/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 07:38:02,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 07:38:02,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 07:38:02,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-13 07:38:02,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-13 07:38:02,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-13 07:38:02,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-13 07:38:02,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-13 07:38:02,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-13 07:38:02,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-13 07:38:02,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-13 07:38:02,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-13 07:38:02,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-13 07:38:02,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-13 07:38:02,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-13 07:38:02,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-13 07:38:02,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-13 07:38:02,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-13 07:38:02,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-13 07:38:02,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-13 07:38:02,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-13 07:38:02,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-13 07:38:02,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-13 07:38:02,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-13 07:38:02,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-13 07:38:02,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-13 07:38:02,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-13 07:38:02,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-13 07:38:02,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-13 07:38:02,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-13 07:38:02,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-13 07:38:02,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-13 07:38:02,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-13 07:38:02,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-06-13 07:38:02,466 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 07:38:02,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 07:38:02,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 07:38:02,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 07:38:02,470 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 07:38:02,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 07:38:02,470 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 07:38:02,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 07:38:02,470 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 07:38:02,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 07:38:02,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 07:38:02,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 07:38:02,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 07:38:02,472 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 07:38:02,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 07:38:02,472 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 07:38:02,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 07:38:02,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 07:38:02,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 07:38:02,473 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 07:38:02,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 07:38:02,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 07:38:02,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 07:38:02,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 07:38:02,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 07:38:02,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 07:38:02,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 07:38:02,474 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 07:38:02,474 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-13 07:38:02,474 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 07:38:02,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 07:38:02,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 07:38:02,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 07:38:02,816 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-13 07:38:02,817 INFO L275 PluginConnector]: CDTParser initialized [2021-06-13 07:38:02,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-06-13 07:38:02,877 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4301716aa/c11ed266bc83407cb4cfff218919ec2f/FLAG60c4a99ac [2021-06-13 07:38:03,339 INFO L306 CDTParser]: Found 1 translation units. [2021-06-13 07:38:03,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-06-13 07:38:03,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4301716aa/c11ed266bc83407cb4cfff218919ec2f/FLAG60c4a99ac [2021-06-13 07:38:03,660 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4301716aa/c11ed266bc83407cb4cfff218919ec2f [2021-06-13 07:38:03,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 07:38:03,664 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-13 07:38:03,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-13 07:38:03,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-13 07:38:03,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-13 07:38:03,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 07:38:03" (1/1) ... [2021-06-13 07:38:03,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@146c67b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:38:03, skipping insertion in model container [2021-06-13 07:38:03,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 07:38:03" (1/1) ... [2021-06-13 07:38:03,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-13 07:38:03,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-13 07:38:03,887 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-13 07:38:04,285 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i[75009,75022] [2021-06-13 07:38:04,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 07:38:04,312 INFO L203 MainTranslator]: Completed pre-run [2021-06-13 07:38:04,324 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-13 07:38:04,350 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i[75009,75022] [2021-06-13 07:38:04,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 07:38:04,622 INFO L208 MainTranslator]: Completed translation [2021-06-13 07:38:04,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:38:04 WrapperNode [2021-06-13 07:38:04,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-13 07:38:04,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 07:38:04,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 07:38:04,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 07:38:04,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:38:04" (1/1) ... [2021-06-13 07:38:04,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:38:04" (1/1) ... [2021-06-13 07:38:04,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 07:38:04,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 07:38:04,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 07:38:04,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 07:38:04,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:38:04" (1/1) ... [2021-06-13 07:38:04,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:38:04" (1/1) ... [2021-06-13 07:38:04,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:38:04" (1/1) ... [2021-06-13 07:38:04,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:38:04" (1/1) ... [2021-06-13 07:38:04,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:38:04" (1/1) ... [2021-06-13 07:38:04,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:38:04" (1/1) ... [2021-06-13 07:38:04,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:38:04" (1/1) ... [2021-06-13 07:38:04,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 07:38:04,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 07:38:04,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 07:38:04,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 07:38:04,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:38:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 07:38:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-13 07:38:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-13 07:38:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-13 07:38:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-13 07:38:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-06-13 07:38:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 07:38:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 07:38:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-06-13 07:38:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-06-13 07:38:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-13 07:38:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-13 07:38:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-13 07:38:04,794 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 07:38:05,362 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 07:38:05,363 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-06-13 07:38:05,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 07:38:05 BoogieIcfgContainer [2021-06-13 07:38:05,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 07:38:05,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 07:38:05,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 07:38:05,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 07:38:05,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.06 07:38:03" (1/3) ... [2021-06-13 07:38:05,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228d649e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 07:38:05, skipping insertion in model container [2021-06-13 07:38:05,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:38:04" (2/3) ... [2021-06-13 07:38:05,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228d649e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 07:38:05, skipping insertion in model container [2021-06-13 07:38:05,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 07:38:05" (3/3) ... [2021-06-13 07:38:05,372 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2021-06-13 07:38:05,379 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 07:38:05,379 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-06-13 07:38:05,380 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 07:38:05,422 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,422 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,422 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,422 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,422 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,423 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,423 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,423 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,423 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,423 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,423 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,423 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,423 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,423 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,424 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,424 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,425 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,425 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,425 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,425 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,425 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,425 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,425 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,425 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,425 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,426 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,426 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,426 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,426 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,426 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,426 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,426 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,427 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,427 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,427 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,428 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,428 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,428 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,428 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,429 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,429 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,429 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,429 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,429 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,430 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,430 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,430 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,430 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,430 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,430 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,430 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,430 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,430 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,431 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,431 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,431 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,431 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,431 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,431 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,431 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,431 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,431 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,432 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,432 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,432 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,432 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,432 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,432 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,432 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,432 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,433 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,433 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,433 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,433 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,433 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,433 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,433 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,433 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,433 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,434 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,434 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,434 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,434 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,434 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,434 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,435 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,435 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,435 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,435 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,435 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,435 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,435 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,437 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,437 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,438 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,438 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,438 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,438 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,438 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,439 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,441 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,441 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,443 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,443 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,447 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,447 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,448 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,448 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,448 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,448 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,448 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,448 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:38:05,457 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-13 07:38:05,477 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-06-13 07:38:05,500 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 07:38:05,500 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 07:38:05,500 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 07:38:05,500 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 07:38:05,500 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 07:38:05,500 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 07:38:05,500 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 07:38:05,500 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 07:38:05,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 158 places, 162 transitions, 346 flow [2021-06-13 07:38:05,597 INFO L129 PetriNetUnfolder]: 11/202 cut-off events. [2021-06-13 07:38:05,597 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-06-13 07:38:05,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 202 events. 11/202 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 337 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2021-06-13 07:38:05,604 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 162 transitions, 346 flow [2021-06-13 07:38:05,612 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 148 places, 150 transitions, 318 flow [2021-06-13 07:38:05,627 INFO L129 PetriNetUnfolder]: 0/37 cut-off events. [2021-06-13 07:38:05,627 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:38:05,627 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:05,628 INFO L255 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] [2021-06-13 07:38:05,628 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:05,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:05,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1369970770, now seen corresponding path program 1 times [2021-06-13 07:38:05,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:05,641 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658947640] [2021-06-13 07:38:05,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:06,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:06,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:06,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:06,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 07:38:06,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:06,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:06,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:06,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:06,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:06,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:06,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:06,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:06,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:06,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:06,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:06,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:06,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658947640] [2021-06-13 07:38:06,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658947640] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:06,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:06,063 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-13 07:38:06,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889377822] [2021-06-13 07:38:06,072 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-13 07:38:06,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:06,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-13 07:38:06,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-13 07:38:06,101 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 162 [2021-06-13 07:38:06,108 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 150 transitions, 318 flow. Second operand has 6 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:06,108 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:06,108 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 162 [2021-06-13 07:38:06,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:06,447 INFO L129 PetriNetUnfolder]: 362/897 cut-off events. [2021-06-13 07:38:06,447 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-06-13 07:38:06,452 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1582 conditions, 897 events. 362/897 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4880 event pairs, 216 based on Foata normal form. 20/877 useless extension candidates. Maximal degree in co-relation 1381. Up to 395 conditions per place. [2021-06-13 07:38:06,460 INFO L132 encePairwiseOnDemand]: 140/162 looper letters, 49 selfloop transitions, 17 changer transitions 1/146 dead transitions. [2021-06-13 07:38:06,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 146 transitions, 444 flow [2021-06-13 07:38:06,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 07:38:06,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-13 07:38:06,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 873 transitions. [2021-06-13 07:38:06,480 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5987654320987654 [2021-06-13 07:38:06,480 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 873 transitions. [2021-06-13 07:38:06,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 873 transitions. [2021-06-13 07:38:06,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:06,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 873 transitions. [2021-06-13 07:38:06,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 97.0) internal successors, (873), 9 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:06,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 162.0) internal successors, (1620), 10 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:06,500 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 162.0) internal successors, (1620), 10 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:06,501 INFO L185 Difference]: Start difference. First operand has 148 places, 150 transitions, 318 flow. Second operand 9 states and 873 transitions. [2021-06-13 07:38:06,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 146 transitions, 444 flow [2021-06-13 07:38:06,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 146 transitions, 432 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-13 07:38:06,511 INFO L241 Difference]: Finished difference. Result has 146 places, 139 transitions, 325 flow [2021-06-13 07:38:06,513 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=325, PETRI_PLACES=146, PETRI_TRANSITIONS=139} [2021-06-13 07:38:06,513 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, -2 predicate places. [2021-06-13 07:38:06,513 INFO L482 AbstractCegarLoop]: Abstraction has has 146 places, 139 transitions, 325 flow [2021-06-13 07:38:06,514 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:06,514 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:06,514 INFO L255 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] [2021-06-13 07:38:06,515 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 07:38:06,515 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:06,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:06,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1499060535, now seen corresponding path program 1 times [2021-06-13 07:38:06,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:06,516 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852912484] [2021-06-13 07:38:06,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:06,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:06,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:06,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:06,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:06,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:06,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:06,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:06,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:06,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:06,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:06,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:06,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:06,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:06,645 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:06,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852912484] [2021-06-13 07:38:06,646 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852912484] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:06,646 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:06,646 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-13 07:38:06,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672797822] [2021-06-13 07:38:06,647 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-13 07:38:06,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:06,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-13 07:38:06,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-13 07:38:06,653 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 162 [2021-06-13 07:38:06,657 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 139 transitions, 325 flow. Second operand has 6 states, 6 states have (on average 92.16666666666667) internal successors, (553), 6 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:06,657 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:06,657 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 162 [2021-06-13 07:38:06,657 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:06,936 INFO L129 PetriNetUnfolder]: 362/873 cut-off events. [2021-06-13 07:38:06,937 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2021-06-13 07:38:06,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1636 conditions, 873 events. 362/873 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4691 event pairs, 120 based on Foata normal form. 1/855 useless extension candidates. Maximal degree in co-relation 1142. Up to 261 conditions per place. [2021-06-13 07:38:06,942 INFO L132 encePairwiseOnDemand]: 143/162 looper letters, 57 selfloop transitions, 18 changer transitions 1/154 dead transitions. [2021-06-13 07:38:06,942 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 154 transitions, 509 flow [2021-06-13 07:38:06,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 07:38:06,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-13 07:38:06,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 967 transitions. [2021-06-13 07:38:06,945 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5969135802469135 [2021-06-13 07:38:06,945 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 967 transitions. [2021-06-13 07:38:06,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 967 transitions. [2021-06-13 07:38:06,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:06,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 967 transitions. [2021-06-13 07:38:06,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 96.7) internal successors, (967), 10 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:06,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 162.0) internal successors, (1782), 11 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:06,951 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 162.0) internal successors, (1782), 11 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:06,952 INFO L185 Difference]: Start difference. First operand has 146 places, 139 transitions, 325 flow. Second operand 10 states and 967 transitions. [2021-06-13 07:38:06,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 154 transitions, 509 flow [2021-06-13 07:38:06,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 154 transitions, 480 flow, removed 0 selfloop flow, removed 7 redundant places. [2021-06-13 07:38:06,960 INFO L241 Difference]: Finished difference. Result has 147 places, 138 transitions, 336 flow [2021-06-13 07:38:06,961 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=336, PETRI_PLACES=147, PETRI_TRANSITIONS=138} [2021-06-13 07:38:06,962 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, -1 predicate places. [2021-06-13 07:38:06,962 INFO L482 AbstractCegarLoop]: Abstraction has has 147 places, 138 transitions, 336 flow [2021-06-13 07:38:06,962 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 92.16666666666667) internal successors, (553), 6 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:06,963 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:06,963 INFO L255 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] [2021-06-13 07:38:06,963 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-13 07:38:06,963 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:06,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:06,965 INFO L82 PathProgramCache]: Analyzing trace with hash 709377487, now seen corresponding path program 1 times [2021-06-13 07:38:06,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:06,966 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120622246] [2021-06-13 07:38:06,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:07,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:07,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:07,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:07,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 07:38:07,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:07,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:07,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:07,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:07,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:07,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:07,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:07,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:07,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:07,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:07,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:07,106 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:07,106 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120622246] [2021-06-13 07:38:07,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120622246] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:07,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:07,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-13 07:38:07,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316754738] [2021-06-13 07:38:07,107 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-13 07:38:07,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:07,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-13 07:38:07,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-13 07:38:07,110 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 162 [2021-06-13 07:38:07,111 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 138 transitions, 336 flow. Second operand has 6 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:07,111 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:07,111 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 162 [2021-06-13 07:38:07,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:07,608 INFO L129 PetriNetUnfolder]: 833/1776 cut-off events. [2021-06-13 07:38:07,608 INFO L130 PetriNetUnfolder]: For 90/90 co-relation queries the response was YES. [2021-06-13 07:38:07,611 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3514 conditions, 1776 events. 833/1776 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 10669 event pairs, 169 based on Foata normal form. 32/1792 useless extension candidates. Maximal degree in co-relation 1067. Up to 497 conditions per place. [2021-06-13 07:38:07,618 INFO L132 encePairwiseOnDemand]: 141/162 looper letters, 96 selfloop transitions, 49 changer transitions 0/223 dead transitions. [2021-06-13 07:38:07,618 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 223 transitions, 812 flow [2021-06-13 07:38:07,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 07:38:07,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-13 07:38:07,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1276 transitions. [2021-06-13 07:38:07,622 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6058879392212726 [2021-06-13 07:38:07,622 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1276 transitions. [2021-06-13 07:38:07,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1276 transitions. [2021-06-13 07:38:07,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:07,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1276 transitions. [2021-06-13 07:38:07,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 98.15384615384616) internal successors, (1276), 13 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:07,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 162.0) internal successors, (2268), 14 states have internal predecessors, (2268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:07,633 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 162.0) internal successors, (2268), 14 states have internal predecessors, (2268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:07,634 INFO L185 Difference]: Start difference. First operand has 147 places, 138 transitions, 336 flow. Second operand 13 states and 1276 transitions. [2021-06-13 07:38:07,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 223 transitions, 812 flow [2021-06-13 07:38:07,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 223 transitions, 766 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-06-13 07:38:07,642 INFO L241 Difference]: Finished difference. Result has 159 places, 175 transitions, 606 flow [2021-06-13 07:38:07,643 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=606, PETRI_PLACES=159, PETRI_TRANSITIONS=175} [2021-06-13 07:38:07,643 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 11 predicate places. [2021-06-13 07:38:07,643 INFO L482 AbstractCegarLoop]: Abstraction has has 159 places, 175 transitions, 606 flow [2021-06-13 07:38:07,643 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:07,643 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:07,643 INFO L255 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] [2021-06-13 07:38:07,644 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-13 07:38:07,644 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:07,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:07,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1924610094, now seen corresponding path program 1 times [2021-06-13 07:38:07,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:07,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571837436] [2021-06-13 07:38:07,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:07,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:07,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:07,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:07,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:07,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:07,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:07,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:07,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:07,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:07,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:07,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:07,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:07,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:07,773 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:07,773 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571837436] [2021-06-13 07:38:07,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571837436] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:07,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:07,774 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-13 07:38:07,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290560149] [2021-06-13 07:38:07,774 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-13 07:38:07,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:07,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-13 07:38:07,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-13 07:38:07,777 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 162 [2021-06-13 07:38:07,777 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 175 transitions, 606 flow. Second operand has 6 states, 6 states have (on average 92.16666666666667) internal successors, (553), 6 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:07,777 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:07,778 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 162 [2021-06-13 07:38:07,778 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:08,316 INFO L129 PetriNetUnfolder]: 1082/2253 cut-off events. [2021-06-13 07:38:08,316 INFO L130 PetriNetUnfolder]: For 10580/10620 co-relation queries the response was YES. [2021-06-13 07:38:08,323 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8736 conditions, 2253 events. 1082/2253 cut-off events. For 10580/10620 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 14504 event pairs, 218 based on Foata normal form. 47/2284 useless extension candidates. Maximal degree in co-relation 7478. Up to 730 conditions per place. [2021-06-13 07:38:08,336 INFO L132 encePairwiseOnDemand]: 143/162 looper letters, 70 selfloop transitions, 48 changer transitions 68/264 dead transitions. [2021-06-13 07:38:08,336 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 264 transitions, 1682 flow [2021-06-13 07:38:08,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 07:38:08,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-13 07:38:08,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1083 transitions. [2021-06-13 07:38:08,340 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6077441077441077 [2021-06-13 07:38:08,340 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1083 transitions. [2021-06-13 07:38:08,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1083 transitions. [2021-06-13 07:38:08,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:08,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1083 transitions. [2021-06-13 07:38:08,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 98.45454545454545) internal successors, (1083), 11 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:08,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 162.0) internal successors, (1944), 12 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:08,346 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 162.0) internal successors, (1944), 12 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:08,346 INFO L185 Difference]: Start difference. First operand has 159 places, 175 transitions, 606 flow. Second operand 11 states and 1083 transitions. [2021-06-13 07:38:08,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 264 transitions, 1682 flow [2021-06-13 07:38:08,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 264 transitions, 1682 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-13 07:38:08,365 INFO L241 Difference]: Finished difference. Result has 177 places, 182 transitions, 921 flow [2021-06-13 07:38:08,365 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=921, PETRI_PLACES=177, PETRI_TRANSITIONS=182} [2021-06-13 07:38:08,366 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 29 predicate places. [2021-06-13 07:38:08,366 INFO L482 AbstractCegarLoop]: Abstraction has has 177 places, 182 transitions, 921 flow [2021-06-13 07:38:08,366 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 92.16666666666667) internal successors, (553), 6 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:08,366 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:08,366 INFO L255 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] [2021-06-13 07:38:08,367 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-13 07:38:08,367 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:08,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:08,367 INFO L82 PathProgramCache]: Analyzing trace with hash 173885653, now seen corresponding path program 1 times [2021-06-13 07:38:08,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:08,368 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140101421] [2021-06-13 07:38:08,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:08,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:08,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:08,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:08,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:08,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:08,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:08,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:08,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:08,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:08,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:08,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:08,444 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:08,444 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140101421] [2021-06-13 07:38:08,444 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140101421] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:08,444 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:08,445 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-13 07:38:08,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571763238] [2021-06-13 07:38:08,445 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-13 07:38:08,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:08,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-13 07:38:08,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-13 07:38:08,447 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 162 [2021-06-13 07:38:08,448 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 182 transitions, 921 flow. Second operand has 5 states, 5 states have (on average 140.8) internal successors, (704), 5 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:08,448 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:08,448 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 162 [2021-06-13 07:38:08,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:08,497 INFO L129 PetriNetUnfolder]: 5/143 cut-off events. [2021-06-13 07:38:08,497 INFO L130 PetriNetUnfolder]: For 455/515 co-relation queries the response was YES. [2021-06-13 07:38:08,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 143 events. 5/143 cut-off events. For 455/515 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 190 event pairs, 4 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 306. Up to 13 conditions per place. [2021-06-13 07:38:08,498 INFO L132 encePairwiseOnDemand]: 157/162 looper letters, 5 selfloop transitions, 4 changer transitions 0/115 dead transitions. [2021-06-13 07:38:08,498 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 115 transitions, 382 flow [2021-06-13 07:38:08,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-13 07:38:08,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-13 07:38:08,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 844 transitions. [2021-06-13 07:38:08,500 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8683127572016461 [2021-06-13 07:38:08,500 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 844 transitions. [2021-06-13 07:38:08,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 844 transitions. [2021-06-13 07:38:08,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:08,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 844 transitions. [2021-06-13 07:38:08,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 140.66666666666666) internal successors, (844), 6 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:08,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:08,504 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:08,505 INFO L185 Difference]: Start difference. First operand has 177 places, 182 transitions, 921 flow. Second operand 6 states and 844 transitions. [2021-06-13 07:38:08,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 115 transitions, 382 flow [2021-06-13 07:38:08,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 115 transitions, 262 flow, removed 40 selfloop flow, removed 19 redundant places. [2021-06-13 07:38:08,508 INFO L241 Difference]: Finished difference. Result has 126 places, 115 transitions, 252 flow [2021-06-13 07:38:08,508 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=252, PETRI_PLACES=126, PETRI_TRANSITIONS=115} [2021-06-13 07:38:08,508 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, -22 predicate places. [2021-06-13 07:38:08,508 INFO L482 AbstractCegarLoop]: Abstraction has has 126 places, 115 transitions, 252 flow [2021-06-13 07:38:08,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 140.8) internal successors, (704), 5 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:08,509 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:08,509 INFO L255 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] [2021-06-13 07:38:08,509 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-13 07:38:08,509 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:08,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:08,510 INFO L82 PathProgramCache]: Analyzing trace with hash 602789138, now seen corresponding path program 1 times [2021-06-13 07:38:08,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:08,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580366106] [2021-06-13 07:38:08,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:08,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:08,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:08,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:08,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:08,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:08,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:08,740 INFO L142 QuantifierPusher]: treesize reduction 17, result has 59.5 percent of original size [2021-06-13 07:38:08,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:38:08,769 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:38:08,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:08,790 INFO L142 QuantifierPusher]: treesize reduction 10, result has 61.5 percent of original size [2021-06-13 07:38:08,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 07:38:08,804 INFO L142 QuantifierPusher]: treesize reduction 10, result has 61.5 percent of original size [2021-06-13 07:38:08,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 07:38:08,825 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-06-13 07:38:08,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 07:38:08,843 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-06-13 07:38:08,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:08,874 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-13 07:38:08,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-13 07:38:08,890 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:38:08,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:08,906 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:38:08,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:08,908 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:38:08,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:38:08,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:08,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:08,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:08,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:08,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:08,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:08,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:08,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:08,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:08,957 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:08,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580366106] [2021-06-13 07:38:08,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580366106] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:08,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:08,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-13 07:38:08,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309762350] [2021-06-13 07:38:08,958 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-13 07:38:08,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:08,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-13 07:38:08,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-13 07:38:08,961 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 162 [2021-06-13 07:38:08,962 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 115 transitions, 252 flow. Second operand has 15 states, 15 states have (on average 71.73333333333333) internal successors, (1076), 15 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:08,962 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:08,962 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 162 [2021-06-13 07:38:08,962 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:09,783 INFO L129 PetriNetUnfolder]: 362/942 cut-off events. [2021-06-13 07:38:09,783 INFO L130 PetriNetUnfolder]: For 116/116 co-relation queries the response was YES. [2021-06-13 07:38:09,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1848 conditions, 942 events. 362/942 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 5044 event pairs, 146 based on Foata normal form. 0/920 useless extension candidates. Maximal degree in co-relation 1840. Up to 268 conditions per place. [2021-06-13 07:38:09,789 INFO L132 encePairwiseOnDemand]: 140/162 looper letters, 92 selfloop transitions, 25 changer transitions 0/169 dead transitions. [2021-06-13 07:38:09,789 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 169 transitions, 620 flow [2021-06-13 07:38:09,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 07:38:09,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-06-13 07:38:09,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1342 transitions. [2021-06-13 07:38:09,793 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.46021947873799723 [2021-06-13 07:38:09,793 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1342 transitions. [2021-06-13 07:38:09,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1342 transitions. [2021-06-13 07:38:09,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:09,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1342 transitions. [2021-06-13 07:38:09,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 74.55555555555556) internal successors, (1342), 18 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:09,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 162.0) internal successors, (3078), 19 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:09,801 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 162.0) internal successors, (3078), 19 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:09,801 INFO L185 Difference]: Start difference. First operand has 126 places, 115 transitions, 252 flow. Second operand 18 states and 1342 transitions. [2021-06-13 07:38:09,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 169 transitions, 620 flow [2021-06-13 07:38:09,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 169 transitions, 613 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-13 07:38:09,805 INFO L241 Difference]: Finished difference. Result has 149 places, 129 transitions, 378 flow [2021-06-13 07:38:09,805 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=378, PETRI_PLACES=149, PETRI_TRANSITIONS=129} [2021-06-13 07:38:09,806 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 1 predicate places. [2021-06-13 07:38:09,806 INFO L482 AbstractCegarLoop]: Abstraction has has 149 places, 129 transitions, 378 flow [2021-06-13 07:38:09,806 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 71.73333333333333) internal successors, (1076), 15 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:09,806 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:09,806 INFO L255 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] [2021-06-13 07:38:09,806 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-13 07:38:09,807 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:09,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:09,807 INFO L82 PathProgramCache]: Analyzing trace with hash -314340638, now seen corresponding path program 2 times [2021-06-13 07:38:09,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:09,807 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308121419] [2021-06-13 07:38:09,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:10,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:10,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:10,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:10,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:10,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:10,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:10,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:10,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:10,033 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-13 07:38:10,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:10,043 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:10,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:10,056 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:10,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:10,070 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-06-13 07:38:10,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:10,085 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-06-13 07:38:10,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 07:38:10,103 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.9 percent of original size [2021-06-13 07:38:10,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-13 07:38:10,115 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-06-13 07:38:10,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 07:38:10,130 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:10,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:10,142 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:10,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:10,145 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:38:10,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:38:10,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:10,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:10,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:10,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:10,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:10,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:10,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:10,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:10,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:10,200 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:10,200 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308121419] [2021-06-13 07:38:10,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308121419] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:10,201 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:10,201 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-13 07:38:10,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763620182] [2021-06-13 07:38:10,201 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-13 07:38:10,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:10,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-13 07:38:10,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-06-13 07:38:10,204 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 162 [2021-06-13 07:38:10,205 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 129 transitions, 378 flow. Second operand has 15 states, 15 states have (on average 71.73333333333333) internal successors, (1076), 15 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:10,205 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:10,205 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 162 [2021-06-13 07:38:10,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:11,029 INFO L129 PetriNetUnfolder]: 468/1273 cut-off events. [2021-06-13 07:38:11,029 INFO L130 PetriNetUnfolder]: For 668/684 co-relation queries the response was YES. [2021-06-13 07:38:11,033 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2850 conditions, 1273 events. 468/1273 cut-off events. For 668/684 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 7766 event pairs, 123 based on Foata normal form. 17/1258 useless extension candidates. Maximal degree in co-relation 2832. Up to 254 conditions per place. [2021-06-13 07:38:11,037 INFO L132 encePairwiseOnDemand]: 137/162 looper letters, 111 selfloop transitions, 30 changer transitions 0/194 dead transitions. [2021-06-13 07:38:11,037 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 194 transitions, 911 flow [2021-06-13 07:38:11,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 07:38:11,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-06-13 07:38:11,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1276 transitions. [2021-06-13 07:38:11,041 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.46332607116920843 [2021-06-13 07:38:11,041 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1276 transitions. [2021-06-13 07:38:11,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1276 transitions. [2021-06-13 07:38:11,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:11,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1276 transitions. [2021-06-13 07:38:11,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 75.05882352941177) internal successors, (1276), 17 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:11,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 162.0) internal successors, (2916), 18 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:11,050 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 162.0) internal successors, (2916), 18 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:11,050 INFO L185 Difference]: Start difference. First operand has 149 places, 129 transitions, 378 flow. Second operand 17 states and 1276 transitions. [2021-06-13 07:38:11,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 194 transitions, 911 flow [2021-06-13 07:38:11,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 194 transitions, 898 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-06-13 07:38:11,060 INFO L241 Difference]: Finished difference. Result has 168 places, 144 transitions, 548 flow [2021-06-13 07:38:11,060 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=548, PETRI_PLACES=168, PETRI_TRANSITIONS=144} [2021-06-13 07:38:11,060 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 20 predicate places. [2021-06-13 07:38:11,061 INFO L482 AbstractCegarLoop]: Abstraction has has 168 places, 144 transitions, 548 flow [2021-06-13 07:38:11,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 71.73333333333333) internal successors, (1076), 15 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:11,061 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:11,061 INFO L255 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] [2021-06-13 07:38:11,061 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-13 07:38:11,062 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:11,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:11,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1512655422, now seen corresponding path program 3 times [2021-06-13 07:38:11,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:11,063 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282520449] [2021-06-13 07:38:11,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:11,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:11,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:11,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:11,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:11,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:11,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:11,332 INFO L142 QuantifierPusher]: treesize reduction 20, result has 52.4 percent of original size [2021-06-13 07:38:11,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 07:38:11,355 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-13 07:38:11,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:11,368 INFO L142 QuantifierPusher]: treesize reduction 11, result has 59.3 percent of original size [2021-06-13 07:38:11,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 07:38:11,382 INFO L142 QuantifierPusher]: treesize reduction 11, result has 59.3 percent of original size [2021-06-13 07:38:11,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 07:38:11,395 INFO L142 QuantifierPusher]: treesize reduction 15, result has 48.3 percent of original size [2021-06-13 07:38:11,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 07:38:11,418 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-13 07:38:11,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:11,439 INFO L142 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-06-13 07:38:11,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-13 07:38:11,452 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-13 07:38:11,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:11,468 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:38:11,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:38:11,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:11,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:11,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:11,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:11,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:11,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:11,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:11,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:11,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:11,519 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:11,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282520449] [2021-06-13 07:38:11,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282520449] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:11,519 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:11,520 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-13 07:38:11,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904953901] [2021-06-13 07:38:11,520 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-13 07:38:11,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:11,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-13 07:38:11,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-06-13 07:38:11,523 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 162 [2021-06-13 07:38:11,524 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 144 transitions, 548 flow. Second operand has 15 states, 15 states have (on average 71.73333333333333) internal successors, (1076), 15 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:11,524 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:11,524 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 162 [2021-06-13 07:38:11,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:12,511 INFO L129 PetriNetUnfolder]: 623/1832 cut-off events. [2021-06-13 07:38:12,511 INFO L130 PetriNetUnfolder]: For 1892/1923 co-relation queries the response was YES. [2021-06-13 07:38:12,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4682 conditions, 1832 events. 623/1832 cut-off events. For 1892/1923 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 12934 event pairs, 275 based on Foata normal form. 26/1800 useless extension candidates. Maximal degree in co-relation 4657. Up to 586 conditions per place. [2021-06-13 07:38:12,526 INFO L132 encePairwiseOnDemand]: 140/162 looper letters, 116 selfloop transitions, 39 changer transitions 0/208 dead transitions. [2021-06-13 07:38:12,526 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 208 transitions, 1192 flow [2021-06-13 07:38:12,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-13 07:38:12,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-06-13 07:38:12,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1342 transitions. [2021-06-13 07:38:12,530 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.46021947873799723 [2021-06-13 07:38:12,530 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1342 transitions. [2021-06-13 07:38:12,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1342 transitions. [2021-06-13 07:38:12,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:12,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1342 transitions. [2021-06-13 07:38:12,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 74.55555555555556) internal successors, (1342), 18 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:12,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 162.0) internal successors, (3078), 19 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:12,538 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 162.0) internal successors, (3078), 19 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:12,538 INFO L185 Difference]: Start difference. First operand has 168 places, 144 transitions, 548 flow. Second operand 18 states and 1342 transitions. [2021-06-13 07:38:12,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 208 transitions, 1192 flow [2021-06-13 07:38:12,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 208 transitions, 1162 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-06-13 07:38:12,548 INFO L241 Difference]: Finished difference. Result has 189 places, 162 transitions, 783 flow [2021-06-13 07:38:12,549 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=783, PETRI_PLACES=189, PETRI_TRANSITIONS=162} [2021-06-13 07:38:12,549 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 41 predicate places. [2021-06-13 07:38:12,549 INFO L482 AbstractCegarLoop]: Abstraction has has 189 places, 162 transitions, 783 flow [2021-06-13 07:38:12,549 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 71.73333333333333) internal successors, (1076), 15 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:12,550 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:12,550 INFO L255 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] [2021-06-13 07:38:12,550 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-13 07:38:12,550 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:12,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:12,551 INFO L82 PathProgramCache]: Analyzing trace with hash 2119958030, now seen corresponding path program 4 times [2021-06-13 07:38:12,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:12,551 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193546329] [2021-06-13 07:38:12,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:12,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:12,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:12,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:12,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:12,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:12,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:12,724 INFO L142 QuantifierPusher]: treesize reduction 17, result has 59.5 percent of original size [2021-06-13 07:38:12,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:38:12,746 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:38:12,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:12,760 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:38:12,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:12,775 INFO L142 QuantifierPusher]: treesize reduction 14, result has 51.7 percent of original size [2021-06-13 07:38:12,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:12,789 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-06-13 07:38:12,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 07:38:12,802 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-06-13 07:38:12,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:12,819 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-13 07:38:12,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-13 07:38:12,829 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:38:12,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:12,843 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:38:12,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:38:12,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:12,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:12,865 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:12,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:12,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:12,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:12,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:12,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:12,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:12,889 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:12,889 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193546329] [2021-06-13 07:38:12,889 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193546329] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:12,889 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:12,889 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-13 07:38:12,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405170481] [2021-06-13 07:38:12,890 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-13 07:38:12,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:12,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-13 07:38:12,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-06-13 07:38:12,895 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 162 [2021-06-13 07:38:12,896 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 162 transitions, 783 flow. Second operand has 15 states, 15 states have (on average 71.73333333333333) internal successors, (1076), 15 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:12,896 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:12,896 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 162 [2021-06-13 07:38:12,896 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:13,988 INFO L129 PetriNetUnfolder]: 749/2297 cut-off events. [2021-06-13 07:38:13,988 INFO L130 PetriNetUnfolder]: For 3494/3565 co-relation queries the response was YES. [2021-06-13 07:38:13,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6364 conditions, 2297 events. 749/2297 cut-off events. For 3494/3565 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 17961 event pairs, 131 based on Foata normal form. 54/2309 useless extension candidates. Maximal degree in co-relation 6328. Up to 462 conditions per place. [2021-06-13 07:38:14,007 INFO L132 encePairwiseOnDemand]: 137/162 looper letters, 152 selfloop transitions, 59 changer transitions 0/264 dead transitions. [2021-06-13 07:38:14,008 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 264 transitions, 1807 flow [2021-06-13 07:38:14,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-13 07:38:14,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-13 07:38:14,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1437 transitions. [2021-06-13 07:38:14,018 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4668615984405458 [2021-06-13 07:38:14,019 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1437 transitions. [2021-06-13 07:38:14,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1437 transitions. [2021-06-13 07:38:14,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:14,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1437 transitions. [2021-06-13 07:38:14,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 75.63157894736842) internal successors, (1437), 19 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:14,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 162.0) internal successors, (3240), 20 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:14,034 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 162.0) internal successors, (3240), 20 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:14,034 INFO L185 Difference]: Start difference. First operand has 189 places, 162 transitions, 783 flow. Second operand 19 states and 1437 transitions. [2021-06-13 07:38:14,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 264 transitions, 1807 flow [2021-06-13 07:38:14,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 264 transitions, 1770 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-06-13 07:38:14,053 INFO L241 Difference]: Finished difference. Result has 210 places, 188 transitions, 1206 flow [2021-06-13 07:38:14,053 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1206, PETRI_PLACES=210, PETRI_TRANSITIONS=188} [2021-06-13 07:38:14,053 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 62 predicate places. [2021-06-13 07:38:14,053 INFO L482 AbstractCegarLoop]: Abstraction has has 210 places, 188 transitions, 1206 flow [2021-06-13 07:38:14,058 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 71.73333333333333) internal successors, (1076), 15 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:14,058 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:14,058 INFO L255 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] [2021-06-13 07:38:14,058 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-13 07:38:14,058 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:14,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:14,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1006904224, now seen corresponding path program 5 times [2021-06-13 07:38:14,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:14,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848456850] [2021-06-13 07:38:14,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:14,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:14,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:14,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:14,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:14,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:14,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 07:38:14,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:14,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 07:38:14,297 INFO L142 QuantifierPusher]: treesize reduction 25, result has 39.0 percent of original size [2021-06-13 07:38:14,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 07:38:14,307 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-06-13 07:38:14,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 07:38:14,318 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-06-13 07:38:14,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 07:38:14,331 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-06-13 07:38:14,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 07:38:14,342 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-06-13 07:38:14,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 07:38:14,355 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-06-13 07:38:14,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:14,376 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-13 07:38:14,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-13 07:38:14,387 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:14,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:14,399 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:14,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:14,400 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:38:14,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:38:14,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:14,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:14,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:14,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:14,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:14,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:14,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:14,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:14,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:14,454 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:14,454 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848456850] [2021-06-13 07:38:14,454 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848456850] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:14,454 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:14,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-13 07:38:14,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113274137] [2021-06-13 07:38:14,455 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-13 07:38:14,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:14,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-13 07:38:14,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-06-13 07:38:14,457 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 162 [2021-06-13 07:38:14,458 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 188 transitions, 1206 flow. Second operand has 15 states, 15 states have (on average 71.73333333333333) internal successors, (1076), 15 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:14,458 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:14,458 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 162 [2021-06-13 07:38:14,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:15,515 INFO L129 PetriNetUnfolder]: 750/2391 cut-off events. [2021-06-13 07:38:15,516 INFO L130 PetriNetUnfolder]: For 5968/6056 co-relation queries the response was YES. [2021-06-13 07:38:15,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7349 conditions, 2391 events. 750/2391 cut-off events. For 5968/6056 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 18912 event pairs, 234 based on Foata normal form. 58/2387 useless extension candidates. Maximal degree in co-relation 7305. Up to 597 conditions per place. [2021-06-13 07:38:15,536 INFO L132 encePairwiseOnDemand]: 139/162 looper letters, 160 selfloop transitions, 62 changer transitions 0/275 dead transitions. [2021-06-13 07:38:15,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 275 transitions, 2258 flow [2021-06-13 07:38:15,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-13 07:38:15,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-13 07:38:15,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1428 transitions. [2021-06-13 07:38:15,539 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.46393762183235865 [2021-06-13 07:38:15,539 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1428 transitions. [2021-06-13 07:38:15,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1428 transitions. [2021-06-13 07:38:15,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:15,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1428 transitions. [2021-06-13 07:38:15,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 75.15789473684211) internal successors, (1428), 19 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:15,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 162.0) internal successors, (3240), 20 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:15,547 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 162.0) internal successors, (3240), 20 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:15,547 INFO L185 Difference]: Start difference. First operand has 210 places, 188 transitions, 1206 flow. Second operand 19 states and 1428 transitions. [2021-06-13 07:38:15,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 275 transitions, 2258 flow [2021-06-13 07:38:15,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 275 transitions, 2184 flow, removed 27 selfloop flow, removed 6 redundant places. [2021-06-13 07:38:15,578 INFO L241 Difference]: Finished difference. Result has 231 places, 210 transitions, 1620 flow [2021-06-13 07:38:15,579 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=1151, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1620, PETRI_PLACES=231, PETRI_TRANSITIONS=210} [2021-06-13 07:38:15,579 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 83 predicate places. [2021-06-13 07:38:15,579 INFO L482 AbstractCegarLoop]: Abstraction has has 231 places, 210 transitions, 1620 flow [2021-06-13 07:38:15,579 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 71.73333333333333) internal successors, (1076), 15 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:15,580 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:15,580 INFO L255 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] [2021-06-13 07:38:15,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-13 07:38:15,580 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:15,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:15,581 INFO L82 PathProgramCache]: Analyzing trace with hash 2019276328, now seen corresponding path program 6 times [2021-06-13 07:38:15,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:15,582 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030789264] [2021-06-13 07:38:15,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:15,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:15,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:15,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:15,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:15,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:15,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 07:38:15,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:15,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 07:38:15,795 INFO L142 QuantifierPusher]: treesize reduction 25, result has 39.0 percent of original size [2021-06-13 07:38:15,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 07:38:15,806 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-06-13 07:38:15,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 07:38:15,819 INFO L142 QuantifierPusher]: treesize reduction 10, result has 70.6 percent of original size [2021-06-13 07:38:15,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 07:38:15,837 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-06-13 07:38:15,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:38:15,856 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-06-13 07:38:15,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:38:15,876 INFO L142 QuantifierPusher]: treesize reduction 16, result has 61.0 percent of original size [2021-06-13 07:38:15,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:38:15,898 INFO L142 QuantifierPusher]: treesize reduction 16, result has 68.0 percent of original size [2021-06-13 07:38:15,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-06-13 07:38:15,934 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.9 percent of original size [2021-06-13 07:38:15,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-13 07:38:15,955 INFO L142 QuantifierPusher]: treesize reduction 9, result has 76.3 percent of original size [2021-06-13 07:38:15,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-13 07:38:15,976 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-06-13 07:38:15,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:38:15,997 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:15,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:16,009 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:16,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:16,010 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:38:16,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:38:16,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:16,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:16,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:16,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:16,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:16,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:16,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:16,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:16,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:16,057 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:16,057 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030789264] [2021-06-13 07:38:16,057 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030789264] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:16,057 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:16,057 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-13 07:38:16,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076086334] [2021-06-13 07:38:16,058 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 07:38:16,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:16,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 07:38:16,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-06-13 07:38:16,059 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 162 [2021-06-13 07:38:16,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 210 transitions, 1620 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:16,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:16,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 162 [2021-06-13 07:38:16,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:17,760 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-13 07:38:18,024 INFO L129 PetriNetUnfolder]: 1404/4094 cut-off events. [2021-06-13 07:38:18,024 INFO L130 PetriNetUnfolder]: For 13626/13695 co-relation queries the response was YES. [2021-06-13 07:38:18,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13110 conditions, 4094 events. 1404/4094 cut-off events. For 13626/13695 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 36018 event pairs, 273 based on Foata normal form. 15/4009 useless extension candidates. Maximal degree in co-relation 13056. Up to 1429 conditions per place. [2021-06-13 07:38:18,107 INFO L132 encePairwiseOnDemand]: 136/162 looper letters, 221 selfloop transitions, 80 changer transitions 0/350 dead transitions. [2021-06-13 07:38:18,107 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 350 transitions, 3443 flow [2021-06-13 07:38:18,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-13 07:38:18,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-13 07:38:18,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1388 transitions. [2021-06-13 07:38:18,111 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.45094217024041583 [2021-06-13 07:38:18,111 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1388 transitions. [2021-06-13 07:38:18,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1388 transitions. [2021-06-13 07:38:18,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:18,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1388 transitions. [2021-06-13 07:38:18,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 73.05263157894737) internal successors, (1388), 19 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:18,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 162.0) internal successors, (3240), 20 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:18,130 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 162.0) internal successors, (3240), 20 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:18,130 INFO L185 Difference]: Start difference. First operand has 231 places, 210 transitions, 1620 flow. Second operand 19 states and 1388 transitions. [2021-06-13 07:38:18,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 350 transitions, 3443 flow [2021-06-13 07:38:18,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 350 transitions, 3337 flow, removed 34 selfloop flow, removed 6 redundant places. [2021-06-13 07:38:18,194 INFO L241 Difference]: Finished difference. Result has 253 places, 249 transitions, 2335 flow [2021-06-13 07:38:18,195 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=1549, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2335, PETRI_PLACES=253, PETRI_TRANSITIONS=249} [2021-06-13 07:38:18,195 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 105 predicate places. [2021-06-13 07:38:18,195 INFO L482 AbstractCegarLoop]: Abstraction has has 253 places, 249 transitions, 2335 flow [2021-06-13 07:38:18,196 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:18,196 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:18,196 INFO L255 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] [2021-06-13 07:38:18,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-13 07:38:18,196 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:18,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:18,197 INFO L82 PathProgramCache]: Analyzing trace with hash 564113174, now seen corresponding path program 1 times [2021-06-13 07:38:18,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:18,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172117788] [2021-06-13 07:38:18,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:18,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:18,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-13 07:38:18,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 07:38:18,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:18,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 07:38:18,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:18,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:18,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-06-13 07:38:18,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:38:18,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:38:18,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-13 07:38:18,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:38:18,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:38:18,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-13 07:38:18,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-13 07:38:18,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-13 07:38:18,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-06-13 07:38:18,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:38:18,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:38:18,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-06-13 07:38:18,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:38:18,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-13 07:38:18,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:18,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:18,782 INFO L142 QuantifierPusher]: treesize reduction 7, result has 97.0 percent of original size [2021-06-13 07:38:18,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 230 [2021-06-13 07:38:18,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:18,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:18,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:18,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:18,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172117788] [2021-06-13 07:38:18,857 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172117788] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:18,857 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:18,857 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-13 07:38:18,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836109361] [2021-06-13 07:38:18,857 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-13 07:38:18,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:18,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-13 07:38:18,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-06-13 07:38:18,859 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 162 [2021-06-13 07:38:18,860 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 249 transitions, 2335 flow. Second operand has 19 states, 19 states have (on average 89.84210526315789) internal successors, (1707), 19 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:18,860 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:18,860 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 162 [2021-06-13 07:38:18,861 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:22,451 INFO L129 PetriNetUnfolder]: 2626/6589 cut-off events. [2021-06-13 07:38:22,451 INFO L130 PetriNetUnfolder]: For 28189/28348 co-relation queries the response was YES. [2021-06-13 07:38:22,486 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23449 conditions, 6589 events. 2626/6589 cut-off events. For 28189/28348 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 56956 event pairs, 531 based on Foata normal form. 241/6730 useless extension candidates. Maximal degree in co-relation 23386. Up to 1950 conditions per place. [2021-06-13 07:38:22,511 INFO L132 encePairwiseOnDemand]: 138/162 looper letters, 294 selfloop transitions, 136 changer transitions 0/566 dead transitions. [2021-06-13 07:38:22,511 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 566 transitions, 6076 flow [2021-06-13 07:38:22,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-06-13 07:38:22,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2021-06-13 07:38:22,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 4009 transitions. [2021-06-13 07:38:22,518 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.575509618145277 [2021-06-13 07:38:22,518 INFO L72 ComplementDD]: Start complementDD. Operand 43 states and 4009 transitions. [2021-06-13 07:38:22,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 4009 transitions. [2021-06-13 07:38:22,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:22,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 43 states and 4009 transitions. [2021-06-13 07:38:22,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 43 states have (on average 93.23255813953489) internal successors, (4009), 43 states have internal predecessors, (4009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:22,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 44 states, 44 states have (on average 162.0) internal successors, (7128), 44 states have internal predecessors, (7128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:22,535 INFO L81 ComplementDD]: Finished complementDD. Result has 44 states, 44 states have (on average 162.0) internal successors, (7128), 44 states have internal predecessors, (7128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:22,535 INFO L185 Difference]: Start difference. First operand has 253 places, 249 transitions, 2335 flow. Second operand 43 states and 4009 transitions. [2021-06-13 07:38:22,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 566 transitions, 6076 flow [2021-06-13 07:38:22,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 566 transitions, 5971 flow, removed 16 selfloop flow, removed 6 redundant places. [2021-06-13 07:38:22,743 INFO L241 Difference]: Finished difference. Result has 304 places, 379 transitions, 3763 flow [2021-06-13 07:38:22,743 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=2284, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=3763, PETRI_PLACES=304, PETRI_TRANSITIONS=379} [2021-06-13 07:38:22,743 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 156 predicate places. [2021-06-13 07:38:22,743 INFO L482 AbstractCegarLoop]: Abstraction has has 304 places, 379 transitions, 3763 flow [2021-06-13 07:38:22,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 89.84210526315789) internal successors, (1707), 19 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:22,744 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:22,744 INFO L255 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] [2021-06-13 07:38:22,744 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-13 07:38:22,744 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:22,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:22,745 INFO L82 PathProgramCache]: Analyzing trace with hash 414257426, now seen corresponding path program 7 times [2021-06-13 07:38:22,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:22,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868232256] [2021-06-13 07:38:22,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:22,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:22,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:22,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:22,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:22,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:22,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:22,904 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-13 07:38:22,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:22,917 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:22,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:22,929 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:38:22,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:22,947 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-13 07:38:22,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 07:38:22,965 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-13 07:38:22,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 07:38:22,985 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-06-13 07:38:22,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 07:38:23,007 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-13 07:38:23,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:23,026 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-13 07:38:23,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-13 07:38:23,050 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-13 07:38:23,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-13 07:38:23,063 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-13 07:38:23,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:38:23,082 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:23,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:23,099 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:23,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:23,100 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:38:23,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:38:23,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:23,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:23,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:23,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:23,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:23,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:23,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:23,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:23,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:23,159 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:23,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868232256] [2021-06-13 07:38:23,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868232256] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:23,159 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:23,159 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-13 07:38:23,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798439365] [2021-06-13 07:38:23,159 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 07:38:23,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:23,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 07:38:23,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-13 07:38:23,162 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 162 [2021-06-13 07:38:23,163 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 379 transitions, 3763 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:23,163 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:23,163 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 162 [2021-06-13 07:38:23,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:25,784 INFO L129 PetriNetUnfolder]: 2245/6183 cut-off events. [2021-06-13 07:38:25,785 INFO L130 PetriNetUnfolder]: For 36043/36327 co-relation queries the response was YES. [2021-06-13 07:38:25,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24561 conditions, 6183 events. 2245/6183 cut-off events. For 36043/36327 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 56700 event pairs, 488 based on Foata normal form. 103/6177 useless extension candidates. Maximal degree in co-relation 24482. Up to 2185 conditions per place. [2021-06-13 07:38:25,840 INFO L132 encePairwiseOnDemand]: 136/162 looper letters, 340 selfloop transitions, 147 changer transitions 0/549 dead transitions. [2021-06-13 07:38:25,841 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 549 transitions, 6256 flow [2021-06-13 07:38:25,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-13 07:38:25,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-06-13 07:38:25,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1456 transitions. [2021-06-13 07:38:25,844 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44938271604938274 [2021-06-13 07:38:25,844 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1456 transitions. [2021-06-13 07:38:25,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1456 transitions. [2021-06-13 07:38:25,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:25,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1456 transitions. [2021-06-13 07:38:25,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 72.8) internal successors, (1456), 20 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:25,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 162.0) internal successors, (3402), 21 states have internal predecessors, (3402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:25,851 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 162.0) internal successors, (3402), 21 states have internal predecessors, (3402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:25,851 INFO L185 Difference]: Start difference. First operand has 304 places, 379 transitions, 3763 flow. Second operand 20 states and 1456 transitions. [2021-06-13 07:38:25,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 549 transitions, 6256 flow [2021-06-13 07:38:26,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 549 transitions, 6069 flow, removed 87 selfloop flow, removed 7 redundant places. [2021-06-13 07:38:26,125 INFO L241 Difference]: Finished difference. Result has 324 places, 400 transitions, 4388 flow [2021-06-13 07:38:26,126 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=3626, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4388, PETRI_PLACES=324, PETRI_TRANSITIONS=400} [2021-06-13 07:38:26,126 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 176 predicate places. [2021-06-13 07:38:26,126 INFO L482 AbstractCegarLoop]: Abstraction has has 324 places, 400 transitions, 4388 flow [2021-06-13 07:38:26,127 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:26,127 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:26,127 INFO L255 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] [2021-06-13 07:38:26,127 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-13 07:38:26,127 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:26,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:26,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1536767478, now seen corresponding path program 8 times [2021-06-13 07:38:26,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:26,128 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758802701] [2021-06-13 07:38:26,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:26,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:26,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:26,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:26,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:26,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:26,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:26,341 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-13 07:38:26,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:26,351 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:26,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:26,363 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:38:26,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:26,380 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-13 07:38:26,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 07:38:26,399 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-13 07:38:26,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 07:38:26,424 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-13 07:38:26,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:38:26,444 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-13 07:38:26,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:26,465 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-13 07:38:26,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-13 07:38:26,488 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-13 07:38:26,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-13 07:38:26,499 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-13 07:38:26,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:38:26,518 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:26,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:26,531 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:26,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:26,532 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:38:26,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:38:26,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:26,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:26,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:26,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:26,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:26,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:26,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:26,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:26,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:26,592 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:26,593 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758802701] [2021-06-13 07:38:26,593 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758802701] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:26,593 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:26,593 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-13 07:38:26,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265275323] [2021-06-13 07:38:26,593 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 07:38:26,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:26,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 07:38:26,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-13 07:38:26,595 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 162 [2021-06-13 07:38:26,596 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 400 transitions, 4388 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:26,596 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:26,596 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 162 [2021-06-13 07:38:26,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:28,743 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2021-06-13 07:38:29,109 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2021-06-13 07:38:29,248 INFO L129 PetriNetUnfolder]: 2245/6217 cut-off events. [2021-06-13 07:38:29,248 INFO L130 PetriNetUnfolder]: For 41161/41434 co-relation queries the response was YES. [2021-06-13 07:38:29,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25459 conditions, 6217 events. 2245/6217 cut-off events. For 41161/41434 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 57136 event pairs, 530 based on Foata normal form. 85/6183 useless extension candidates. Maximal degree in co-relation 25373. Up to 2186 conditions per place. [2021-06-13 07:38:29,308 INFO L132 encePairwiseOnDemand]: 138/162 looper letters, 379 selfloop transitions, 128 changer transitions 0/569 dead transitions. [2021-06-13 07:38:29,309 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 569 transitions, 6911 flow [2021-06-13 07:38:29,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-13 07:38:29,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-13 07:38:29,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1524 transitions. [2021-06-13 07:38:29,312 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4479717813051146 [2021-06-13 07:38:29,312 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1524 transitions. [2021-06-13 07:38:29,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1524 transitions. [2021-06-13 07:38:29,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:29,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1524 transitions. [2021-06-13 07:38:29,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 72.57142857142857) internal successors, (1524), 21 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:29,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 162.0) internal successors, (3564), 22 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:29,318 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 162.0) internal successors, (3564), 22 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:29,318 INFO L185 Difference]: Start difference. First operand has 324 places, 400 transitions, 4388 flow. Second operand 21 states and 1524 transitions. [2021-06-13 07:38:29,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 569 transitions, 6911 flow [2021-06-13 07:38:29,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 569 transitions, 6761 flow, removed 15 selfloop flow, removed 8 redundant places. [2021-06-13 07:38:29,614 INFO L241 Difference]: Finished difference. Result has 344 places, 419 transitions, 4900 flow [2021-06-13 07:38:29,615 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=4238, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4900, PETRI_PLACES=344, PETRI_TRANSITIONS=419} [2021-06-13 07:38:29,615 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 196 predicate places. [2021-06-13 07:38:29,615 INFO L482 AbstractCegarLoop]: Abstraction has has 344 places, 419 transitions, 4900 flow [2021-06-13 07:38:29,615 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:29,615 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:29,616 INFO L255 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] [2021-06-13 07:38:29,616 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-13 07:38:29,616 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:29,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:29,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1251589254, now seen corresponding path program 9 times [2021-06-13 07:38:29,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:29,616 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379146074] [2021-06-13 07:38:29,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:29,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:29,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:29,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:29,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:29,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:29,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:29,786 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-13 07:38:29,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:29,796 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:29,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:29,808 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:38:29,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:29,824 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-13 07:38:29,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 07:38:29,840 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-13 07:38:29,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:38:29,858 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-13 07:38:29,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:38:29,875 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-13 07:38:29,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:29,892 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-13 07:38:29,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-13 07:38:29,911 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-13 07:38:29,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-13 07:38:29,924 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-13 07:38:29,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:38:29,943 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:29,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:29,957 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:29,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:29,958 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:38:29,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:38:29,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:29,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:29,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:29,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:29,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:29,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:30,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:30,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:30,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:30,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:30,005 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379146074] [2021-06-13 07:38:30,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379146074] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:30,005 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:30,005 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-13 07:38:30,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118137926] [2021-06-13 07:38:30,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 07:38:30,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:30,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 07:38:30,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-06-13 07:38:30,007 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 162 [2021-06-13 07:38:30,008 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 419 transitions, 4900 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:30,008 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:30,008 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 162 [2021-06-13 07:38:30,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:32,573 INFO L129 PetriNetUnfolder]: 2709/7792 cut-off events. [2021-06-13 07:38:32,573 INFO L130 PetriNetUnfolder]: For 52390/52762 co-relation queries the response was YES. [2021-06-13 07:38:32,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31734 conditions, 7792 events. 2709/7792 cut-off events. For 52390/52762 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 76038 event pairs, 902 based on Foata normal form. 57/7686 useless extension candidates. Maximal degree in co-relation 31640. Up to 1923 conditions per place. [2021-06-13 07:38:32,648 INFO L132 encePairwiseOnDemand]: 138/162 looper letters, 481 selfloop transitions, 156 changer transitions 0/699 dead transitions. [2021-06-13 07:38:32,648 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 699 transitions, 9494 flow [2021-06-13 07:38:32,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-13 07:38:32,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-13 07:38:32,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1523 transitions. [2021-06-13 07:38:32,651 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44767783656672544 [2021-06-13 07:38:32,651 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1523 transitions. [2021-06-13 07:38:32,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1523 transitions. [2021-06-13 07:38:32,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:32,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1523 transitions. [2021-06-13 07:38:32,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 72.52380952380952) internal successors, (1523), 21 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:32,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 162.0) internal successors, (3564), 22 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:32,658 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 162.0) internal successors, (3564), 22 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:32,658 INFO L185 Difference]: Start difference. First operand has 344 places, 419 transitions, 4900 flow. Second operand 21 states and 1523 transitions. [2021-06-13 07:38:32,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 699 transitions, 9494 flow [2021-06-13 07:38:33,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 699 transitions, 9126 flow, removed 29 selfloop flow, removed 10 redundant places. [2021-06-13 07:38:33,055 INFO L241 Difference]: Finished difference. Result has 364 places, 486 transitions, 6372 flow [2021-06-13 07:38:33,055 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=4634, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=6372, PETRI_PLACES=364, PETRI_TRANSITIONS=486} [2021-06-13 07:38:33,056 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 216 predicate places. [2021-06-13 07:38:33,056 INFO L482 AbstractCegarLoop]: Abstraction has has 364 places, 486 transitions, 6372 flow [2021-06-13 07:38:33,056 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:33,056 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:33,056 INFO L255 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] [2021-06-13 07:38:33,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-13 07:38:33,056 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:33,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:33,057 INFO L82 PathProgramCache]: Analyzing trace with hash -968046882, now seen corresponding path program 10 times [2021-06-13 07:38:33,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:33,057 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403819538] [2021-06-13 07:38:33,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:33,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:33,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:33,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:33,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:33,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:33,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:33,203 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-13 07:38:33,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:33,213 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:33,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:33,225 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:38:33,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:33,242 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-13 07:38:33,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 07:38:33,262 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-13 07:38:33,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:38:33,281 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-13 07:38:33,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:38:33,301 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-13 07:38:33,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:33,323 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-13 07:38:33,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-13 07:38:33,414 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-13 07:38:33,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-13 07:38:33,428 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-13 07:38:33,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:38:33,448 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:33,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:33,465 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:33,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:33,466 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:38:33,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:38:33,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:33,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:33,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:33,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:33,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:33,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:33,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:33,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:33,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:33,526 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:33,526 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403819538] [2021-06-13 07:38:33,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403819538] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:33,526 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:33,526 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-13 07:38:33,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197004242] [2021-06-13 07:38:33,527 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 07:38:33,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:33,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 07:38:33,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-13 07:38:33,528 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 162 [2021-06-13 07:38:33,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 486 transitions, 6372 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:33,529 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:33,529 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 162 [2021-06-13 07:38:33,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:36,509 INFO L129 PetriNetUnfolder]: 2716/7799 cut-off events. [2021-06-13 07:38:36,509 INFO L130 PetriNetUnfolder]: For 57369/57784 co-relation queries the response was YES. [2021-06-13 07:38:36,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32875 conditions, 7799 events. 2716/7799 cut-off events. For 57369/57784 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 76046 event pairs, 805 based on Foata normal form. 78/7730 useless extension candidates. Maximal degree in co-relation 32771. Up to 3012 conditions per place. [2021-06-13 07:38:36,574 INFO L132 encePairwiseOnDemand]: 138/162 looper letters, 451 selfloop transitions, 183 changer transitions 0/696 dead transitions. [2021-06-13 07:38:36,574 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 696 transitions, 10038 flow [2021-06-13 07:38:36,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-13 07:38:36,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-13 07:38:36,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1519 transitions. [2021-06-13 07:38:36,587 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44650205761316875 [2021-06-13 07:38:36,587 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1519 transitions. [2021-06-13 07:38:36,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1519 transitions. [2021-06-13 07:38:36,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:36,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1519 transitions. [2021-06-13 07:38:36,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 72.33333333333333) internal successors, (1519), 21 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:36,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 162.0) internal successors, (3564), 22 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:36,593 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 162.0) internal successors, (3564), 22 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:36,593 INFO L185 Difference]: Start difference. First operand has 364 places, 486 transitions, 6372 flow. Second operand 21 states and 1519 transitions. [2021-06-13 07:38:36,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 696 transitions, 10038 flow [2021-06-13 07:38:36,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 379 places, 696 transitions, 9915 flow, removed 47 selfloop flow, removed 5 redundant places. [2021-06-13 07:38:37,003 INFO L241 Difference]: Finished difference. Result has 389 places, 530 transitions, 7785 flow [2021-06-13 07:38:37,003 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=6249, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=486, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=7785, PETRI_PLACES=389, PETRI_TRANSITIONS=530} [2021-06-13 07:38:37,003 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 241 predicate places. [2021-06-13 07:38:37,003 INFO L482 AbstractCegarLoop]: Abstraction has has 389 places, 530 transitions, 7785 flow [2021-06-13 07:38:37,004 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:37,004 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:37,004 INFO L255 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] [2021-06-13 07:38:37,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-13 07:38:37,004 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:37,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:37,004 INFO L82 PathProgramCache]: Analyzing trace with hash 901356886, now seen corresponding path program 11 times [2021-06-13 07:38:37,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:37,004 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874994095] [2021-06-13 07:38:37,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:37,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:37,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:37,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:37,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:37,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:37,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:37,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:37,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:37,145 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-13 07:38:37,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:37,155 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:37,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:37,166 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:37,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:37,178 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-06-13 07:38:37,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:37,191 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-06-13 07:38:37,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 07:38:37,208 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.9 percent of original size [2021-06-13 07:38:37,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-13 07:38:37,220 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-06-13 07:38:37,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 07:38:37,234 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:37,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:37,250 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:37,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:37,251 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:38:37,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:38:37,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:37,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:37,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:37,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:37,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:37,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:37,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:37,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:37,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:37,348 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:37,348 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874994095] [2021-06-13 07:38:37,348 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874994095] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:37,348 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:37,348 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-13 07:38:37,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850072625] [2021-06-13 07:38:37,349 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-13 07:38:37,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:37,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-13 07:38:37,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-06-13 07:38:37,351 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 162 [2021-06-13 07:38:37,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 530 transitions, 7785 flow. Second operand has 15 states, 15 states have (on average 71.73333333333333) internal successors, (1076), 15 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:37,352 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:37,352 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 162 [2021-06-13 07:38:37,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:40,156 INFO L129 PetriNetUnfolder]: 3179/9605 cut-off events. [2021-06-13 07:38:40,156 INFO L130 PetriNetUnfolder]: For 82230/82812 co-relation queries the response was YES. [2021-06-13 07:38:40,229 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40600 conditions, 9605 events. 3179/9605 cut-off events. For 82230/82812 co-relation queries the response was YES. Maximal size of possible extension queue 619. Compared 102282 event pairs, 819 based on Foata normal form. 214/9615 useless extension candidates. Maximal degree in co-relation 40486. Up to 2679 conditions per place. [2021-06-13 07:38:40,325 INFO L132 encePairwiseOnDemand]: 137/162 looper letters, 351 selfloop transitions, 217 changer transitions 0/683 dead transitions. [2021-06-13 07:38:40,325 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 683 transitions, 11148 flow [2021-06-13 07:38:40,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 07:38:40,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-06-13 07:38:40,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1273 transitions. [2021-06-13 07:38:40,327 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.46223674655047203 [2021-06-13 07:38:40,327 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1273 transitions. [2021-06-13 07:38:40,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1273 transitions. [2021-06-13 07:38:40,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:40,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1273 transitions. [2021-06-13 07:38:40,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 74.88235294117646) internal successors, (1273), 17 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:40,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 162.0) internal successors, (2916), 18 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:40,333 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 162.0) internal successors, (2916), 18 states have internal predecessors, (2916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:40,333 INFO L185 Difference]: Start difference. First operand has 389 places, 530 transitions, 7785 flow. Second operand 17 states and 1273 transitions. [2021-06-13 07:38:40,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 683 transitions, 11148 flow [2021-06-13 07:38:40,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 683 transitions, 10989 flow, removed 65 selfloop flow, removed 5 redundant places. [2021-06-13 07:38:40,934 INFO L241 Difference]: Finished difference. Result has 408 places, 579 transitions, 9357 flow [2021-06-13 07:38:40,934 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=7646, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=9357, PETRI_PLACES=408, PETRI_TRANSITIONS=579} [2021-06-13 07:38:40,934 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 260 predicate places. [2021-06-13 07:38:40,934 INFO L482 AbstractCegarLoop]: Abstraction has has 408 places, 579 transitions, 9357 flow [2021-06-13 07:38:40,935 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 71.73333333333333) internal successors, (1076), 15 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:40,935 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:40,935 INFO L255 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] [2021-06-13 07:38:40,935 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-13 07:38:40,935 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:40,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:40,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1600799910, now seen corresponding path program 12 times [2021-06-13 07:38:40,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:40,936 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014331497] [2021-06-13 07:38:40,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:41,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:41,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:41,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:41,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:41,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:41,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:41,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:41,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:41,091 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-13 07:38:41,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:41,102 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:41,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:41,114 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:41,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:41,131 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-06-13 07:38:41,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:41,145 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-06-13 07:38:41,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 07:38:41,157 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-06-13 07:38:41,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:41,173 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-13 07:38:41,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-13 07:38:41,183 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:41,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:41,195 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:38:41,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:41,196 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:38:41,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:38:41,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:41,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:41,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:41,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:41,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:41,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:41,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:41,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:41,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:41,239 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:41,239 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014331497] [2021-06-13 07:38:41,239 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014331497] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:41,239 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:41,239 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-13 07:38:41,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880883922] [2021-06-13 07:38:41,240 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-13 07:38:41,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:41,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-13 07:38:41,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-06-13 07:38:41,242 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 162 [2021-06-13 07:38:41,242 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 579 transitions, 9357 flow. Second operand has 15 states, 15 states have (on average 71.73333333333333) internal successors, (1076), 15 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:41,242 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:41,242 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 162 [2021-06-13 07:38:41,242 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:44,090 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-06-13 07:38:44,383 INFO L129 PetriNetUnfolder]: 3194/9948 cut-off events. [2021-06-13 07:38:44,383 INFO L130 PetriNetUnfolder]: For 103236/103911 co-relation queries the response was YES. [2021-06-13 07:38:44,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45352 conditions, 9948 events. 3194/9948 cut-off events. For 103236/103911 co-relation queries the response was YES. Maximal size of possible extension queue 630. Compared 107967 event pairs, 760 based on Foata normal form. 272/10016 useless extension candidates. Maximal degree in co-relation 45230. Up to 2211 conditions per place. [2021-06-13 07:38:44,537 INFO L132 encePairwiseOnDemand]: 137/162 looper letters, 417 selfloop transitions, 283 changer transitions 0/815 dead transitions. [2021-06-13 07:38:44,537 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 815 transitions, 14115 flow [2021-06-13 07:38:44,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-13 07:38:44,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-13 07:38:44,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1434 transitions. [2021-06-13 07:38:44,541 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.46588693957115007 [2021-06-13 07:38:44,541 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1434 transitions. [2021-06-13 07:38:44,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1434 transitions. [2021-06-13 07:38:44,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:44,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1434 transitions. [2021-06-13 07:38:44,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 75.47368421052632) internal successors, (1434), 19 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:44,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 162.0) internal successors, (3240), 20 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:44,546 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 162.0) internal successors, (3240), 20 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:44,546 INFO L185 Difference]: Start difference. First operand has 408 places, 579 transitions, 9357 flow. Second operand 19 states and 1434 transitions. [2021-06-13 07:38:44,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 815 transitions, 14115 flow [2021-06-13 07:38:45,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 815 transitions, 13936 flow, removed 39 selfloop flow, removed 7 redundant places. [2021-06-13 07:38:45,197 INFO L241 Difference]: Finished difference. Result has 426 places, 655 transitions, 11487 flow [2021-06-13 07:38:45,198 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=9178, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=207, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=11487, PETRI_PLACES=426, PETRI_TRANSITIONS=655} [2021-06-13 07:38:45,198 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 278 predicate places. [2021-06-13 07:38:45,198 INFO L482 AbstractCegarLoop]: Abstraction has has 426 places, 655 transitions, 11487 flow [2021-06-13 07:38:45,199 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 71.73333333333333) internal successors, (1076), 15 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:45,199 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:45,199 INFO L255 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] [2021-06-13 07:38:45,199 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-13 07:38:45,199 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:45,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:45,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1469157808, now seen corresponding path program 13 times [2021-06-13 07:38:45,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:45,200 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907182417] [2021-06-13 07:38:45,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:45,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:45,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:45,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:45,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:45,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:45,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:45,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:45,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:45,364 INFO L142 QuantifierPusher]: treesize reduction 17, result has 59.5 percent of original size [2021-06-13 07:38:45,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:38:45,387 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:38:45,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:45,400 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:38:45,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:45,418 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:38:45,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:45,438 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-13 07:38:45,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 07:38:45,461 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-06-13 07:38:45,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 07:38:45,484 INFO L142 QuantifierPusher]: treesize reduction 16, result has 67.3 percent of original size [2021-06-13 07:38:45,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-13 07:38:45,514 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.4 percent of original size [2021-06-13 07:38:45,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-13 07:38:45,531 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.7 percent of original size [2021-06-13 07:38:45,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 07:38:45,555 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-06-13 07:38:45,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 07:38:45,575 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:38:45,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:45,590 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:38:45,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:45,591 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:38:45,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:38:45,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:45,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:45,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:45,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:45,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:45,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:45,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:45,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:45,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:45,645 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:45,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907182417] [2021-06-13 07:38:45,645 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907182417] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:45,645 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:45,645 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-13 07:38:45,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524510157] [2021-06-13 07:38:45,647 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 07:38:45,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:45,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 07:38:45,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-06-13 07:38:45,648 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 162 [2021-06-13 07:38:45,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 655 transitions, 11487 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:45,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:45,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 162 [2021-06-13 07:38:45,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:50,899 INFO L129 PetriNetUnfolder]: 5014/14990 cut-off events. [2021-06-13 07:38:50,899 INFO L130 PetriNetUnfolder]: For 154067/154784 co-relation queries the response was YES. [2021-06-13 07:38:51,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70014 conditions, 14990 events. 5014/14990 cut-off events. For 154067/154784 co-relation queries the response was YES. Maximal size of possible extension queue 919. Compared 171670 event pairs, 1513 based on Foata normal form. 261/15013 useless extension candidates. Maximal degree in co-relation 69884. Up to 4995 conditions per place. [2021-06-13 07:38:51,088 INFO L132 encePairwiseOnDemand]: 137/162 looper letters, 553 selfloop transitions, 319 changer transitions 0/934 dead transitions. [2021-06-13 07:38:51,088 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 934 transitions, 17471 flow [2021-06-13 07:38:51,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-13 07:38:51,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-13 07:38:51,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1385 transitions. [2021-06-13 07:38:51,090 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44996751137102015 [2021-06-13 07:38:51,090 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1385 transitions. [2021-06-13 07:38:51,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1385 transitions. [2021-06-13 07:38:51,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:51,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1385 transitions. [2021-06-13 07:38:51,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 72.89473684210526) internal successors, (1385), 19 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:51,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 162.0) internal successors, (3240), 20 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:51,094 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 162.0) internal successors, (3240), 20 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:51,094 INFO L185 Difference]: Start difference. First operand has 426 places, 655 transitions, 11487 flow. Second operand 19 states and 1385 transitions. [2021-06-13 07:38:51,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 934 transitions, 17471 flow [2021-06-13 07:38:52,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 934 transitions, 17123 flow, removed 75 selfloop flow, removed 8 redundant places. [2021-06-13 07:38:52,422 INFO L241 Difference]: Finished difference. Result has 447 places, 772 transitions, 14709 flow [2021-06-13 07:38:52,422 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=11189, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=655, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=205, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=14709, PETRI_PLACES=447, PETRI_TRANSITIONS=772} [2021-06-13 07:38:52,423 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 299 predicate places. [2021-06-13 07:38:52,423 INFO L482 AbstractCegarLoop]: Abstraction has has 447 places, 772 transitions, 14709 flow [2021-06-13 07:38:52,423 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:52,423 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:38:52,423 INFO L255 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] [2021-06-13 07:38:52,423 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-13 07:38:52,423 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:38:52,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:38:52,424 INFO L82 PathProgramCache]: Analyzing trace with hash -809061198, now seen corresponding path program 14 times [2021-06-13 07:38:52,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:38:52,424 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986631779] [2021-06-13 07:38:52,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:38:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:38:52,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:52,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:52,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:52,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:52,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:52,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:38:52,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:52,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:38:52,567 INFO L142 QuantifierPusher]: treesize reduction 22, result has 47.6 percent of original size [2021-06-13 07:38:52,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 07:38:52,585 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-13 07:38:52,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:52,596 INFO L142 QuantifierPusher]: treesize reduction 12, result has 65.7 percent of original size [2021-06-13 07:38:52,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:52,617 INFO L142 QuantifierPusher]: treesize reduction 12, result has 65.7 percent of original size [2021-06-13 07:38:52,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:52,635 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-13 07:38:52,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:38:52,654 INFO L142 QuantifierPusher]: treesize reduction 18, result has 57.1 percent of original size [2021-06-13 07:38:52,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 07:38:52,675 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-06-13 07:38:52,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-13 07:38:52,702 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.0 percent of original size [2021-06-13 07:38:52,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-13 07:38:52,719 INFO L142 QuantifierPusher]: treesize reduction 11, result has 71.8 percent of original size [2021-06-13 07:38:52,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 07:38:52,742 INFO L142 QuantifierPusher]: treesize reduction 11, result has 62.1 percent of original size [2021-06-13 07:38:52,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 07:38:52,763 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-13 07:38:52,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:52,778 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-06-13 07:38:52,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:38:52,779 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:38:52,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:38:52,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:52,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:38:52,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:52,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:52,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:52,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:38:52,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:38:52,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:38:52,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:38:52,831 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:38:52,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986631779] [2021-06-13 07:38:52,832 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986631779] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:38:52,832 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:38:52,832 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-13 07:38:52,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523108699] [2021-06-13 07:38:52,832 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 07:38:52,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:38:52,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 07:38:52,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-06-13 07:38:52,834 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 162 [2021-06-13 07:38:52,835 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 772 transitions, 14709 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:52,835 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:38:52,835 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 162 [2021-06-13 07:38:52,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:38:58,305 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-06-13 07:38:58,970 INFO L129 PetriNetUnfolder]: 5016/15257 cut-off events. [2021-06-13 07:38:58,970 INFO L130 PetriNetUnfolder]: For 177137/177789 co-relation queries the response was YES. [2021-06-13 07:38:59,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73928 conditions, 15257 events. 5016/15257 cut-off events. For 177137/177789 co-relation queries the response was YES. Maximal size of possible extension queue 944. Compared 176462 event pairs, 1396 based on Foata normal form. 230/15225 useless extension candidates. Maximal degree in co-relation 73788. Up to 3380 conditions per place. [2021-06-13 07:38:59,155 INFO L132 encePairwiseOnDemand]: 136/162 looper letters, 663 selfloop transitions, 383 changer transitions 0/1108 dead transitions. [2021-06-13 07:38:59,156 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 1108 transitions, 21755 flow [2021-06-13 07:38:59,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-13 07:38:59,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-06-13 07:38:59,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1879 transitions. [2021-06-13 07:38:59,158 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44610636277302945 [2021-06-13 07:38:59,158 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 1879 transitions. [2021-06-13 07:38:59,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 1879 transitions. [2021-06-13 07:38:59,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:38:59,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 1879 transitions. [2021-06-13 07:38:59,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 72.26923076923077) internal successors, (1879), 26 states have internal predecessors, (1879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:59,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 162.0) internal successors, (4374), 27 states have internal predecessors, (4374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:59,165 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 162.0) internal successors, (4374), 27 states have internal predecessors, (4374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:38:59,165 INFO L185 Difference]: Start difference. First operand has 447 places, 772 transitions, 14709 flow. Second operand 26 states and 1879 transitions. [2021-06-13 07:38:59,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 1108 transitions, 21755 flow [2021-06-13 07:39:00,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 1108 transitions, 21480 flow, removed 123 selfloop flow, removed 5 redundant places. [2021-06-13 07:39:00,905 INFO L241 Difference]: Finished difference. Result has 479 places, 904 transitions, 18659 flow [2021-06-13 07:39:00,906 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=14434, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=772, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=251, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=18659, PETRI_PLACES=479, PETRI_TRANSITIONS=904} [2021-06-13 07:39:00,906 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 331 predicate places. [2021-06-13 07:39:00,906 INFO L482 AbstractCegarLoop]: Abstraction has has 479 places, 904 transitions, 18659 flow [2021-06-13 07:39:00,906 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:00,907 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:39:00,907 INFO L255 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] [2021-06-13 07:39:00,907 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-13 07:39:00,907 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:39:00,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:39:00,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1907528114, now seen corresponding path program 15 times [2021-06-13 07:39:00,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:39:00,907 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887627127] [2021-06-13 07:39:00,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:39:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:39:01,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:01,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:39:01,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:01,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:39:01,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:01,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:39:01,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:01,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:39:01,044 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-13 07:39:01,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:39:01,054 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:39:01,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:39:01,065 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:39:01,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:39:01,081 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:39:01,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:39:01,103 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-06-13 07:39:01,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:39:01,122 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-06-13 07:39:01,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 07:39:01,143 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-13 07:39:01,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:39:01,162 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-13 07:39:01,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-13 07:39:01,186 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-13 07:39:01,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-13 07:39:01,199 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-13 07:39:01,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:39:01,221 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:39:01,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:39:01,239 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:39:01,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:39:01,240 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:39:01,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:39:01,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:01,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:39:01,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:01,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:39:01,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:01,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:39:01,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:01,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:39:01,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:39:01,283 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:39:01,284 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887627127] [2021-06-13 07:39:01,284 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887627127] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:39:01,284 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:39:01,284 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-13 07:39:01,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198194077] [2021-06-13 07:39:01,284 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 07:39:01,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:39:01,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 07:39:01,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-13 07:39:01,285 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 162 [2021-06-13 07:39:01,286 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 904 transitions, 18659 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:01,286 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:39:01,286 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 162 [2021-06-13 07:39:01,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:39:02,868 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-06-13 07:39:08,113 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2021-06-13 07:39:08,271 INFO L129 PetriNetUnfolder]: 5014/15303 cut-off events. [2021-06-13 07:39:08,271 INFO L130 PetriNetUnfolder]: For 207446/208203 co-relation queries the response was YES. [2021-06-13 07:39:08,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77694 conditions, 15303 events. 5014/15303 cut-off events. For 207446/208203 co-relation queries the response was YES. Maximal size of possible extension queue 944. Compared 177049 event pairs, 1385 based on Foata normal form. 293/15328 useless extension candidates. Maximal degree in co-relation 77542. Up to 3380 conditions per place. [2021-06-13 07:39:08,470 INFO L132 encePairwiseOnDemand]: 136/162 looper letters, 675 selfloop transitions, 408 changer transitions 0/1145 dead transitions. [2021-06-13 07:39:08,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 505 places, 1145 transitions, 24082 flow [2021-06-13 07:39:08,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-06-13 07:39:08,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-06-13 07:39:08,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 1949 transitions. [2021-06-13 07:39:08,472 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44558756287151347 [2021-06-13 07:39:08,473 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 1949 transitions. [2021-06-13 07:39:08,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 1949 transitions. [2021-06-13 07:39:08,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:39:08,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 1949 transitions. [2021-06-13 07:39:08,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 72.18518518518519) internal successors, (1949), 27 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:08,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 162.0) internal successors, (4536), 28 states have internal predecessors, (4536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:08,478 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 162.0) internal successors, (4536), 28 states have internal predecessors, (4536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:08,478 INFO L185 Difference]: Start difference. First operand has 479 places, 904 transitions, 18659 flow. Second operand 27 states and 1949 transitions. [2021-06-13 07:39:08,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 505 places, 1145 transitions, 24082 flow [2021-06-13 07:39:10,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 1145 transitions, 23585 flow, removed 207 selfloop flow, removed 6 redundant places. [2021-06-13 07:39:10,477 INFO L241 Difference]: Finished difference. Result has 507 places, 943 transitions, 20416 flow [2021-06-13 07:39:10,478 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=18194, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=904, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=369, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=506, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=20416, PETRI_PLACES=507, PETRI_TRANSITIONS=943} [2021-06-13 07:39:10,478 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 359 predicate places. [2021-06-13 07:39:10,478 INFO L482 AbstractCegarLoop]: Abstraction has has 507 places, 943 transitions, 20416 flow [2021-06-13 07:39:10,479 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:10,479 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:39:10,479 INFO L255 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] [2021-06-13 07:39:10,479 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-13 07:39:10,479 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:39:10,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:39:10,479 INFO L82 PathProgramCache]: Analyzing trace with hash 82407852, now seen corresponding path program 16 times [2021-06-13 07:39:10,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:39:10,479 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712947496] [2021-06-13 07:39:10,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:39:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:39:10,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:10,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:39:10,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:10,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:39:10,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:10,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:39:10,651 INFO L142 QuantifierPusher]: treesize reduction 30, result has 33.3 percent of original size [2021-06-13 07:39:10,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:39:10,661 INFO L142 QuantifierPusher]: treesize reduction 13, result has 56.7 percent of original size [2021-06-13 07:39:10,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:39:10,677 INFO L142 QuantifierPusher]: treesize reduction 13, result has 63.9 percent of original size [2021-06-13 07:39:10,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:39:10,695 INFO L142 QuantifierPusher]: treesize reduction 13, result has 63.9 percent of original size [2021-06-13 07:39:10,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:39:10,718 INFO L142 QuantifierPusher]: treesize reduction 13, result has 66.7 percent of original size [2021-06-13 07:39:10,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 07:39:10,740 INFO L142 QuantifierPusher]: treesize reduction 20, result has 62.3 percent of original size [2021-06-13 07:39:10,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-13 07:39:10,766 INFO L142 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size [2021-06-13 07:39:10,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:39:10,789 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-06-13 07:39:10,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-13 07:39:10,833 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-06-13 07:39:10,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:39:10,852 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-06-13 07:39:10,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:39:10,853 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-13 07:39:10,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-13 07:39:10,867 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:39:10,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:39:10,880 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:39:10,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:39:10,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:10,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:39:10,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:10,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:39:10,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:10,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:39:10,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:10,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:39:10,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:39:10,925 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:39:10,925 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712947496] [2021-06-13 07:39:10,926 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712947496] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:39:10,926 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:39:10,926 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-13 07:39:10,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260701876] [2021-06-13 07:39:10,926 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 07:39:10,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:39:10,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 07:39:10,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-06-13 07:39:10,928 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 162 [2021-06-13 07:39:10,929 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 943 transitions, 20416 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:10,929 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:39:10,929 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 162 [2021-06-13 07:39:10,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:39:17,575 INFO L129 PetriNetUnfolder]: 5011/15417 cut-off events. [2021-06-13 07:39:17,576 INFO L130 PetriNetUnfolder]: For 220507/221200 co-relation queries the response was YES. [2021-06-13 07:39:17,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79703 conditions, 15417 events. 5011/15417 cut-off events. For 220507/221200 co-relation queries the response was YES. Maximal size of possible extension queue 951. Compared 178798 event pairs, 1691 based on Foata normal form. 198/15339 useless extension candidates. Maximal degree in co-relation 79543. Up to 3380 conditions per place. [2021-06-13 07:39:17,767 INFO L132 encePairwiseOnDemand]: 138/162 looper letters, 792 selfloop transitions, 331 changer transitions 0/1185 dead transitions. [2021-06-13 07:39:17,767 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 1185 transitions, 26632 flow [2021-06-13 07:39:17,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-13 07:39:17,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-13 07:39:17,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1529 transitions. [2021-06-13 07:39:17,769 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44944150499706054 [2021-06-13 07:39:17,770 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1529 transitions. [2021-06-13 07:39:17,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1529 transitions. [2021-06-13 07:39:17,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:39:17,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1529 transitions. [2021-06-13 07:39:17,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 72.80952380952381) internal successors, (1529), 21 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:17,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 162.0) internal successors, (3564), 22 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:17,774 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 162.0) internal successors, (3564), 22 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:17,774 INFO L185 Difference]: Start difference. First operand has 507 places, 943 transitions, 20416 flow. Second operand 21 states and 1529 transitions. [2021-06-13 07:39:17,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 1185 transitions, 26632 flow [2021-06-13 07:39:19,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 1185 transitions, 26313 flow, removed 82 selfloop flow, removed 12 redundant places. [2021-06-13 07:39:20,018 INFO L241 Difference]: Finished difference. Result has 525 places, 1001 transitions, 22903 flow [2021-06-13 07:39:20,018 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=20097, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=943, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=273, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=627, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=22903, PETRI_PLACES=525, PETRI_TRANSITIONS=1001} [2021-06-13 07:39:20,018 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 377 predicate places. [2021-06-13 07:39:20,019 INFO L482 AbstractCegarLoop]: Abstraction has has 525 places, 1001 transitions, 22903 flow [2021-06-13 07:39:20,019 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:20,019 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:39:20,019 INFO L255 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] [2021-06-13 07:39:20,019 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-13 07:39:20,019 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:39:20,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:39:20,020 INFO L82 PathProgramCache]: Analyzing trace with hash 131719740, now seen corresponding path program 17 times [2021-06-13 07:39:20,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:39:20,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166456397] [2021-06-13 07:39:20,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:39:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:39:20,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:20,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:39:20,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:20,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:39:20,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:20,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:39:20,164 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-13 07:39:20,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:39:20,174 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:39:20,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:39:20,185 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:39:20,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:39:20,202 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:39:20,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:39:20,219 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-13 07:39:20,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 07:39:20,238 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-06-13 07:39:20,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 07:39:20,260 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-13 07:39:20,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:39:20,278 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-13 07:39:20,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-13 07:39:20,302 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-13 07:39:20,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-13 07:39:20,315 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-13 07:39:20,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:39:20,334 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:39:20,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:39:20,351 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:39:20,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:39:20,352 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:39:20,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:39:20,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:20,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:39:20,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:20,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:39:20,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:20,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:39:20,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:20,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:39:20,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:39:20,411 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:39:20,411 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166456397] [2021-06-13 07:39:20,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166456397] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:39:20,411 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:39:20,411 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-13 07:39:20,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755129354] [2021-06-13 07:39:20,412 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 07:39:20,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:39:20,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 07:39:20,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-13 07:39:20,416 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 162 [2021-06-13 07:39:20,416 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 1001 transitions, 22903 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:20,416 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:39:20,416 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 162 [2021-06-13 07:39:20,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:39:27,630 INFO L129 PetriNetUnfolder]: 5019/15418 cut-off events. [2021-06-13 07:39:27,630 INFO L130 PetriNetUnfolder]: For 232918/233693 co-relation queries the response was YES. [2021-06-13 07:39:27,828 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80700 conditions, 15418 events. 5019/15418 cut-off events. For 232918/233693 co-relation queries the response was YES. Maximal size of possible extension queue 945. Compared 178682 event pairs, 1541 based on Foata normal form. 282/15456 useless extension candidates. Maximal degree in co-relation 80530. Up to 5074 conditions per place. [2021-06-13 07:39:27,873 INFO L132 encePairwiseOnDemand]: 137/162 looper letters, 696 selfloop transitions, 407 changer transitions 0/1165 dead transitions. [2021-06-13 07:39:27,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 1165 transitions, 27142 flow [2021-06-13 07:39:27,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-13 07:39:27,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-06-13 07:39:27,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1455 transitions. [2021-06-13 07:39:27,874 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44907407407407407 [2021-06-13 07:39:27,874 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1455 transitions. [2021-06-13 07:39:27,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1455 transitions. [2021-06-13 07:39:27,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:39:27,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1455 transitions. [2021-06-13 07:39:27,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 72.75) internal successors, (1455), 20 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:27,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 162.0) internal successors, (3402), 21 states have internal predecessors, (3402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:27,879 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 162.0) internal successors, (3402), 21 states have internal predecessors, (3402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:27,879 INFO L185 Difference]: Start difference. First operand has 525 places, 1001 transitions, 22903 flow. Second operand 20 states and 1455 transitions. [2021-06-13 07:39:27,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 1165 transitions, 27142 flow [2021-06-13 07:39:30,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 1165 transitions, 26913 flow, removed 100 selfloop flow, removed 5 redundant places. [2021-06-13 07:39:30,537 INFO L241 Difference]: Finished difference. Result has 544 places, 1021 transitions, 24063 flow [2021-06-13 07:39:30,538 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=22674, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1001, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=387, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=594, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=24063, PETRI_PLACES=544, PETRI_TRANSITIONS=1021} [2021-06-13 07:39:30,538 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 396 predicate places. [2021-06-13 07:39:30,538 INFO L482 AbstractCegarLoop]: Abstraction has has 544 places, 1021 transitions, 24063 flow [2021-06-13 07:39:30,538 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:30,538 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:39:30,538 INFO L255 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] [2021-06-13 07:39:30,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-13 07:39:30,539 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:39:30,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:39:30,539 INFO L82 PathProgramCache]: Analyzing trace with hash 199148666, now seen corresponding path program 18 times [2021-06-13 07:39:30,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:39:30,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381196931] [2021-06-13 07:39:30,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:39:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:39:30,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:30,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:39:30,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:30,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:39:30,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:30,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:39:30,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:30,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:39:30,708 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-13 07:39:30,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:39:30,718 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:39:30,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:39:30,729 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:39:30,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:39:30,741 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-06-13 07:39:30,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 07:39:30,753 INFO L142 QuantifierPusher]: treesize reduction 13, result has 51.9 percent of original size [2021-06-13 07:39:30,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 07:39:30,765 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-06-13 07:39:30,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:39:30,781 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-13 07:39:30,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-13 07:39:30,790 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:39:30,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:39:30,803 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:39:30,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:39:30,805 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:39:30,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:39:30,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:30,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:39:30,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:30,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:39:30,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:30,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:39:30,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:30,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:39:30,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:39:30,848 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:39:30,848 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381196931] [2021-06-13 07:39:30,849 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381196931] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:39:30,849 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:39:30,849 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-06-13 07:39:30,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487462504] [2021-06-13 07:39:30,849 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-13 07:39:30,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:39:30,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-13 07:39:30,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-06-13 07:39:30,851 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 162 [2021-06-13 07:39:30,851 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 1021 transitions, 24063 flow. Second operand has 15 states, 15 states have (on average 71.73333333333333) internal successors, (1076), 15 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:30,851 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:39:30,852 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 162 [2021-06-13 07:39:30,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:39:37,381 INFO L129 PetriNetUnfolder]: 4600/14970 cut-off events. [2021-06-13 07:39:37,381 INFO L130 PetriNetUnfolder]: For 254333/255255 co-relation queries the response was YES. [2021-06-13 07:39:37,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79486 conditions, 14970 events. 4600/14970 cut-off events. For 254333/255255 co-relation queries the response was YES. Maximal size of possible extension queue 931. Compared 177374 event pairs, 1640 based on Foata normal form. 299/14981 useless extension candidates. Maximal degree in co-relation 79310. Up to 4531 conditions per place. [2021-06-13 07:39:37,596 INFO L132 encePairwiseOnDemand]: 139/162 looper letters, 702 selfloop transitions, 344 changer transitions 0/1213 dead transitions. [2021-06-13 07:39:37,597 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 1213 transitions, 29496 flow [2021-06-13 07:39:37,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-13 07:39:37,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-13 07:39:37,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1427 transitions. [2021-06-13 07:39:37,598 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4636127355425601 [2021-06-13 07:39:37,598 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1427 transitions. [2021-06-13 07:39:37,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1427 transitions. [2021-06-13 07:39:37,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:39:37,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1427 transitions. [2021-06-13 07:39:37,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 75.10526315789474) internal successors, (1427), 19 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:37,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 162.0) internal successors, (3240), 20 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:37,602 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 162.0) internal successors, (3240), 20 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:37,602 INFO L185 Difference]: Start difference. First operand has 544 places, 1021 transitions, 24063 flow. Second operand 19 states and 1427 transitions. [2021-06-13 07:39:37,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 1213 transitions, 29496 flow [2021-06-13 07:39:40,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 556 places, 1213 transitions, 29185 flow, removed 111 selfloop flow, removed 6 redundant places. [2021-06-13 07:39:40,145 INFO L241 Difference]: Finished difference. Result has 564 places, 1062 transitions, 25846 flow [2021-06-13 07:39:40,146 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=23758, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1021, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=303, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=689, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=25846, PETRI_PLACES=564, PETRI_TRANSITIONS=1062} [2021-06-13 07:39:40,146 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 416 predicate places. [2021-06-13 07:39:40,146 INFO L482 AbstractCegarLoop]: Abstraction has has 564 places, 1062 transitions, 25846 flow [2021-06-13 07:39:40,147 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 71.73333333333333) internal successors, (1076), 15 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:40,147 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:39:40,147 INFO L255 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] [2021-06-13 07:39:40,147 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-13 07:39:40,147 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:39:40,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:39:40,147 INFO L82 PathProgramCache]: Analyzing trace with hash 88889024, now seen corresponding path program 19 times [2021-06-13 07:39:40,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:39:40,148 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757040979] [2021-06-13 07:39:40,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:39:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:39:40,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:40,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:39:40,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:40,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:39:40,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:40,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:39:40,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:40,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:39:40,280 INFO L142 QuantifierPusher]: treesize reduction 17, result has 59.5 percent of original size [2021-06-13 07:39:40,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:39:40,300 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:39:40,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:39:40,312 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:39:40,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:39:40,328 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:39:40,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:39:40,345 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-13 07:39:40,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 07:39:40,366 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-13 07:39:40,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:39:40,385 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-13 07:39:40,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:39:40,401 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-13 07:39:40,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-13 07:39:40,433 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-13 07:39:40,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-13 07:39:40,448 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-06-13 07:39:40,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:39:40,467 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:39:40,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:39:40,484 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:39:40,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:39:40,485 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:39:40,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:39:40,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:40,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:39:40,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:40,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:39:40,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:40,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:39:40,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:40,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:39:40,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:39:40,541 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:39:40,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757040979] [2021-06-13 07:39:40,541 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757040979] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:39:40,541 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:39:40,541 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-13 07:39:40,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788463028] [2021-06-13 07:39:40,542 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 07:39:40,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:39:40,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 07:39:40,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-06-13 07:39:40,543 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 162 [2021-06-13 07:39:40,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 1062 transitions, 25846 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:40,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:39:40,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 162 [2021-06-13 07:39:40,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:39:47,962 INFO L129 PetriNetUnfolder]: 5033/15716 cut-off events. [2021-06-13 07:39:47,963 INFO L130 PetriNetUnfolder]: For 275601/276445 co-relation queries the response was YES. [2021-06-13 07:39:48,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85617 conditions, 15716 events. 5033/15716 cut-off events. For 275601/276445 co-relation queries the response was YES. Maximal size of possible extension queue 957. Compared 183472 event pairs, 1541 based on Foata normal form. 278/15740 useless extension candidates. Maximal degree in co-relation 85432. Up to 4664 conditions per place. [2021-06-13 07:39:48,214 INFO L132 encePairwiseOnDemand]: 138/162 looper letters, 766 selfloop transitions, 408 changer transitions 0/1236 dead transitions. [2021-06-13 07:39:48,214 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 1236 transitions, 31111 flow [2021-06-13 07:39:48,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-13 07:39:48,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-13 07:39:48,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1521 transitions. [2021-06-13 07:39:48,215 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4470899470899471 [2021-06-13 07:39:48,215 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1521 transitions. [2021-06-13 07:39:48,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1521 transitions. [2021-06-13 07:39:48,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:39:48,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1521 transitions. [2021-06-13 07:39:48,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 72.42857142857143) internal successors, (1521), 21 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:48,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 162.0) internal successors, (3564), 22 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:48,223 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 162.0) internal successors, (3564), 22 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:48,223 INFO L185 Difference]: Start difference. First operand has 564 places, 1062 transitions, 25846 flow. Second operand 21 states and 1521 transitions. [2021-06-13 07:39:48,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 1236 transitions, 31111 flow [2021-06-13 07:39:51,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 576 places, 1236 transitions, 30568 flow, removed 180 selfloop flow, removed 8 redundant places. [2021-06-13 07:39:51,282 INFO L241 Difference]: Finished difference. Result has 586 places, 1098 transitions, 27872 flow [2021-06-13 07:39:51,283 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=25481, PETRI_DIFFERENCE_MINUEND_PLACES=556, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1062, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=372, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=660, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=27872, PETRI_PLACES=586, PETRI_TRANSITIONS=1098} [2021-06-13 07:39:51,283 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 438 predicate places. [2021-06-13 07:39:51,284 INFO L482 AbstractCegarLoop]: Abstraction has has 586 places, 1098 transitions, 27872 flow [2021-06-13 07:39:51,284 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:51,284 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:39:51,284 INFO L255 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] [2021-06-13 07:39:51,284 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-13 07:39:51,284 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:39:51,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:39:51,285 INFO L82 PathProgramCache]: Analyzing trace with hash -253401934, now seen corresponding path program 20 times [2021-06-13 07:39:51,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:39:51,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528545010] [2021-06-13 07:39:51,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:39:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:39:51,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:51,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:39:51,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:51,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:39:51,446 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:51,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:39:51,457 INFO L142 QuantifierPusher]: treesize reduction 17, result has 59.5 percent of original size [2021-06-13 07:39:51,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:39:51,479 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:39:51,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:39:51,491 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:39:51,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:39:51,509 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:39:51,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:39:51,524 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-13 07:39:51,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 07:39:51,543 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-13 07:39:51,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:39:51,559 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-13 07:39:51,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:39:51,575 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-13 07:39:51,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-13 07:39:51,595 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-13 07:39:51,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-13 07:39:51,614 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:39:51,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:39:51,627 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:39:51,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:39:51,628 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:39:51,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:39:51,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:51,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:39:51,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:51,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:39:51,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:51,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:39:51,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:39:51,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:39:51,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:39:51,673 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:39:51,673 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528545010] [2021-06-13 07:39:51,673 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528545010] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:39:51,673 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:39:51,673 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-13 07:39:51,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639880778] [2021-06-13 07:39:51,674 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 07:39:51,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:39:51,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 07:39:51,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-06-13 07:39:51,676 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 162 [2021-06-13 07:39:51,676 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 586 places, 1098 transitions, 27872 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:51,676 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:39:51,676 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 162 [2021-06-13 07:39:51,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:39:52,852 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-06-13 07:39:59,476 INFO L129 PetriNetUnfolder]: 5024/15833 cut-off events. [2021-06-13 07:39:59,477 INFO L130 PetriNetUnfolder]: For 301845/302601 co-relation queries the response was YES. [2021-06-13 07:39:59,663 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87060 conditions, 15833 events. 5024/15833 cut-off events. For 301845/302601 co-relation queries the response was YES. Maximal size of possible extension queue 969. Compared 185688 event pairs, 1703 based on Foata normal form. 184/15725 useless extension candidates. Maximal degree in co-relation 86866. Up to 3578 conditions per place. [2021-06-13 07:39:59,702 INFO L132 encePairwiseOnDemand]: 138/162 looper letters, 933 selfloop transitions, 373 changer transitions 0/1368 dead transitions. [2021-06-13 07:39:59,702 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 606 places, 1368 transitions, 35326 flow [2021-06-13 07:39:59,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-13 07:39:59,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-13 07:39:59,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1528 transitions. [2021-06-13 07:39:59,704 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44914756025867136 [2021-06-13 07:39:59,704 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1528 transitions. [2021-06-13 07:39:59,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1528 transitions. [2021-06-13 07:39:59,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:39:59,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1528 transitions. [2021-06-13 07:39:59,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 72.76190476190476) internal successors, (1528), 21 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:59,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 162.0) internal successors, (3564), 22 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:59,708 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 162.0) internal successors, (3564), 22 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:39:59,708 INFO L185 Difference]: Start difference. First operand has 586 places, 1098 transitions, 27872 flow. Second operand 21 states and 1528 transitions. [2021-06-13 07:39:59,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 606 places, 1368 transitions, 35326 flow [2021-06-13 07:40:02,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 597 places, 1368 transitions, 34748 flow, removed 107 selfloop flow, removed 9 redundant places. [2021-06-13 07:40:02,615 INFO L241 Difference]: Finished difference. Result has 605 places, 1145 transitions, 29999 flow [2021-06-13 07:40:02,616 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=27294, PETRI_DIFFERENCE_MINUEND_PLACES=577, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1098, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=332, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=743, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=29999, PETRI_PLACES=605, PETRI_TRANSITIONS=1145} [2021-06-13 07:40:02,616 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 457 predicate places. [2021-06-13 07:40:02,616 INFO L482 AbstractCegarLoop]: Abstraction has has 605 places, 1145 transitions, 29999 flow [2021-06-13 07:40:02,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:02,617 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:40:02,617 INFO L255 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] [2021-06-13 07:40:02,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-13 07:40:02,617 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:40:02,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:40:02,617 INFO L82 PathProgramCache]: Analyzing trace with hash 303328720, now seen corresponding path program 21 times [2021-06-13 07:40:02,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:40:02,617 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657716211] [2021-06-13 07:40:02,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:40:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:40:02,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:02,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:40:02,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:02,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:40:02,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:02,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:40:02,742 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-13 07:40:02,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:40:02,752 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:40:02,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:40:02,763 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:40:02,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:40:02,784 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:40:02,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:40:02,801 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-13 07:40:02,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 07:40:02,818 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-13 07:40:02,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:40:02,837 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-13 07:40:02,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:40:02,859 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-13 07:40:02,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-13 07:40:02,888 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-13 07:40:02,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-13 07:40:02,911 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:40:02,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:40:02,929 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:40:02,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:40:02,930 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:40:02,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:40:02,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:02,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:40:02,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:02,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:40:02,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:02,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:40:02,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:02,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:40:02,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:40:02,991 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:40:02,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657716211] [2021-06-13 07:40:02,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657716211] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:40:02,991 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:40:02,992 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-13 07:40:02,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540365576] [2021-06-13 07:40:02,992 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 07:40:02,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:40:02,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 07:40:02,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-13 07:40:02,994 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 162 [2021-06-13 07:40:02,994 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 605 places, 1145 transitions, 29999 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:02,994 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:40:02,995 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 162 [2021-06-13 07:40:02,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:40:04,811 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-06-13 07:40:11,390 INFO L129 PetriNetUnfolder]: 5024/15818 cut-off events. [2021-06-13 07:40:11,390 INFO L130 PetriNetUnfolder]: For 317751/318544 co-relation queries the response was YES. [2021-06-13 07:40:11,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87902 conditions, 15818 events. 5024/15818 cut-off events. For 317751/318544 co-relation queries the response was YES. Maximal size of possible extension queue 967. Compared 185399 event pairs, 1674 based on Foata normal form. 233/15768 useless extension candidates. Maximal degree in co-relation 87699. Up to 3578 conditions per place. [2021-06-13 07:40:11,802 INFO L132 encePairwiseOnDemand]: 138/162 looper letters, 908 selfloop transitions, 394 changer transitions 0/1364 dead transitions. [2021-06-13 07:40:11,802 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 1364 transitions, 35870 flow [2021-06-13 07:40:11,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-13 07:40:11,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-13 07:40:11,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1525 transitions. [2021-06-13 07:40:11,804 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44826572604350384 [2021-06-13 07:40:11,804 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1525 transitions. [2021-06-13 07:40:11,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1525 transitions. [2021-06-13 07:40:11,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:40:11,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1525 transitions. [2021-06-13 07:40:11,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 72.61904761904762) internal successors, (1525), 21 states have internal predecessors, (1525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:11,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 162.0) internal successors, (3564), 22 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:11,809 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 162.0) internal successors, (3564), 22 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:11,809 INFO L185 Difference]: Start difference. First operand has 605 places, 1145 transitions, 29999 flow. Second operand 21 states and 1525 transitions. [2021-06-13 07:40:11,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 1364 transitions, 35870 flow [2021-06-13 07:40:15,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 617 places, 1364 transitions, 35251 flow, removed 119 selfloop flow, removed 8 redundant places. [2021-06-13 07:40:15,101 INFO L241 Difference]: Finished difference. Result has 623 places, 1164 transitions, 30711 flow [2021-06-13 07:40:15,102 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=29380, PETRI_DIFFERENCE_MINUEND_PLACES=597, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=375, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=751, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=30711, PETRI_PLACES=623, PETRI_TRANSITIONS=1164} [2021-06-13 07:40:15,103 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 475 predicate places. [2021-06-13 07:40:15,103 INFO L482 AbstractCegarLoop]: Abstraction has has 623 places, 1164 transitions, 30711 flow [2021-06-13 07:40:15,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:15,103 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:40:15,103 INFO L255 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] [2021-06-13 07:40:15,103 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-13 07:40:15,103 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:40:15,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:40:15,103 INFO L82 PathProgramCache]: Analyzing trace with hash 2064846962, now seen corresponding path program 22 times [2021-06-13 07:40:15,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:40:15,104 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762528677] [2021-06-13 07:40:15,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:40:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:40:15,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:15,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:40:15,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:15,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:40:15,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:15,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:40:15,226 INFO L142 QuantifierPusher]: treesize reduction 17, result has 59.5 percent of original size [2021-06-13 07:40:15,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:40:15,246 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:40:15,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:40:15,257 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:40:15,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:40:15,274 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-13 07:40:15,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 07:40:15,289 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-13 07:40:15,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 07:40:15,306 INFO L142 QuantifierPusher]: treesize reduction 14, result has 61.1 percent of original size [2021-06-13 07:40:15,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 07:40:15,324 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-13 07:40:15,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:40:15,345 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-13 07:40:15,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-13 07:40:15,369 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-13 07:40:15,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-13 07:40:15,380 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-06-13 07:40:15,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:40:15,396 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:40:15,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:40:15,410 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:40:15,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:40:15,411 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:40:15,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:40:15,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:15,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:40:15,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:15,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:40:15,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:15,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:40:15,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:15,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:40:15,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:40:15,459 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:40:15,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762528677] [2021-06-13 07:40:15,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762528677] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:40:15,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:40:15,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-13 07:40:15,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679698285] [2021-06-13 07:40:15,460 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 07:40:15,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:40:15,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 07:40:15,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-06-13 07:40:15,461 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 162 [2021-06-13 07:40:15,461 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 623 places, 1164 transitions, 30711 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:15,461 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:40:15,462 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 162 [2021-06-13 07:40:15,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:40:23,949 INFO L129 PetriNetUnfolder]: 5018/15864 cut-off events. [2021-06-13 07:40:23,949 INFO L130 PetriNetUnfolder]: For 333889/334764 co-relation queries the response was YES. [2021-06-13 07:40:24,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88697 conditions, 15864 events. 5018/15864 cut-off events. For 333889/334764 co-relation queries the response was YES. Maximal size of possible extension queue 944. Compared 185727 event pairs, 1895 based on Foata normal form. 170/15738 useless extension candidates. Maximal degree in co-relation 88488. Up to 5622 conditions per place. [2021-06-13 07:40:24,441 INFO L132 encePairwiseOnDemand]: 137/162 looper letters, 950 selfloop transitions, 404 changer transitions 0/1416 dead transitions. [2021-06-13 07:40:24,441 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 644 places, 1416 transitions, 37589 flow [2021-06-13 07:40:24,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-13 07:40:24,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-06-13 07:40:24,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1603 transitions. [2021-06-13 07:40:24,443 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4497755331088664 [2021-06-13 07:40:24,443 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1603 transitions. [2021-06-13 07:40:24,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1603 transitions. [2021-06-13 07:40:24,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:40:24,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1603 transitions. [2021-06-13 07:40:24,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 72.86363636363636) internal successors, (1603), 22 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:24,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 162.0) internal successors, (3726), 23 states have internal predecessors, (3726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:24,447 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 162.0) internal successors, (3726), 23 states have internal predecessors, (3726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:24,447 INFO L185 Difference]: Start difference. First operand has 623 places, 1164 transitions, 30711 flow. Second operand 22 states and 1603 transitions. [2021-06-13 07:40:24,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 644 places, 1416 transitions, 37589 flow [2021-06-13 07:40:27,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 635 places, 1416 transitions, 36990 flow, removed 124 selfloop flow, removed 9 redundant places. [2021-06-13 07:40:27,959 INFO L241 Difference]: Finished difference. Result has 645 places, 1206 transitions, 32483 flow [2021-06-13 07:40:27,961 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=30127, PETRI_DIFFERENCE_MINUEND_PLACES=614, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=362, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=767, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=32483, PETRI_PLACES=645, PETRI_TRANSITIONS=1206} [2021-06-13 07:40:27,961 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 497 predicate places. [2021-06-13 07:40:27,961 INFO L482 AbstractCegarLoop]: Abstraction has has 645 places, 1206 transitions, 32483 flow [2021-06-13 07:40:27,961 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:27,962 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:40:27,962 INFO L255 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] [2021-06-13 07:40:27,962 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-13 07:40:27,962 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:40:27,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:40:27,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1619662450, now seen corresponding path program 23 times [2021-06-13 07:40:27,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:40:27,962 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376873887] [2021-06-13 07:40:27,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:40:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:40:28,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:28,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:40:28,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:28,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:40:28,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:28,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:40:28,090 INFO L142 QuantifierPusher]: treesize reduction 17, result has 59.5 percent of original size [2021-06-13 07:40:28,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:40:28,110 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:40:28,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:40:28,124 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:40:28,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:40:28,140 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-13 07:40:28,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 07:40:28,155 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-13 07:40:28,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 07:40:28,172 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-13 07:40:28,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:40:28,191 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-13 07:40:28,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:40:28,211 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-06-13 07:40:28,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-06-13 07:40:28,238 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-13 07:40:28,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-13 07:40:28,254 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-06-13 07:40:28,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:40:28,277 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:40:28,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:40:28,292 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:40:28,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:40:28,293 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:40:28,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:40:28,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:28,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:40:28,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:28,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:40:28,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:28,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:40:28,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:28,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:40:28,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:40:28,342 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:40:28,342 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376873887] [2021-06-13 07:40:28,342 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376873887] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:40:28,342 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:40:28,342 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-13 07:40:28,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815679302] [2021-06-13 07:40:28,342 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 07:40:28,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:40:28,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 07:40:28,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-06-13 07:40:28,344 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 162 [2021-06-13 07:40:28,344 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 645 places, 1206 transitions, 32483 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:28,344 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:40:28,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 162 [2021-06-13 07:40:28,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:40:35,941 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2021-06-13 07:40:37,096 INFO L129 PetriNetUnfolder]: 5017/15873 cut-off events. [2021-06-13 07:40:37,096 INFO L130 PetriNetUnfolder]: For 351006/351894 co-relation queries the response was YES. [2021-06-13 07:40:37,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89682 conditions, 15873 events. 5017/15873 cut-off events. For 351006/351894 co-relation queries the response was YES. Maximal size of possible extension queue 945. Compared 185823 event pairs, 1930 based on Foata normal form. 175/15761 useless extension candidates. Maximal degree in co-relation 89464. Up to 5622 conditions per place. [2021-06-13 07:40:37,411 INFO L132 encePairwiseOnDemand]: 138/162 looper letters, 939 selfloop transitions, 410 changer transitions 0/1411 dead transitions. [2021-06-13 07:40:37,411 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 665 places, 1411 transitions, 38595 flow [2021-06-13 07:40:37,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-13 07:40:37,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-06-13 07:40:37,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1520 transitions. [2021-06-13 07:40:37,412 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4467960023515579 [2021-06-13 07:40:37,412 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1520 transitions. [2021-06-13 07:40:37,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1520 transitions. [2021-06-13 07:40:37,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:40:37,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1520 transitions. [2021-06-13 07:40:37,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 72.38095238095238) internal successors, (1520), 21 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:37,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 162.0) internal successors, (3564), 22 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:37,416 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 162.0) internal successors, (3564), 22 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:37,416 INFO L185 Difference]: Start difference. First operand has 645 places, 1206 transitions, 32483 flow. Second operand 21 states and 1520 transitions. [2021-06-13 07:40:37,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 665 places, 1411 transitions, 38595 flow [2021-06-13 07:40:40,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 655 places, 1411 transitions, 38124 flow, removed 152 selfloop flow, removed 10 redundant places. [2021-06-13 07:40:40,885 INFO L241 Difference]: Finished difference. Result has 662 places, 1226 transitions, 33700 flow [2021-06-13 07:40:40,886 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=32052, PETRI_DIFFERENCE_MINUEND_PLACES=635, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=390, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=798, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=33700, PETRI_PLACES=662, PETRI_TRANSITIONS=1226} [2021-06-13 07:40:40,886 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 514 predicate places. [2021-06-13 07:40:40,886 INFO L482 AbstractCegarLoop]: Abstraction has has 662 places, 1226 transitions, 33700 flow [2021-06-13 07:40:40,886 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:40,886 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:40:40,887 INFO L255 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] [2021-06-13 07:40:40,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-13 07:40:40,887 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:40:40,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:40:40,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1183890522, now seen corresponding path program 24 times [2021-06-13 07:40:40,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:40:40,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604145620] [2021-06-13 07:40:40,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:40:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:40:41,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:41,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:40:41,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:41,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:40:41,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:41,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:40:41,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:41,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:40:41,021 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-13 07:40:41,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:40:41,031 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:40:41,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:40:41,041 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:40:41,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:40:41,057 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-13 07:40:41,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 07:40:41,124 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-13 07:40:41,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 07:40:41,144 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-06-13 07:40:41,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 07:40:41,164 INFO L142 QuantifierPusher]: treesize reduction 16, result has 67.3 percent of original size [2021-06-13 07:40:41,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-06-13 07:40:41,188 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.4 percent of original size [2021-06-13 07:40:41,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-13 07:40:41,203 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.7 percent of original size [2021-06-13 07:40:41,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 07:40:41,223 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-06-13 07:40:41,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 07:40:41,250 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:40:41,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:40:41,263 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:40:41,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:40:41,264 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:40:41,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:40:41,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:41,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:40:41,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:41,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:40:41,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:41,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:40:41,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:41,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:40:41,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:40:41,313 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:40:41,314 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604145620] [2021-06-13 07:40:41,314 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604145620] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:40:41,314 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:40:41,314 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-13 07:40:41,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475990898] [2021-06-13 07:40:41,314 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 07:40:41,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:40:41,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 07:40:41,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-06-13 07:40:41,316 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 162 [2021-06-13 07:40:41,317 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 662 places, 1226 transitions, 33700 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:41,317 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:40:41,317 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 162 [2021-06-13 07:40:41,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:40:51,228 INFO L129 PetriNetUnfolder]: 5484/17294 cut-off events. [2021-06-13 07:40:51,228 INFO L130 PetriNetUnfolder]: For 379406/380429 co-relation queries the response was YES. [2021-06-13 07:40:51,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97999 conditions, 17294 events. 5484/17294 cut-off events. For 379406/380429 co-relation queries the response was YES. Maximal size of possible extension queue 1032. Compared 205613 event pairs, 1937 based on Foata normal form. 355/17396 useless extension candidates. Maximal degree in co-relation 97777. Up to 8770 conditions per place. [2021-06-13 07:40:51,579 INFO L132 encePairwiseOnDemand]: 137/162 looper letters, 852 selfloop transitions, 470 changer transitions 0/1384 dead transitions. [2021-06-13 07:40:51,580 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 680 places, 1384 transitions, 39647 flow [2021-06-13 07:40:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-13 07:40:51,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-13 07:40:51,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1377 transitions. [2021-06-13 07:40:51,581 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2021-06-13 07:40:51,581 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1377 transitions. [2021-06-13 07:40:51,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1377 transitions. [2021-06-13 07:40:51,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:40:51,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1377 transitions. [2021-06-13 07:40:51,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 72.47368421052632) internal successors, (1377), 19 states have internal predecessors, (1377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:51,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 162.0) internal successors, (3240), 20 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:51,584 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 162.0) internal successors, (3240), 20 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:51,585 INFO L185 Difference]: Start difference. First operand has 662 places, 1226 transitions, 33700 flow. Second operand 19 states and 1377 transitions. [2021-06-13 07:40:51,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 680 places, 1384 transitions, 39647 flow [2021-06-13 07:40:55,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 672 places, 1384 transitions, 39244 flow, removed 97 selfloop flow, removed 8 redundant places. [2021-06-13 07:40:55,735 INFO L241 Difference]: Finished difference. Result has 682 places, 1294 transitions, 37073 flow [2021-06-13 07:40:55,736 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=33311, PETRI_DIFFERENCE_MINUEND_PLACES=654, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=403, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=768, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=37073, PETRI_PLACES=682, PETRI_TRANSITIONS=1294} [2021-06-13 07:40:55,737 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 534 predicate places. [2021-06-13 07:40:55,737 INFO L482 AbstractCegarLoop]: Abstraction has has 682 places, 1294 transitions, 37073 flow [2021-06-13 07:40:55,737 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:55,737 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:40:55,737 INFO L255 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] [2021-06-13 07:40:55,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-13 07:40:55,737 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:40:55,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:40:55,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1271200574, now seen corresponding path program 25 times [2021-06-13 07:40:55,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:40:55,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771243326] [2021-06-13 07:40:55,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:40:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:40:55,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:55,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:40:55,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:55,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:40:55,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:55,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:40:55,857 INFO L142 QuantifierPusher]: treesize reduction 17, result has 59.5 percent of original size [2021-06-13 07:40:55,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:40:55,876 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:40:55,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:40:55,887 INFO L142 QuantifierPusher]: treesize reduction 10, result has 61.5 percent of original size [2021-06-13 07:40:55,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 07:40:55,902 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-06-13 07:40:55,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-13 07:40:55,917 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-13 07:40:55,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:40:55,934 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-06-13 07:40:55,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-06-13 07:40:55,952 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-06-13 07:40:55,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:40:55,967 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-06-13 07:40:55,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-06-13 07:40:55,986 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-06-13 07:40:55,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-06-13 07:40:56,002 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:40:56,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:40:56,015 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-06-13 07:40:56,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:40:56,016 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:40:56,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:40:56,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:56,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:40:56,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:56,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:40:56,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:56,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:40:56,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:40:56,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:40:56,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:40:56,071 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:40:56,071 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771243326] [2021-06-13 07:40:56,071 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771243326] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:40:56,071 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:40:56,071 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-13 07:40:56,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608353355] [2021-06-13 07:40:56,071 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 07:40:56,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:40:56,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 07:40:56,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-06-13 07:40:56,073 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 162 [2021-06-13 07:40:56,073 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 682 places, 1294 transitions, 37073 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:40:56,073 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:40:56,073 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 162 [2021-06-13 07:40:56,073 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:40:58,175 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-06-13 07:41:05,857 INFO L129 PetriNetUnfolder]: 5473/17470 cut-off events. [2021-06-13 07:41:05,858 INFO L130 PetriNetUnfolder]: For 422644/423527 co-relation queries the response was YES. [2021-06-13 07:41:06,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100095 conditions, 17470 events. 5473/17470 cut-off events. For 422644/423527 co-relation queries the response was YES. Maximal size of possible extension queue 1028. Compared 207908 event pairs, 2520 based on Foata normal form. 146/17283 useless extension candidates. Maximal degree in co-relation 99864. Up to 7886 conditions per place. [2021-06-13 07:41:06,274 INFO L132 encePairwiseOnDemand]: 139/162 looper letters, 937 selfloop transitions, 411 changer transitions 0/1410 dead transitions. [2021-06-13 07:41:06,274 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 701 places, 1410 transitions, 41763 flow [2021-06-13 07:41:06,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-13 07:41:06,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-06-13 07:41:06,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1438 transitions. [2021-06-13 07:41:06,276 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44382716049382714 [2021-06-13 07:41:06,276 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1438 transitions. [2021-06-13 07:41:06,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1438 transitions. [2021-06-13 07:41:06,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:41:06,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1438 transitions. [2021-06-13 07:41:06,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 71.9) internal successors, (1438), 20 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:41:06,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 162.0) internal successors, (3402), 21 states have internal predecessors, (3402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:41:06,279 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 162.0) internal successors, (3402), 21 states have internal predecessors, (3402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:41:06,279 INFO L185 Difference]: Start difference. First operand has 682 places, 1294 transitions, 37073 flow. Second operand 20 states and 1438 transitions. [2021-06-13 07:41:06,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 701 places, 1410 transitions, 41763 flow [2021-06-13 07:41:10,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 695 places, 1410 transitions, 41062 flow, removed 251 selfloop flow, removed 6 redundant places. [2021-06-13 07:41:10,725 INFO L241 Difference]: Finished difference. Result has 701 places, 1321 transitions, 38334 flow [2021-06-13 07:41:10,726 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=36400, PETRI_DIFFERENCE_MINUEND_PLACES=676, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=384, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=892, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=38334, PETRI_PLACES=701, PETRI_TRANSITIONS=1321} [2021-06-13 07:41:10,727 INFO L335 CegarLoopForPetriNet]: 148 programPoint places, 553 predicate places. [2021-06-13 07:41:10,727 INFO L482 AbstractCegarLoop]: Abstraction has has 701 places, 1321 transitions, 38334 flow [2021-06-13 07:41:10,727 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:41:10,727 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:41:10,727 INFO L255 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] [2021-06-13 07:41:10,727 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-13 07:41:10,727 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:41:10,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:41:10,728 INFO L82 PathProgramCache]: Analyzing trace with hash -234440628, now seen corresponding path program 26 times [2021-06-13 07:41:10,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:41:10,728 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667764741] [2021-06-13 07:41:10,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:41:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:41:10,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:41:10,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:41:10,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:41:10,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:41:10,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:41:10,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:41:10,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:41:10,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:41:10,847 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-06-13 07:41:10,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-13 07:41:10,856 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:41:10,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:41:10,865 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:41:10,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:41:10,884 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-06-13 07:41:10,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:41:10,902 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-06-13 07:41:10,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-06-13 07:41:10,918 INFO L142 QuantifierPusher]: treesize reduction 16, result has 60.0 percent of original size [2021-06-13 07:41:10,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-06-13 07:41:10,934 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.4 percent of original size [2021-06-13 07:41:10,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-06-13 07:41:10,956 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.9 percent of original size [2021-06-13 07:41:10,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-13 07:41:10,973 INFO L142 QuantifierPusher]: treesize reduction 9, result has 66.7 percent of original size [2021-06-13 07:41:10,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 07:41:10,988 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:41:10,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:41:10,999 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-06-13 07:41:10,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:41:10,999 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-06-13 07:41:11,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:41:11,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:41:11,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:41:11,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:41:11,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:41:11,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:41:11,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-13 07:41:11,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:41:11,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:41:11,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:41:11,037 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:41:11,037 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667764741] [2021-06-13 07:41:11,037 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667764741] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:41:11,037 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:41:11,037 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-06-13 07:41:11,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065864622] [2021-06-13 07:41:11,038 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-13 07:41:11,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:41:11,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-13 07:41:11,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-06-13 07:41:11,039 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 162 [2021-06-13 07:41:11,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 701 places, 1321 transitions, 38334 flow. Second operand has 18 states, 18 states have (on average 68.27777777777777) internal successors, (1229), 18 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:41:11,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:41:11,040 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 162 [2021-06-13 07:41:11,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand