [2022-07-22 21:28:52,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:28:52,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3090 transitions. [2022-07-22 21:28:52,881 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) [2022-07-22 21:28:52,883 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) [2022-07-22 21:28:52,884 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) [2022-07-22 21:28:52,884 INFO L186 Difference]: Start difference. First operand has 473 places, 759 transitions, 11562 flow. Second operand 22 states and 3090 transitions. [2022-07-22 21:28:52,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 1116 transitions, 18127 flow [2022-07-22 21:28:55,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 1116 transitions, 17887 flow, removed 65 selfloop flow, removed 10 redundant places. [2022-07-22 21:28:55,023 INFO L242 Difference]: Finished difference. Result has 491 places, 813 transitions, 12673 flow [2022-07-22 21:28:55,024 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} [2022-07-22 21:28:55,024 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 310 predicate places. [2022-07-22 21:28:55,024 INFO L495 AbstractCegarLoop]: Abstraction has has 491 places, 813 transitions, 12673 flow [2022-07-22 21:28:55,025 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) [2022-07-22 21:28:55,025 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:28:55,025 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] [2022-07-22 21:28:55,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-22 21:28:55,025 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)] === [2022-07-22 21:28:55,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:28:55,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1733583368, now seen corresponding path program 17 times [2022-07-22 21:28:55,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:28:55,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424951198] [2022-07-22 21:28:55,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:28:55,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:28:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:28:55,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:28:55,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:28:55,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424951198] [2022-07-22 21:28:55,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424951198] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:28:55,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:28:55,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-22 21:28:55,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932660498] [2022-07-22 21:28:55,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:28:55,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-22 21:28:55,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:28:55,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-22 21:28:55,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-07-22 21:28:55,508 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 195 [2022-07-22 21:28:55,509 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) [2022-07-22 21:28:55,509 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:28:55,509 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 195 [2022-07-22 21:28:55,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:29:02,704 INFO L129 PetriNetUnfolder]: 4970/19581 cut-off events. [2022-07-22 21:29:02,705 INFO L130 PetriNetUnfolder]: For 174906/175563 co-relation queries the response was YES. [2022-07-22 21:29:03,572 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. [2022-07-22 21:29:03,636 INFO L132 encePairwiseOnDemand]: 177/195 looper letters, 578 selfloop transitions, 94 changer transitions 0/1060 dead transitions. [2022-07-22 21:29:03,636 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 1060 transitions, 17023 flow [2022-07-22 21:29:03,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-22 21:29:03,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-07-22 21:29:03,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2535 transitions. [2022-07-22 21:29:03,639 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7647058823529411 [2022-07-22 21:29:03,639 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2535 transitions. [2022-07-22 21:29:03,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2535 transitions. [2022-07-22 21:29:03,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:29:03,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2535 transitions. [2022-07-22 21:29:03,641 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) [2022-07-22 21:29:03,643 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) [2022-07-22 21:29:03,644 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) [2022-07-22 21:29:03,644 INFO L186 Difference]: Start difference. First operand has 491 places, 813 transitions, 12673 flow. Second operand 17 states and 2535 transitions. [2022-07-22 21:29:03,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 1060 transitions, 17023 flow [2022-07-22 21:29:05,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 498 places, 1060 transitions, 16813 flow, removed 69 selfloop flow, removed 9 redundant places. [2022-07-22 21:29:05,682 INFO L242 Difference]: Finished difference. Result has 503 places, 834 transitions, 13086 flow [2022-07-22 21:29:05,683 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} [2022-07-22 21:29:05,683 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 322 predicate places. [2022-07-22 21:29:05,683 INFO L495 AbstractCegarLoop]: Abstraction has has 503 places, 834 transitions, 13086 flow [2022-07-22 21:29:05,684 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) [2022-07-22 21:29:05,684 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:29:05,684 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] [2022-07-22 21:29:05,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-22 21:29:05,684 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)] === [2022-07-22 21:29:05,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:29:05,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1801798540, now seen corresponding path program 18 times [2022-07-22 21:29:05,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:29:05,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244356844] [2022-07-22 21:29:05,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:29:05,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:29:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:29:06,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:29:06,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:29:06,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244356844] [2022-07-22 21:29:06,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244356844] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:29:06,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:29:06,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-07-22 21:29:06,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327512239] [2022-07-22 21:29:06,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:29:06,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-22 21:29:06,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:29:06,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-22 21:29:06,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-07-22 21:29:06,218 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 195 [2022-07-22 21:29:06,219 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) [2022-07-22 21:29:06,219 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:29:06,219 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 195 [2022-07-22 21:29:06,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand