/usr/bin/java -Xmx16000000000 -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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix030_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 19:55:38,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 19:55:38,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 19:55:38,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 19:55:38,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 19:55:38,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 19:55:38,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 19:55:38,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 19:55:38,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 19:55:38,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 19:55:38,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 19:55:38,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 19:55:38,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 19:55:38,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 19:55:38,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 19:55:38,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 19:55:38,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 19:55:38,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 19:55:38,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 19:55:38,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 19:55:38,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 19:55:38,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 19:55:38,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 19:55:38,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 19:55:38,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 19:55:38,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 19:55:38,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 19:55:38,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 19:55:38,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 19:55:38,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 19:55:38,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 19:55:38,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 19:55:38,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 19:55:38,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 19:55:38,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 19:55:38,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 19:55:38,450 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 19:55:38,502 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 19:55:38,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 19:55:38,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 19:55:38,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 19:55:38,508 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 19:55:38,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 19:55:38,508 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 19:55:38,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 19:55:38,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 19:55:38,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 19:55:38,510 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 19:55:38,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 19:55:38,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 19:55:38,511 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 19:55:38,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 19:55:38,511 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 19:55:38,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 19:55:38,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 19:55:38,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 19:55:38,512 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 19:55:38,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 19:55:38,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 19:55:38,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 19:55:38,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 19:55:38,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 19:55:38,514 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 19:55:38,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 19:55:38,514 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 19:55:38,514 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 19:55:38,515 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 19:55:38,515 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 19:55:38,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 19:55:38,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 19:55:39,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 19:55:39,002 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 19:55:39,002 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 19:55:39,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix030_rmo.opt.i [2021-04-28 19:55:39,091 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54fcdc961/20ca741689c94a50bb4abfed9eb667e8/FLAG3743466ff [2021-04-28 19:55:39,913 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 19:55:39,914 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_rmo.opt.i [2021-04-28 19:55:39,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54fcdc961/20ca741689c94a50bb4abfed9eb667e8/FLAG3743466ff [2021-04-28 19:55:40,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54fcdc961/20ca741689c94a50bb4abfed9eb667e8 [2021-04-28 19:55:40,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 19:55:40,175 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 19:55:40,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 19:55:40,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 19:55:40,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 19:55:40,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 07:55:40" (1/1) ... [2021-04-28 19:55:40,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c60e447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:55:40, skipping insertion in model container [2021-04-28 19:55:40,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 07:55:40" (1/1) ... [2021-04-28 19:55:40,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 19:55:40,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 19:55:40,415 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_rmo.opt.i[948,961] [2021-04-28 19:55:40,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 19:55:40,832 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 19:55:40,854 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_rmo.opt.i[948,961] [2021-04-28 19:55:40,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 19:55:41,132 INFO L208 MainTranslator]: Completed translation [2021-04-28 19:55:41,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:55:41 WrapperNode [2021-04-28 19:55:41,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 19:55:41,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 19:55:41,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 19:55:41,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 19:55:41,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:55:41" (1/1) ... [2021-04-28 19:55:41,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:55:41" (1/1) ... [2021-04-28 19:55:41,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 19:55:41,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 19:55:41,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 19:55:41,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 19:55:41,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:55:41" (1/1) ... [2021-04-28 19:55:41,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:55:41" (1/1) ... [2021-04-28 19:55:41,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:55:41" (1/1) ... [2021-04-28 19:55:41,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:55:41" (1/1) ... [2021-04-28 19:55:41,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:55:41" (1/1) ... [2021-04-28 19:55:41,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:55:41" (1/1) ... [2021-04-28 19:55:41,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:55:41" (1/1) ... [2021-04-28 19:55:41,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 19:55:41,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 19:55:41,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 19:55:41,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 19:55:41,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:55:41" (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 [2021-04-28 19:55:41,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 19:55:41,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 19:55:41,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 19:55:41,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 19:55:41,447 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 19:55:41,447 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 19:55:41,448 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 19:55:41,448 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 19:55:41,448 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 19:55:41,449 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 19:55:41,449 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 19:55:41,449 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 19:55:41,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 19:55:41,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 19:55:41,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 19:55:41,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 19:55:41,452 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 19:55:43,842 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 19:55:43,843 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 19:55:43,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 07:55:43 BoogieIcfgContainer [2021-04-28 19:55:43,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 19:55:43,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 19:55:43,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 19:55:43,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 19:55:43,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 07:55:40" (1/3) ... [2021-04-28 19:55:43,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb4cefa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 07:55:43, skipping insertion in model container [2021-04-28 19:55:43,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:55:41" (2/3) ... [2021-04-28 19:55:43,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb4cefa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 07:55:43, skipping insertion in model container [2021-04-28 19:55:43,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 07:55:43" (3/3) ... [2021-04-28 19:55:43,855 INFO L111 eAbstractionObserver]: Analyzing ICFG mix030_rmo.opt.i [2021-04-28 19:55:43,862 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 19:55:43,868 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 19:55:43,869 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 19:55:43,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,909 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,910 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,910 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,910 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,910 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,910 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,912 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,912 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,913 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,913 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,915 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,915 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,915 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,915 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,918 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,918 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,918 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,918 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,919 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,919 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,919 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,919 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,920 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,920 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,920 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,920 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,920 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,921 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,921 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,921 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,921 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,922 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,922 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,922 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,922 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,922 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,922 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,923 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,923 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,923 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,924 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,924 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,924 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,924 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,925 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,925 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,925 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,925 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,926 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,926 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,926 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,926 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,926 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,927 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,927 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,927 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,927 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,927 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,928 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,928 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,928 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,928 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,928 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,929 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,929 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,929 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,929 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,930 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,930 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,930 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,930 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,931 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,931 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,931 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,933 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,934 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,934 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,934 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,934 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,935 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,935 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,935 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,935 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,935 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,936 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,936 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,938 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,938 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,938 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,939 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,939 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,939 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,939 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,939 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,939 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,940 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,941 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,941 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,942 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,943 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,944 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,944 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,944 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,944 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,944 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:55:43,946 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 19:55:43,971 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 19:55:43,998 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 19:55:43,998 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 19:55:43,998 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 19:55:43,998 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 19:55:43,999 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 19:55:43,999 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 19:55:43,999 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 19:55:43,999 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 19:55:44,014 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 115 transitions, 250 flow [2021-04-28 19:55:44,070 INFO L129 PetriNetUnfolder]: 2/111 cut-off events. [2021-04-28 19:55:44,070 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:55:44,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 19:55:44,077 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 115 transitions, 250 flow [2021-04-28 19:55:44,092 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 111 transitions, 234 flow [2021-04-28 19:55:44,094 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:55:44,115 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 111 transitions, 234 flow [2021-04-28 19:55:44,122 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 111 transitions, 234 flow [2021-04-28 19:55:44,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 111 transitions, 234 flow [2021-04-28 19:55:44,186 INFO L129 PetriNetUnfolder]: 2/111 cut-off events. [2021-04-28 19:55:44,186 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:55:44,188 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 19:55:44,195 INFO L146 LiptonReduction]: Number of co-enabled transitions 2630 [2021-04-28 19:55:45,202 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-28 19:55:48,506 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 19:55:49,049 WARN L205 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 19:55:51,446 WARN L205 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 314 DAG size of output: 269 [2021-04-28 19:55:52,453 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 266 [2021-04-28 19:55:53,313 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 19:55:53,440 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 19:55:53,994 WARN L205 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2021-04-28 19:55:54,220 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 19:55:54,940 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-04-28 19:55:55,078 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-04-28 19:55:57,008 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 19:55:57,544 WARN L205 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 19:56:00,096 WARN L205 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 19:56:01,231 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 19:56:02,629 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 19:56:03,745 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-04-28 19:56:06,408 WARN L205 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 19:56:07,637 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 19:56:09,054 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 234 DAG size of output: 194 [2021-04-28 19:56:09,686 WARN L205 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-04-28 19:56:12,591 WARN L205 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 318 DAG size of output: 274 [2021-04-28 19:56:13,895 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 271 [2021-04-28 19:56:17,002 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 19:56:17,611 WARN L205 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 19:56:20,741 WARN L205 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 19:56:22,128 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 19:56:23,668 WARN L205 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2021-04-28 19:56:24,413 WARN L205 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-04-28 19:56:27,541 WARN L205 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 317 DAG size of output: 272 [2021-04-28 19:56:28,966 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 19:56:30,617 WARN L205 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2021-04-28 19:56:31,383 WARN L205 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-04-28 19:56:34,876 WARN L205 SmtUtils]: Spent 3.49 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 19:56:36,466 WARN L205 SmtUtils]: Spent 1.59 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 19:56:38,207 WARN L205 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 232 DAG size of output: 191 [2021-04-28 19:56:38,968 WARN L205 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 19:56:42,372 WARN L205 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 19:56:44,012 WARN L205 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 19:56:45,524 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:56:48,939 WARN L205 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 233 DAG size of output: 192 [2021-04-28 19:56:49,775 WARN L205 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 19:56:53,638 WARN L205 SmtUtils]: Spent 3.86 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 19:56:55,300 WARN L205 SmtUtils]: Spent 1.66 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 19:56:58,087 WARN L205 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 19:56:58,914 WARN L205 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 19:57:03,030 WARN L205 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 19:57:04,940 WARN L205 SmtUtils]: Spent 1.91 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 19:57:06,992 WARN L205 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 19:57:07,918 WARN L205 SmtUtils]: Spent 920.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 19:57:12,394 WARN L205 SmtUtils]: Spent 4.47 s on a formula simplification. DAG size of input: 316 DAG size of output: 271 [2021-04-28 19:57:14,370 WARN L205 SmtUtils]: Spent 1.97 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 19:57:16,747 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-04-28 19:57:18,074 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:57:18,208 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:57:18,345 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:57:18,483 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:57:18,609 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:57:18,741 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:57:18,874 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:57:19,011 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:57:19,114 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:57:19,219 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:57:19,323 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:57:19,426 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:57:19,566 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:57:19,699 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:57:19,850 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:57:19,995 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:57:20,101 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:57:20,206 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:57:20,329 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:57:20,448 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:57:20,562 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:57:20,675 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:57:20,790 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:57:20,908 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:57:21,064 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:57:21,224 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:57:21,386 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:57:21,547 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:57:21,654 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:57:21,773 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:57:21,885 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:57:21,999 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:57:22,149 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:22,296 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:22,445 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:22,585 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:23,710 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:57:23,828 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:57:23,945 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:57:24,066 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:57:24,172 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-04-28 19:57:24,274 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-04-28 19:57:24,379 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-04-28 19:57:24,483 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-04-28 19:57:24,629 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:24,772 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:24,914 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:25,057 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:25,201 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:25,343 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:25,486 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:25,627 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:25,768 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:25,910 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:26,052 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:26,193 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:26,495 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-04-28 19:57:26,720 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:57:26,842 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:57:26,966 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:57:27,089 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:57:27,234 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:27,379 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:27,528 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:27,674 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:57:27,823 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:57:27,951 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:57:28,080 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:57:28,209 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:57:28,420 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 19:57:28,627 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 19:57:28,834 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 19:57:29,043 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 19:57:29,149 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:57:29,256 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:57:29,360 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:57:29,466 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:57:29,602 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:57:29,738 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:57:29,874 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:57:30,011 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:57:30,948 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 19:57:31,167 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 19:57:31,399 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 19:57:31,622 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 19:57:31,734 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:57:31,845 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:57:31,956 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:57:32,067 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:57:32,271 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:57:32,476 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:57:32,698 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:57:32,900 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:57:33,109 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:57:33,310 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:57:33,527 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:57:33,746 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:57:33,947 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:57:34,143 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:57:34,339 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:57:34,528 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:57:34,697 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:57:34,877 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:57:35,045 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:57:35,222 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:57:35,421 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:57:35,623 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:57:35,820 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:57:36,019 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:57:36,220 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:57:36,416 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:57:36,608 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:57:36,811 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:57:37,069 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:57:37,318 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:57:37,562 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:57:37,791 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:57:37,952 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:57:38,120 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:57:38,291 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:57:38,461 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:57:38,646 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:57:38,831 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:57:39,006 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:57:39,187 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:57:39,604 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:57:39,896 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:57:40,201 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:57:40,497 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:57:40,811 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:57:41,132 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:57:41,463 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:57:41,789 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:57:42,146 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:57:42,500 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:57:42,842 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:57:43,195 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:57:44,146 WARN L205 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2021-04-28 19:57:44,559 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-04-28 19:57:45,499 WARN L205 SmtUtils]: Spent 937.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2021-04-28 19:57:45,942 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-04-28 19:57:46,274 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:57:46,593 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:57:46,896 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:57:47,212 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:57:47,543 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:57:47,879 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:57:48,234 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:57:48,591 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:57:49,524 WARN L205 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-04-28 19:57:50,002 WARN L205 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-04-28 19:57:50,975 WARN L205 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-04-28 19:57:51,433 WARN L205 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-04-28 19:57:51,780 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:57:52,127 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:57:52,457 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:57:52,812 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:57:53,093 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:57:53,354 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:57:53,635 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:57:53,920 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:57:54,206 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:57:54,483 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:57:54,743 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:57:55,006 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:57:55,242 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:57:55,484 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:57:55,760 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:57:56,054 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:57:56,329 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:57:56,604 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:57:56,873 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:57:57,149 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:57:57,509 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:57:57,857 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:57:58,211 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:57:58,559 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:57:58,901 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:57:59,272 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:57:59,641 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:57:59,998 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:58:00,302 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:58:00,603 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:58:00,904 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:58:01,206 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:58:01,537 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:58:01,870 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:58:02,193 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:58:02,533 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:58:02,798 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:58:03,054 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:58:03,295 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:58:03,534 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:58:03,597 INFO L158 LiptonReduction]: Checked pairs total: 23418 [2021-04-28 19:58:03,597 INFO L160 LiptonReduction]: Total number of compositions: 231 [2021-04-28 19:58:03,602 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 139510 [2021-04-28 19:58:03,635 INFO L129 PetriNetUnfolder]: 0/72 cut-off events. [2021-04-28 19:58:03,635 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:58:03,635 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:58:03,636 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:58:03,636 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:58:03,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:58:03,642 INFO L82 PathProgramCache]: Analyzing trace with hash 101771008, now seen corresponding path program 1 times [2021-04-28 19:58:03,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:58:03,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522634768] [2021-04-28 19:58:03,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:58:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:58:04,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:04,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:58:04,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:58:04,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522634768] [2021-04-28 19:58:04,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:58:04,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:58:04,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009449229] [2021-04-28 19:58:04,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:58:04,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:58:04,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:58:04,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:58:04,098 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 346 [2021-04-28 19:58:04,104 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 134 transitions, 280 flow. Second operand has 3 states, 3 states have (on average 267.6666666666667) internal successors, (803), 3 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:04,104 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:58:04,104 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 346 [2021-04-28 19:58:04,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:58:04,723 INFO L129 PetriNetUnfolder]: 329/809 cut-off events. [2021-04-28 19:58:04,723 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:58:04,728 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1366 conditions, 809 events. 329/809 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 5988 event pairs, 195 based on Foata normal form. 11/397 useless extension candidates. Maximal degree in co-relation 1297. Up to 401 conditions per place. [2021-04-28 19:58:04,732 INFO L132 encePairwiseOnDemand]: 329/346 looper letters, 9 selfloop transitions, 2 changer transitions 93/147 dead transitions. [2021-04-28 19:58:04,732 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 147 transitions, 404 flow [2021-04-28 19:58:04,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:58:04,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:58:04,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 853 transitions. [2021-04-28 19:58:04,754 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8217726396917149 [2021-04-28 19:58:04,755 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 853 transitions. [2021-04-28 19:58:04,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 853 transitions. [2021-04-28 19:58:04,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:58:04,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 853 transitions. [2021-04-28 19:58:04,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 284.3333333333333) internal successors, (853), 3 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:04,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:04,782 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:04,785 INFO L185 Difference]: Start difference. First operand has 145 places, 134 transitions, 280 flow. Second operand 3 states and 853 transitions. [2021-04-28 19:58:04,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 147 transitions, 404 flow [2021-04-28 19:58:04,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 147 transitions, 400 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 19:58:04,793 INFO L241 Difference]: Finished difference. Result has 140 places, 50 transitions, 112 flow [2021-04-28 19:58:04,796 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=140, PETRI_TRANSITIONS=50} [2021-04-28 19:58:04,797 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -5 predicate places. [2021-04-28 19:58:04,797 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:58:04,797 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 50 transitions, 112 flow [2021-04-28 19:58:04,798 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 50 transitions, 112 flow [2021-04-28 19:58:04,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 50 transitions, 112 flow [2021-04-28 19:58:04,806 INFO L129 PetriNetUnfolder]: 0/50 cut-off events. [2021-04-28 19:58:04,806 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:58:04,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 50 events. 0/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 167 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 19:58:04,808 INFO L146 LiptonReduction]: Number of co-enabled transitions 1494 [2021-04-28 19:58:05,554 INFO L158 LiptonReduction]: Checked pairs total: 1518 [2021-04-28 19:58:05,554 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:58:05,554 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 757 [2021-04-28 19:58:05,557 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 112 flow [2021-04-28 19:58:05,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 267.6666666666667) internal successors, (803), 3 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:05,558 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:58:05,558 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:58:05,559 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 19:58:05,559 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:58:05,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:58:05,559 INFO L82 PathProgramCache]: Analyzing trace with hash 978090954, now seen corresponding path program 1 times [2021-04-28 19:58:05,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:58:05,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39188629] [2021-04-28 19:58:05,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:58:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:58:05,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:05,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:58:05,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:58:05,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39188629] [2021-04-28 19:58:05,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:58:05,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:58:05,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560857068] [2021-04-28 19:58:05,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:58:05,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:58:05,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:58:05,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:58:05,692 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 346 [2021-04-28 19:58:05,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:05,694 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:58:05,694 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 346 [2021-04-28 19:58:05,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:58:05,735 INFO L129 PetriNetUnfolder]: 7/78 cut-off events. [2021-04-28 19:58:05,735 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:58:05,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 78 events. 7/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 262 event pairs, 3 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 100. Up to 18 conditions per place. [2021-04-28 19:58:05,736 INFO L132 encePairwiseOnDemand]: 342/346 looper letters, 4 selfloop transitions, 3 changer transitions 2/52 dead transitions. [2021-04-28 19:58:05,736 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 52 transitions, 130 flow [2021-04-28 19:58:05,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:58:05,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:58:05,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 854 transitions. [2021-04-28 19:58:05,743 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8227360308285164 [2021-04-28 19:58:05,744 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 854 transitions. [2021-04-28 19:58:05,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 854 transitions. [2021-04-28 19:58:05,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:58:05,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 854 transitions. [2021-04-28 19:58:05,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:05,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:05,753 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:05,753 INFO L185 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 854 transitions. [2021-04-28 19:58:05,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 52 transitions, 130 flow [2021-04-28 19:58:05,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 52 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 19:58:05,756 INFO L241 Difference]: Finished difference. Result has 62 places, 50 transitions, 123 flow [2021-04-28 19:58:05,756 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2021-04-28 19:58:05,757 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -83 predicate places. [2021-04-28 19:58:05,757 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:58:05,757 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 50 transitions, 123 flow [2021-04-28 19:58:05,757 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 50 transitions, 123 flow [2021-04-28 19:58:05,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 50 transitions, 123 flow [2021-04-28 19:58:05,767 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2021-04-28 19:58:05,767 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:58:05,768 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 62 events. 3/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 223 event pairs, 1 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 77. Up to 10 conditions per place. [2021-04-28 19:58:05,770 INFO L146 LiptonReduction]: Number of co-enabled transitions 1504 [2021-04-28 19:58:06,330 INFO L158 LiptonReduction]: Checked pairs total: 1416 [2021-04-28 19:58:06,330 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:58:06,331 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 574 [2021-04-28 19:58:06,333 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 123 flow [2021-04-28 19:58:06,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:06,334 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:58:06,334 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:58:06,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 19:58:06,334 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:58:06,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:58:06,335 INFO L82 PathProgramCache]: Analyzing trace with hash 255008319, now seen corresponding path program 1 times [2021-04-28 19:58:06,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:58:06,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076139944] [2021-04-28 19:58:06,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:58:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:58:06,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:06,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:58:06,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:58:06,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076139944] [2021-04-28 19:58:06,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:58:06,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:58:06,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902041600] [2021-04-28 19:58:06,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:58:06,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:58:06,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:58:06,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:58:06,446 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 346 [2021-04-28 19:58:06,448 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 243.66666666666666) internal successors, (731), 3 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:06,448 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:58:06,448 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 346 [2021-04-28 19:58:06,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:58:06,478 INFO L129 PetriNetUnfolder]: 2/58 cut-off events. [2021-04-28 19:58:06,478 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-04-28 19:58:06,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 58 events. 2/58 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 181 event pairs, 0 based on Foata normal form. 2/38 useless extension candidates. Maximal degree in co-relation 75. Up to 8 conditions per place. [2021-04-28 19:58:06,480 INFO L132 encePairwiseOnDemand]: 343/346 looper letters, 1 selfloop transitions, 2 changer transitions 1/50 dead transitions. [2021-04-28 19:58:06,480 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 50 transitions, 129 flow [2021-04-28 19:58:06,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:58:06,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:58:06,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 733 transitions. [2021-04-28 19:58:06,486 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7061657032755299 [2021-04-28 19:58:06,486 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 733 transitions. [2021-04-28 19:58:06,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 733 transitions. [2021-04-28 19:58:06,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:58:06,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 733 transitions. [2021-04-28 19:58:06,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:06,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:06,494 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:06,495 INFO L185 Difference]: Start difference. First operand has 60 places, 50 transitions, 123 flow. Second operand 3 states and 733 transitions. [2021-04-28 19:58:06,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 50 transitions, 129 flow [2021-04-28 19:58:06,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 50 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 19:58:06,500 INFO L241 Difference]: Finished difference. Result has 62 places, 49 transitions, 126 flow [2021-04-28 19:58:06,501 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=62, PETRI_TRANSITIONS=49} [2021-04-28 19:58:06,501 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -83 predicate places. [2021-04-28 19:58:06,501 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:58:06,502 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 49 transitions, 126 flow [2021-04-28 19:58:06,503 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 49 transitions, 126 flow [2021-04-28 19:58:06,503 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 126 flow [2021-04-28 19:58:06,514 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2021-04-28 19:58:06,514 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-28 19:58:06,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 59 events. 2/59 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 207 event pairs, 1 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 74. Up to 8 conditions per place. [2021-04-28 19:58:06,517 INFO L146 LiptonReduction]: Number of co-enabled transitions 1438 [2021-04-28 19:58:06,605 INFO L158 LiptonReduction]: Checked pairs total: 1323 [2021-04-28 19:58:06,605 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:58:06,605 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 104 [2021-04-28 19:58:06,607 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 49 transitions, 126 flow [2021-04-28 19:58:06,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 243.66666666666666) internal successors, (731), 3 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:06,608 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:58:06,608 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:58:06,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 19:58:06,609 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:58:06,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:58:06,610 INFO L82 PathProgramCache]: Analyzing trace with hash -684680184, now seen corresponding path program 1 times [2021-04-28 19:58:06,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:58:06,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879298424] [2021-04-28 19:58:06,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:58:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:58:06,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:06,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:58:06,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:58:06,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879298424] [2021-04-28 19:58:06,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:58:06,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:58:06,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435747048] [2021-04-28 19:58:06,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:58:06,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:58:06,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:58:06,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:58:06,764 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 346 [2021-04-28 19:58:06,766 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 49 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 248.66666666666666) internal successors, (746), 3 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:06,766 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:58:06,766 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 346 [2021-04-28 19:58:06,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:58:06,800 INFO L129 PetriNetUnfolder]: 8/83 cut-off events. [2021-04-28 19:58:06,800 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-04-28 19:58:06,801 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 83 events. 8/83 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 300 event pairs, 2 based on Foata normal form. 2/54 useless extension candidates. Maximal degree in co-relation 123. Up to 15 conditions per place. [2021-04-28 19:58:06,801 INFO L132 encePairwiseOnDemand]: 342/346 looper letters, 3 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2021-04-28 19:58:06,801 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 51 transitions, 142 flow [2021-04-28 19:58:06,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:58:06,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:58:06,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 751 transitions. [2021-04-28 19:58:06,807 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7235067437379576 [2021-04-28 19:58:06,807 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 751 transitions. [2021-04-28 19:58:06,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 751 transitions. [2021-04-28 19:58:06,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:58:06,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 751 transitions. [2021-04-28 19:58:06,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:06,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:06,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:06,814 INFO L185 Difference]: Start difference. First operand has 61 places, 49 transitions, 126 flow. Second operand 3 states and 751 transitions. [2021-04-28 19:58:06,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 51 transitions, 142 flow [2021-04-28 19:58:06,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 51 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 19:58:06,817 INFO L241 Difference]: Finished difference. Result has 62 places, 51 transitions, 141 flow [2021-04-28 19:58:06,818 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2021-04-28 19:58:06,818 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -83 predicate places. [2021-04-28 19:58:06,818 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:58:06,818 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 51 transitions, 141 flow [2021-04-28 19:58:06,819 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 51 transitions, 141 flow [2021-04-28 19:58:06,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 51 transitions, 141 flow [2021-04-28 19:58:06,834 INFO L129 PetriNetUnfolder]: 6/78 cut-off events. [2021-04-28 19:58:06,834 INFO L130 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2021-04-28 19:58:06,835 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 78 events. 6/78 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 330 event pairs, 3 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 115. Up to 13 conditions per place. [2021-04-28 19:58:06,837 INFO L146 LiptonReduction]: Number of co-enabled transitions 1556 [2021-04-28 19:58:06,846 INFO L158 LiptonReduction]: Checked pairs total: 1039 [2021-04-28 19:58:06,846 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:58:06,847 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-04-28 19:58:06,850 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 141 flow [2021-04-28 19:58:06,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 248.66666666666666) internal successors, (746), 3 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:06,851 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:58:06,851 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:58:06,851 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 19:58:06,851 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:58:06,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:58:06,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1247151215, now seen corresponding path program 1 times [2021-04-28 19:58:06,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:58:06,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846476857] [2021-04-28 19:58:06,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:58:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:58:06,957 INFO L142 QuantifierPusher]: treesize reduction 13, result has 61.8 percent of original size [2021-04-28 19:58:06,962 INFO L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-04-28 19:58:07,020 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-04-28 19:58:07,022 INFO L147 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size 11 [2021-04-28 19:58:07,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:58:07,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846476857] [2021-04-28 19:58:07,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:58:07,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 19:58:07,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494409359] [2021-04-28 19:58:07,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:58:07,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:58:07,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:58:07,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:58:07,107 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 346 [2021-04-28 19:58:07,109 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 217.75) internal successors, (871), 4 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:07,109 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:58:07,109 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 346 [2021-04-28 19:58:07,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:58:07,324 INFO L129 PetriNetUnfolder]: 224/536 cut-off events. [2021-04-28 19:58:07,324 INFO L130 PetriNetUnfolder]: For 233/246 co-relation queries the response was YES. [2021-04-28 19:58:07,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1080 conditions, 536 events. 224/536 cut-off events. For 233/246 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3318 event pairs, 137 based on Foata normal form. 3/387 useless extension candidates. Maximal degree in co-relation 1067. Up to 288 conditions per place. [2021-04-28 19:58:07,332 INFO L132 encePairwiseOnDemand]: 342/346 looper letters, 9 selfloop transitions, 3 changer transitions 0/55 dead transitions. [2021-04-28 19:58:07,333 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 55 transitions, 173 flow [2021-04-28 19:58:07,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:58:07,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:58:07,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 664 transitions. [2021-04-28 19:58:07,338 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6396917148362236 [2021-04-28 19:58:07,338 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 664 transitions. [2021-04-28 19:58:07,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 664 transitions. [2021-04-28 19:58:07,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:58:07,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 664 transitions. [2021-04-28 19:58:07,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:07,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:07,345 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:07,346 INFO L185 Difference]: Start difference. First operand has 62 places, 51 transitions, 141 flow. Second operand 3 states and 664 transitions. [2021-04-28 19:58:07,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 55 transitions, 173 flow [2021-04-28 19:58:07,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 55 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 19:58:07,348 INFO L241 Difference]: Finished difference. Result has 64 places, 53 transitions, 157 flow [2021-04-28 19:58:07,349 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=64, PETRI_TRANSITIONS=53} [2021-04-28 19:58:07,349 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -81 predicate places. [2021-04-28 19:58:07,349 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:58:07,349 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 53 transitions, 157 flow [2021-04-28 19:58:07,349 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 53 transitions, 157 flow [2021-04-28 19:58:07,350 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 53 transitions, 157 flow [2021-04-28 19:58:07,369 INFO L129 PetriNetUnfolder]: 13/106 cut-off events. [2021-04-28 19:58:07,369 INFO L130 PetriNetUnfolder]: For 53/59 co-relation queries the response was YES. [2021-04-28 19:58:07,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 106 events. 13/106 cut-off events. For 53/59 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 545 event pairs, 8 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 183. Up to 21 conditions per place. [2021-04-28 19:58:07,373 INFO L146 LiptonReduction]: Number of co-enabled transitions 1654 [2021-04-28 19:58:07,642 INFO L158 LiptonReduction]: Checked pairs total: 917 [2021-04-28 19:58:07,643 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:58:07,643 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 294 [2021-04-28 19:58:07,645 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 53 transitions, 157 flow [2021-04-28 19:58:07,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 217.75) internal successors, (871), 4 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:07,646 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:58:07,646 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:58:07,646 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 19:58:07,647 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:58:07,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:58:07,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1867868623, now seen corresponding path program 1 times [2021-04-28 19:58:07,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:58:07,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376940576] [2021-04-28 19:58:07,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:58:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:58:07,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:07,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 19:58:07,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:07,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:58:07,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:07,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 19:58:07,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:58:07,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376940576] [2021-04-28 19:58:07,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:58:07,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:58:07,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849516780] [2021-04-28 19:58:07,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 19:58:07,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:58:07,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 19:58:07,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 19:58:07,785 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 346 [2021-04-28 19:58:07,787 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 53 transitions, 157 flow. Second operand has 5 states, 5 states have (on average 220.8) internal successors, (1104), 5 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:07,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:58:07,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 346 [2021-04-28 19:58:07,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:58:08,090 INFO L129 PetriNetUnfolder]: 198/456 cut-off events. [2021-04-28 19:58:08,090 INFO L130 PetriNetUnfolder]: For 392/462 co-relation queries the response was YES. [2021-04-28 19:58:08,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1044 conditions, 456 events. 198/456 cut-off events. For 392/462 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2690 event pairs, 67 based on Foata normal form. 11/337 useless extension candidates. Maximal degree in co-relation 1029. Up to 232 conditions per place. [2021-04-28 19:58:08,102 INFO L132 encePairwiseOnDemand]: 342/346 looper letters, 11 selfloop transitions, 4 changer transitions 0/58 dead transitions. [2021-04-28 19:58:08,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 58 transitions, 197 flow [2021-04-28 19:58:08,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:58:08,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:58:08,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 896 transitions. [2021-04-28 19:58:08,109 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6473988439306358 [2021-04-28 19:58:08,109 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 896 transitions. [2021-04-28 19:58:08,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 896 transitions. [2021-04-28 19:58:08,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:58:08,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 896 transitions. [2021-04-28 19:58:08,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:08,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 346.0) internal successors, (1730), 5 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:08,120 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 346.0) internal successors, (1730), 5 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:08,120 INFO L185 Difference]: Start difference. First operand has 64 places, 53 transitions, 157 flow. Second operand 4 states and 896 transitions. [2021-04-28 19:58:08,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 58 transitions, 197 flow [2021-04-28 19:58:08,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 58 transitions, 194 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 19:58:08,124 INFO L241 Difference]: Finished difference. Result has 67 places, 53 transitions, 166 flow [2021-04-28 19:58:08,125 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=67, PETRI_TRANSITIONS=53} [2021-04-28 19:58:08,125 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -78 predicate places. [2021-04-28 19:58:08,125 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:58:08,125 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 53 transitions, 166 flow [2021-04-28 19:58:08,125 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 53 transitions, 166 flow [2021-04-28 19:58:08,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 53 transitions, 166 flow [2021-04-28 19:58:08,145 INFO L129 PetriNetUnfolder]: 12/106 cut-off events. [2021-04-28 19:58:08,145 INFO L130 PetriNetUnfolder]: For 73/82 co-relation queries the response was YES. [2021-04-28 19:58:08,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 106 events. 12/106 cut-off events. For 73/82 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 510 event pairs, 5 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 188. Up to 21 conditions per place. [2021-04-28 19:58:08,151 INFO L146 LiptonReduction]: Number of co-enabled transitions 1652 [2021-04-28 19:58:08,504 INFO L158 LiptonReduction]: Checked pairs total: 917 [2021-04-28 19:58:08,504 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:58:08,504 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 379 [2021-04-28 19:58:08,506 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 53 transitions, 166 flow [2021-04-28 19:58:08,507 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 220.8) internal successors, (1104), 5 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:08,507 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:58:08,507 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:58:08,508 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 19:58:08,508 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:58:08,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:58:08,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1361177933, now seen corresponding path program 1 times [2021-04-28 19:58:08,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:58:08,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276555431] [2021-04-28 19:58:08,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:58:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:58:08,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:08,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:58:08,619 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-04-28 19:58:08,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-04-28 19:58:08,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:08,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:58:08,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:58:08,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276555431] [2021-04-28 19:58:08,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:58:08,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 19:58:08,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108458062] [2021-04-28 19:58:08,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:58:08,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:58:08,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:58:08,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:58:08,678 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 346 [2021-04-28 19:58:08,680 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 53 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:08,680 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:58:08,680 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 346 [2021-04-28 19:58:08,680 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:58:08,965 INFO L129 PetriNetUnfolder]: 193/491 cut-off events. [2021-04-28 19:58:08,965 INFO L130 PetriNetUnfolder]: For 601/653 co-relation queries the response was YES. [2021-04-28 19:58:08,970 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 491 events. 193/491 cut-off events. For 601/653 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3080 event pairs, 106 based on Foata normal form. 7/353 useless extension candidates. Maximal degree in co-relation 1112. Up to 249 conditions per place. [2021-04-28 19:58:08,975 INFO L132 encePairwiseOnDemand]: 340/346 looper letters, 10 selfloop transitions, 6 changer transitions 0/59 dead transitions. [2021-04-28 19:58:08,975 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 59 transitions, 212 flow [2021-04-28 19:58:08,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:58:08,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:58:08,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 889 transitions. [2021-04-28 19:58:08,983 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6423410404624278 [2021-04-28 19:58:08,983 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 889 transitions. [2021-04-28 19:58:08,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 889 transitions. [2021-04-28 19:58:08,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:58:08,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 889 transitions. [2021-04-28 19:58:08,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 222.25) internal successors, (889), 4 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:08,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 346.0) internal successors, (1730), 5 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:08,995 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 346.0) internal successors, (1730), 5 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:08,996 INFO L185 Difference]: Start difference. First operand has 67 places, 53 transitions, 166 flow. Second operand 4 states and 889 transitions. [2021-04-28 19:58:08,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 59 transitions, 212 flow [2021-04-28 19:58:09,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 59 transitions, 204 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 19:58:09,003 INFO L241 Difference]: Finished difference. Result has 69 places, 56 transitions, 190 flow [2021-04-28 19:58:09,003 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=69, PETRI_TRANSITIONS=56} [2021-04-28 19:58:09,003 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -76 predicate places. [2021-04-28 19:58:09,004 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:58:09,004 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 56 transitions, 190 flow [2021-04-28 19:58:09,004 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 56 transitions, 190 flow [2021-04-28 19:58:09,005 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 56 transitions, 190 flow [2021-04-28 19:58:09,049 INFO L129 PetriNetUnfolder]: 44/177 cut-off events. [2021-04-28 19:58:09,049 INFO L130 PetriNetUnfolder]: For 256/266 co-relation queries the response was YES. [2021-04-28 19:58:09,051 INFO L84 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 177 events. 44/177 cut-off events. For 256/266 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 952 event pairs, 20 based on Foata normal form. 1/107 useless extension candidates. Maximal degree in co-relation 433. Up to 65 conditions per place. [2021-04-28 19:58:09,056 INFO L146 LiptonReduction]: Number of co-enabled transitions 1794 [2021-04-28 19:58:09,580 INFO L158 LiptonReduction]: Checked pairs total: 504 [2021-04-28 19:58:09,580 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:58:09,581 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 577 [2021-04-28 19:58:09,583 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 56 transitions, 190 flow [2021-04-28 19:58:09,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 219.0) internal successors, (876), 4 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:09,584 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:58:09,584 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:58:09,584 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 19:58:09,584 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:58:09,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:58:09,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1705657987, now seen corresponding path program 1 times [2021-04-28 19:58:09,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:58:09,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637689873] [2021-04-28 19:58:09,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:58:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:58:09,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:09,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:58:09,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:09,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:58:09,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:09,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:58:09,798 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-04-28 19:58:09,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-04-28 19:58:09,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:58:09,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637689873] [2021-04-28 19:58:09,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:58:09,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 19:58:09,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887906849] [2021-04-28 19:58:09,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 19:58:09,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:58:09,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 19:58:09,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 19:58:09,856 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 346 [2021-04-28 19:58:09,858 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 56 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 208.83333333333334) internal successors, (1253), 6 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:09,858 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:58:09,858 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 346 [2021-04-28 19:58:09,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:58:10,192 INFO L129 PetriNetUnfolder]: 211/535 cut-off events. [2021-04-28 19:58:10,192 INFO L130 PetriNetUnfolder]: For 908/1144 co-relation queries the response was YES. [2021-04-28 19:58:10,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1354 conditions, 535 events. 211/535 cut-off events. For 908/1144 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3418 event pairs, 39 based on Foata normal form. 16/377 useless extension candidates. Maximal degree in co-relation 1336. Up to 243 conditions per place. [2021-04-28 19:58:10,202 INFO L132 encePairwiseOnDemand]: 339/346 looper letters, 14 selfloop transitions, 10 changer transitions 0/67 dead transitions. [2021-04-28 19:58:10,202 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 67 transitions, 270 flow [2021-04-28 19:58:10,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 19:58:10,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 19:58:10,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1061 transitions. [2021-04-28 19:58:10,208 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6132947976878613 [2021-04-28 19:58:10,209 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1061 transitions. [2021-04-28 19:58:10,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1061 transitions. [2021-04-28 19:58:10,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:58:10,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1061 transitions. [2021-04-28 19:58:10,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 212.2) internal successors, (1061), 5 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:10,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:10,219 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:10,219 INFO L185 Difference]: Start difference. First operand has 69 places, 56 transitions, 190 flow. Second operand 5 states and 1061 transitions. [2021-04-28 19:58:10,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 67 transitions, 270 flow [2021-04-28 19:58:10,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 67 transitions, 260 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 19:58:10,223 INFO L241 Difference]: Finished difference. Result has 73 places, 62 transitions, 240 flow [2021-04-28 19:58:10,224 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=240, PETRI_PLACES=73, PETRI_TRANSITIONS=62} [2021-04-28 19:58:10,224 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -72 predicate places. [2021-04-28 19:58:10,224 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:58:10,224 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 62 transitions, 240 flow [2021-04-28 19:58:10,225 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 62 transitions, 240 flow [2021-04-28 19:58:10,225 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 62 transitions, 240 flow [2021-04-28 19:58:10,282 INFO L129 PetriNetUnfolder]: 75/254 cut-off events. [2021-04-28 19:58:10,282 INFO L130 PetriNetUnfolder]: For 507/522 co-relation queries the response was YES. [2021-04-28 19:58:10,284 INFO L84 FinitePrefix]: Finished finitePrefix Result has 738 conditions, 254 events. 75/254 cut-off events. For 507/522 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1527 event pairs, 33 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 720. Up to 89 conditions per place. [2021-04-28 19:58:10,291 INFO L146 LiptonReduction]: Number of co-enabled transitions 2066 [2021-04-28 19:58:10,417 INFO L158 LiptonReduction]: Checked pairs total: 398 [2021-04-28 19:58:10,417 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:58:10,417 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 193 [2021-04-28 19:58:10,456 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 62 transitions, 240 flow [2021-04-28 19:58:10,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 208.83333333333334) internal successors, (1253), 6 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:10,457 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:58:10,457 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:58:10,457 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 19:58:10,457 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:58:10,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:58:10,462 INFO L82 PathProgramCache]: Analyzing trace with hash -637912811, now seen corresponding path program 2 times [2021-04-28 19:58:10,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:58:10,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691339995] [2021-04-28 19:58:10,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:58:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:58:10,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:10,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 19:58:10,542 INFO L142 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-04-28 19:58:10,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-28 19:58:10,563 INFO L142 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-04-28 19:58:10,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-28 19:58:10,567 INFO L142 QuantifierPusher]: treesize reduction 16, result has 40.7 percent of original size [2021-04-28 19:58:10,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 19:58:10,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:58:10,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691339995] [2021-04-28 19:58:10,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:58:10,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:58:10,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850469414] [2021-04-28 19:58:10,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 19:58:10,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:58:10,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 19:58:10,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 19:58:10,599 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 346 [2021-04-28 19:58:10,601 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 62 transitions, 240 flow. Second operand has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:10,601 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:58:10,601 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 346 [2021-04-28 19:58:10,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:58:10,931 INFO L129 PetriNetUnfolder]: 263/648 cut-off events. [2021-04-28 19:58:10,931 INFO L130 PetriNetUnfolder]: For 1729/2214 co-relation queries the response was YES. [2021-04-28 19:58:10,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2061 conditions, 648 events. 263/648 cut-off events. For 1729/2214 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4248 event pairs, 31 based on Foata normal form. 49/516 useless extension candidates. Maximal degree in co-relation 2041. Up to 292 conditions per place. [2021-04-28 19:58:10,945 INFO L132 encePairwiseOnDemand]: 338/346 looper letters, 15 selfloop transitions, 18 changer transitions 0/76 dead transitions. [2021-04-28 19:58:10,945 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 76 transitions, 385 flow [2021-04-28 19:58:10,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 19:58:10,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 19:58:10,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1341 transitions. [2021-04-28 19:58:10,952 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6459537572254336 [2021-04-28 19:58:10,952 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1341 transitions. [2021-04-28 19:58:10,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1341 transitions. [2021-04-28 19:58:10,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:58:10,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1341 transitions. [2021-04-28 19:58:10,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 223.5) internal successors, (1341), 6 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:10,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 346.0) internal successors, (2422), 7 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:10,963 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 346.0) internal successors, (2422), 7 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:10,963 INFO L185 Difference]: Start difference. First operand has 73 places, 62 transitions, 240 flow. Second operand 6 states and 1341 transitions. [2021-04-28 19:58:10,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 76 transitions, 385 flow [2021-04-28 19:58:10,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 76 transitions, 364 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-04-28 19:58:10,968 INFO L241 Difference]: Finished difference. Result has 79 places, 73 transitions, 355 flow [2021-04-28 19:58:10,969 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=355, PETRI_PLACES=79, PETRI_TRANSITIONS=73} [2021-04-28 19:58:10,969 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -66 predicate places. [2021-04-28 19:58:10,969 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:58:10,969 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 73 transitions, 355 flow [2021-04-28 19:58:10,969 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 73 transitions, 355 flow [2021-04-28 19:58:10,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 73 transitions, 355 flow [2021-04-28 19:58:11,053 INFO L129 PetriNetUnfolder]: 143/406 cut-off events. [2021-04-28 19:58:11,053 INFO L130 PetriNetUnfolder]: For 1019/1069 co-relation queries the response was YES. [2021-04-28 19:58:11,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1370 conditions, 406 events. 143/406 cut-off events. For 1019/1069 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2527 event pairs, 43 based on Foata normal form. 10/284 useless extension candidates. Maximal degree in co-relation 1349. Up to 169 conditions per place. [2021-04-28 19:58:11,067 INFO L146 LiptonReduction]: Number of co-enabled transitions 2384 [2021-04-28 19:58:11,119 INFO L158 LiptonReduction]: Checked pairs total: 611 [2021-04-28 19:58:11,119 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:58:11,120 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 151 [2021-04-28 19:58:11,122 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 73 transitions, 355 flow [2021-04-28 19:58:11,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 221.0) internal successors, (1105), 5 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:11,123 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:58:11,123 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:58:11,123 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 19:58:11,123 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:58:11,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:58:11,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1539830953, now seen corresponding path program 3 times [2021-04-28 19:58:11,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:58:11,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175050131] [2021-04-28 19:58:11,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:58:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:58:11,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:11,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 19:58:11,262 INFO L142 QuantifierPusher]: treesize reduction 10, result has 84.1 percent of original size [2021-04-28 19:58:11,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-28 19:58:11,308 INFO L142 QuantifierPusher]: treesize reduction 10, result has 84.8 percent of original size [2021-04-28 19:58:11,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-04-28 19:58:11,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:11,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:58:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:58:11,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175050131] [2021-04-28 19:58:11,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:58:11,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 19:58:11,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23497002] [2021-04-28 19:58:11,402 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 19:58:11,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:58:11,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 19:58:11,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 19:58:11,405 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 346 [2021-04-28 19:58:11,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 73 transitions, 355 flow. Second operand has 6 states, 6 states have (on average 208.83333333333334) internal successors, (1253), 6 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:11,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:58:11,408 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 346 [2021-04-28 19:58:11,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:58:11,886 INFO L129 PetriNetUnfolder]: 267/629 cut-off events. [2021-04-28 19:58:11,886 INFO L130 PetriNetUnfolder]: For 2517/3367 co-relation queries the response was YES. [2021-04-28 19:58:11,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2535 conditions, 629 events. 267/629 cut-off events. For 2517/3367 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 4052 event pairs, 19 based on Foata normal form. 67/558 useless extension candidates. Maximal degree in co-relation 2512. Up to 299 conditions per place. [2021-04-28 19:58:11,901 INFO L132 encePairwiseOnDemand]: 339/346 looper letters, 19 selfloop transitions, 20 changer transitions 0/82 dead transitions. [2021-04-28 19:58:11,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 82 transitions, 505 flow [2021-04-28 19:58:11,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 19:58:11,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 19:58:11,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1268 transitions. [2021-04-28 19:58:11,909 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6107899807321773 [2021-04-28 19:58:11,909 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1268 transitions. [2021-04-28 19:58:11,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1268 transitions. [2021-04-28 19:58:11,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:58:11,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1268 transitions. [2021-04-28 19:58:11,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 211.33333333333334) internal successors, (1268), 6 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:11,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 346.0) internal successors, (2422), 7 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:11,920 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 346.0) internal successors, (2422), 7 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:11,921 INFO L185 Difference]: Start difference. First operand has 79 places, 73 transitions, 355 flow. Second operand 6 states and 1268 transitions. [2021-04-28 19:58:11,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 82 transitions, 505 flow [2021-04-28 19:58:11,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 82 transitions, 496 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-04-28 19:58:11,929 INFO L241 Difference]: Finished difference. Result has 84 places, 76 transitions, 437 flow [2021-04-28 19:58:11,929 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=437, PETRI_PLACES=84, PETRI_TRANSITIONS=76} [2021-04-28 19:58:11,929 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -61 predicate places. [2021-04-28 19:58:11,930 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:58:11,930 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 76 transitions, 437 flow [2021-04-28 19:58:11,930 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 76 transitions, 437 flow [2021-04-28 19:58:11,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 437 flow [2021-04-28 19:58:12,026 INFO L129 PetriNetUnfolder]: 144/420 cut-off events. [2021-04-28 19:58:12,026 INFO L130 PetriNetUnfolder]: For 1270/1357 co-relation queries the response was YES. [2021-04-28 19:58:12,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1587 conditions, 420 events. 144/420 cut-off events. For 1270/1357 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2706 event pairs, 31 based on Foata normal form. 16/306 useless extension candidates. Maximal degree in co-relation 1564. Up to 174 conditions per place. [2021-04-28 19:58:12,045 INFO L146 LiptonReduction]: Number of co-enabled transitions 2532 [2021-04-28 19:58:12,055 INFO L158 LiptonReduction]: Checked pairs total: 692 [2021-04-28 19:58:12,055 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:58:12,055 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 125 [2021-04-28 19:58:12,057 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 76 transitions, 437 flow [2021-04-28 19:58:12,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 208.83333333333334) internal successors, (1253), 6 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:12,059 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:58:12,059 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:58:12,059 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 19:58:12,059 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:58:12,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:58:12,060 INFO L82 PathProgramCache]: Analyzing trace with hash -580186206, now seen corresponding path program 1 times [2021-04-28 19:58:12,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:58:12,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830620741] [2021-04-28 19:58:12,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:58:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:58:12,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:12,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 19:58:12,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:12,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 19:58:12,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:12,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 19:58:12,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:12,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 19:58:12,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:12,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 19:58:12,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:58:12,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830620741] [2021-04-28 19:58:12,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:58:12,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 19:58:12,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9486988] [2021-04-28 19:58:12,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 19:58:12,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:58:12,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 19:58:12,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-04-28 19:58:12,322 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 346 [2021-04-28 19:58:12,325 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 76 transitions, 437 flow. Second operand has 7 states, 7 states have (on average 205.85714285714286) internal successors, (1441), 7 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:12,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:58:12,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 346 [2021-04-28 19:58:12,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:58:12,902 INFO L129 PetriNetUnfolder]: 259/612 cut-off events. [2021-04-28 19:58:12,902 INFO L130 PetriNetUnfolder]: For 3150/4278 co-relation queries the response was YES. [2021-04-28 19:58:12,909 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2861 conditions, 612 events. 259/612 cut-off events. For 3150/4278 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 3883 event pairs, 24 based on Foata normal form. 104/591 useless extension candidates. Maximal degree in co-relation 2836. Up to 312 conditions per place. [2021-04-28 19:58:12,918 INFO L132 encePairwiseOnDemand]: 338/346 looper letters, 24 selfloop transitions, 33 changer transitions 0/100 dead transitions. [2021-04-28 19:58:12,918 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 100 transitions, 778 flow [2021-04-28 19:58:12,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-28 19:58:12,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-28 19:58:12,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1670 transitions. [2021-04-28 19:58:12,928 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6033236994219653 [2021-04-28 19:58:12,929 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1670 transitions. [2021-04-28 19:58:12,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1670 transitions. [2021-04-28 19:58:12,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:58:12,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1670 transitions. [2021-04-28 19:58:12,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 208.75) internal successors, (1670), 8 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:12,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 346.0) internal successors, (3114), 9 states have internal predecessors, (3114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:12,954 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 346.0) internal successors, (3114), 9 states have internal predecessors, (3114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:12,954 INFO L185 Difference]: Start difference. First operand has 84 places, 76 transitions, 437 flow. Second operand 8 states and 1670 transitions. [2021-04-28 19:58:12,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 100 transitions, 778 flow [2021-04-28 19:58:12,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 100 transitions, 716 flow, removed 15 selfloop flow, removed 4 redundant places. [2021-04-28 19:58:12,973 INFO L241 Difference]: Finished difference. Result has 92 places, 95 transitions, 697 flow [2021-04-28 19:58:12,973 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=697, PETRI_PLACES=92, PETRI_TRANSITIONS=95} [2021-04-28 19:58:12,974 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -53 predicate places. [2021-04-28 19:58:12,974 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:58:12,974 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 95 transitions, 697 flow [2021-04-28 19:58:12,974 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 95 transitions, 697 flow [2021-04-28 19:58:12,975 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 95 transitions, 697 flow [2021-04-28 19:58:13,062 INFO L129 PetriNetUnfolder]: 138/406 cut-off events. [2021-04-28 19:58:13,062 INFO L130 PetriNetUnfolder]: For 1333/1443 co-relation queries the response was YES. [2021-04-28 19:58:13,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1589 conditions, 406 events. 138/406 cut-off events. For 1333/1443 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2528 event pairs, 38 based on Foata normal form. 15/302 useless extension candidates. Maximal degree in co-relation 1561. Up to 168 conditions per place. [2021-04-28 19:58:13,081 INFO L146 LiptonReduction]: Number of co-enabled transitions 3098 [2021-04-28 19:58:13,132 INFO L158 LiptonReduction]: Checked pairs total: 1130 [2021-04-28 19:58:13,132 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:58:13,132 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 158 [2021-04-28 19:58:13,134 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 95 transitions, 697 flow [2021-04-28 19:58:13,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 205.85714285714286) internal successors, (1441), 7 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:13,136 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:58:13,136 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:58:13,136 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 19:58:13,136 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:58:13,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:58:13,137 INFO L82 PathProgramCache]: Analyzing trace with hash -884873912, now seen corresponding path program 1 times [2021-04-28 19:58:13,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:58:13,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113220165] [2021-04-28 19:58:13,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:58:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:58:13,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:13,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:58:13,274 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:58:13,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:58:13,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:13,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:58:13,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:58:13,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113220165] [2021-04-28 19:58:13,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:58:13,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:58:13,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877223565] [2021-04-28 19:58:13,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:58:13,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:58:13,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:58:13,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:58:13,307 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 346 [2021-04-28 19:58:13,308 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 95 transitions, 697 flow. Second operand has 4 states, 4 states have (on average 259.75) internal successors, (1039), 4 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:13,308 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:58:13,308 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 346 [2021-04-28 19:58:13,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:58:21,550 INFO L129 PetriNetUnfolder]: 29138/44327 cut-off events. [2021-04-28 19:58:21,551 INFO L130 PetriNetUnfolder]: For 34545/94574 co-relation queries the response was YES. [2021-04-28 19:58:21,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102749 conditions, 44327 events. 29138/44327 cut-off events. For 34545/94574 co-relation queries the response was YES. Maximal size of possible extension queue 9093. Compared 412157 event pairs, 14448 based on Foata normal form. 1466/13507 useless extension candidates. Maximal degree in co-relation 102719. Up to 27133 conditions per place. [2021-04-28 19:58:22,206 INFO L132 encePairwiseOnDemand]: 326/346 looper letters, 38 selfloop transitions, 33 changer transitions 0/139 dead transitions. [2021-04-28 19:58:22,206 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 139 transitions, 927 flow [2021-04-28 19:58:22,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 19:58:22,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 19:58:22,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1361 transitions. [2021-04-28 19:58:22,213 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7867052023121387 [2021-04-28 19:58:22,213 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1361 transitions. [2021-04-28 19:58:22,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1361 transitions. [2021-04-28 19:58:22,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:58:22,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1361 transitions. [2021-04-28 19:58:22,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 272.2) internal successors, (1361), 5 states have internal predecessors, (1361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:22,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:22,223 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 346.0) internal successors, (2076), 6 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:22,223 INFO L185 Difference]: Start difference. First operand has 92 places, 95 transitions, 697 flow. Second operand 5 states and 1361 transitions. [2021-04-28 19:58:22,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 139 transitions, 927 flow [2021-04-28 19:58:22,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 139 transitions, 908 flow, removed 9 selfloop flow, removed 1 redundant places. [2021-04-28 19:58:22,395 INFO L241 Difference]: Finished difference. Result has 98 places, 126 transitions, 940 flow [2021-04-28 19:58:22,395 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=940, PETRI_PLACES=98, PETRI_TRANSITIONS=126} [2021-04-28 19:58:22,396 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -47 predicate places. [2021-04-28 19:58:22,396 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:58:22,396 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 126 transitions, 940 flow [2021-04-28 19:58:22,396 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 126 transitions, 940 flow [2021-04-28 19:58:22,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 126 transitions, 940 flow [2021-04-28 19:58:26,835 INFO L129 PetriNetUnfolder]: 25266/38016 cut-off events. [2021-04-28 19:58:26,835 INFO L130 PetriNetUnfolder]: For 25769/50466 co-relation queries the response was YES. [2021-04-28 19:58:27,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116415 conditions, 38016 events. 25266/38016 cut-off events. For 25769/50466 co-relation queries the response was YES. Maximal size of possible extension queue 5987. Compared 341727 event pairs, 13765 based on Foata normal form. 243/11604 useless extension candidates. Maximal degree in co-relation 116383. Up to 34763 conditions per place. [2021-04-28 19:58:27,785 INFO L146 LiptonReduction]: Number of co-enabled transitions 4586 [2021-04-28 19:58:27,871 INFO L158 LiptonReduction]: Checked pairs total: 1166 [2021-04-28 19:58:27,871 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:58:27,871 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5475 [2021-04-28 19:58:27,874 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 126 transitions, 940 flow [2021-04-28 19:58:27,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 259.75) internal successors, (1039), 4 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:27,874 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:58:27,874 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:58:27,875 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-28 19:58:27,875 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:58:27,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:58:27,875 INFO L82 PathProgramCache]: Analyzing trace with hash -591909525, now seen corresponding path program 1 times [2021-04-28 19:58:27,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:58:27,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785756667] [2021-04-28 19:58:27,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:58:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:58:27,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:27,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:58:27,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:27,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:58:27,979 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:58:27,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:58:28,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:28,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:58:28,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:58:28,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785756667] [2021-04-28 19:58:28,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:58:28,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 19:58:28,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775385790] [2021-04-28 19:58:28,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 19:58:28,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:58:28,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 19:58:28,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 19:58:28,012 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 346 [2021-04-28 19:58:28,014 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 126 transitions, 940 flow. Second operand has 5 states, 5 states have (on average 259.8) internal successors, (1299), 5 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:28,014 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:58:28,014 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 346 [2021-04-28 19:58:28,014 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:58:35,696 INFO L129 PetriNetUnfolder]: 30188/48884 cut-off events. [2021-04-28 19:58:35,696 INFO L130 PetriNetUnfolder]: For 79450/4461418 co-relation queries the response was YES. [2021-04-28 19:58:36,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195674 conditions, 48884 events. 30188/48884 cut-off events. For 79450/4461418 co-relation queries the response was YES. Maximal size of possible extension queue 11244. Compared 485939 event pairs, 5229 based on Foata normal form. 1704/16268 useless extension candidates. Maximal degree in co-relation 195640. Up to 43184 conditions per place. [2021-04-28 19:58:36,494 INFO L132 encePairwiseOnDemand]: 326/346 looper letters, 38 selfloop transitions, 64 changer transitions 0/164 dead transitions. [2021-04-28 19:58:36,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 164 transitions, 1311 flow [2021-04-28 19:58:36,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 19:58:36,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 19:58:36,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1909 transitions. [2021-04-28 19:58:36,504 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7881915772089183 [2021-04-28 19:58:36,504 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1909 transitions. [2021-04-28 19:58:36,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1909 transitions. [2021-04-28 19:58:36,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:58:36,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1909 transitions. [2021-04-28 19:58:36,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 272.7142857142857) internal successors, (1909), 7 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:36,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 346.0) internal successors, (2768), 8 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:36,517 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 346.0) internal successors, (2768), 8 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:36,517 INFO L185 Difference]: Start difference. First operand has 98 places, 126 transitions, 940 flow. Second operand 7 states and 1909 transitions. [2021-04-28 19:58:36,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 164 transitions, 1311 flow [2021-04-28 19:58:36,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 164 transitions, 1309 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-04-28 19:58:36,789 INFO L241 Difference]: Finished difference. Result has 107 places, 150 transitions, 1310 flow [2021-04-28 19:58:36,790 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1310, PETRI_PLACES=107, PETRI_TRANSITIONS=150} [2021-04-28 19:58:36,790 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -38 predicate places. [2021-04-28 19:58:36,790 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:58:36,790 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 150 transitions, 1310 flow [2021-04-28 19:58:36,790 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 150 transitions, 1310 flow [2021-04-28 19:58:36,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 107 places, 150 transitions, 1310 flow [2021-04-28 19:58:42,285 INFO L129 PetriNetUnfolder]: 27172/43801 cut-off events. [2021-04-28 19:58:42,285 INFO L130 PetriNetUnfolder]: For 84335/201985 co-relation queries the response was YES. [2021-04-28 19:58:42,620 INFO L84 FinitePrefix]: Finished finitePrefix Result has 212902 conditions, 43801 events. 27172/43801 cut-off events. For 84335/201985 co-relation queries the response was YES. Maximal size of possible extension queue 7614. Compared 437645 event pairs, 5445 based on Foata normal form. 310/14042 useless extension candidates. Maximal degree in co-relation 212865. Up to 40163 conditions per place. [2021-04-28 19:58:43,303 INFO L146 LiptonReduction]: Number of co-enabled transitions 5820 [2021-04-28 19:58:43,366 INFO L158 LiptonReduction]: Checked pairs total: 1124 [2021-04-28 19:58:43,367 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:58:43,367 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6577 [2021-04-28 19:58:43,369 INFO L480 AbstractCegarLoop]: Abstraction has has 107 places, 150 transitions, 1310 flow [2021-04-28 19:58:43,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 259.8) internal successors, (1299), 5 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:43,370 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:58:43,370 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:58:43,370 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-28 19:58:43,370 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:58:43,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:58:43,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1830802945, now seen corresponding path program 1 times [2021-04-28 19:58:43,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:58:43,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505879851] [2021-04-28 19:58:43,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:58:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:58:43,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:43,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:58:43,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:58:43,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:58:43,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:58:43,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505879851] [2021-04-28 19:58:43,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:58:43,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 19:58:43,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115461352] [2021-04-28 19:58:43,466 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:58:43,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:58:43,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:58:43,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:58:43,469 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 346 [2021-04-28 19:58:43,469 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 150 transitions, 1310 flow. Second operand has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:43,470 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:58:43,470 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 346 [2021-04-28 19:58:43,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:58:55,286 INFO L129 PetriNetUnfolder]: 49471/78743 cut-off events. [2021-04-28 19:58:55,286 INFO L130 PetriNetUnfolder]: For 219815/5049440 co-relation queries the response was YES. [2021-04-28 19:58:55,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 382554 conditions, 78743 events. 49471/78743 cut-off events. For 219815/5049440 co-relation queries the response was YES. Maximal size of possible extension queue 17934. Compared 817548 event pairs, 9684 based on Foata normal form. 1236/23839 useless extension candidates. Maximal degree in co-relation 382515. Up to 72746 conditions per place. [2021-04-28 19:58:56,197 INFO L132 encePairwiseOnDemand]: 343/346 looper letters, 3 selfloop transitions, 3 changer transitions 0/150 dead transitions. [2021-04-28 19:58:56,198 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 150 transitions, 1322 flow [2021-04-28 19:58:56,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:58:56,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:58:56,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 750 transitions. [2021-04-28 19:58:56,204 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7225433526011561 [2021-04-28 19:58:56,204 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 750 transitions. [2021-04-28 19:58:56,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 750 transitions. [2021-04-28 19:58:56,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:58:56,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 750 transitions. [2021-04-28 19:58:56,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:56,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:56,209 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:58:56,209 INFO L185 Difference]: Start difference. First operand has 107 places, 150 transitions, 1310 flow. Second operand 3 states and 750 transitions. [2021-04-28 19:58:56,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 150 transitions, 1322 flow [2021-04-28 19:59:06,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 150 transitions, 1160 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 19:59:06,212 INFO L241 Difference]: Finished difference. Result has 107 places, 150 transitions, 1159 flow [2021-04-28 19:59:06,212 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=1148, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1159, PETRI_PLACES=107, PETRI_TRANSITIONS=150} [2021-04-28 19:59:06,213 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -38 predicate places. [2021-04-28 19:59:06,213 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:59:06,213 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 150 transitions, 1159 flow [2021-04-28 19:59:06,213 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 150 transitions, 1159 flow [2021-04-28 19:59:06,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 107 places, 150 transitions, 1159 flow [2021-04-28 19:59:15,624 INFO L129 PetriNetUnfolder]: 49002/78010 cut-off events. [2021-04-28 19:59:15,624 INFO L130 PetriNetUnfolder]: For 216192/387607 co-relation queries the response was YES. [2021-04-28 19:59:16,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 350692 conditions, 78010 events. 49002/78010 cut-off events. For 216192/387607 co-relation queries the response was YES. Maximal size of possible extension queue 13917. Compared 815075 event pairs, 9862 based on Foata normal form. 480/24410 useless extension candidates. Maximal degree in co-relation 350655. Up to 64075 conditions per place. [2021-04-28 19:59:17,461 INFO L146 LiptonReduction]: Number of co-enabled transitions 5818 [2021-04-28 19:59:17,583 INFO L158 LiptonReduction]: Checked pairs total: 1124 [2021-04-28 19:59:17,584 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:59:17,584 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11371 [2021-04-28 19:59:17,586 INFO L480 AbstractCegarLoop]: Abstraction has has 107 places, 150 transitions, 1159 flow [2021-04-28 19:59:17,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:59:17,587 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:59:17,587 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:59:17,587 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-04-28 19:59:17,587 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:59:17,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:59:17,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1797452428, now seen corresponding path program 1 times [2021-04-28 19:59:17,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:59:17,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744596070] [2021-04-28 19:59:17,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:59:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:59:17,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:59:17,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:59:17,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:59:17,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:59:17,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:59:17,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:59:17,690 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:59:17,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:59:17,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:59:17,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:59:17,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:59:17,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744596070] [2021-04-28 19:59:17,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:59:17,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 19:59:17,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297884889] [2021-04-28 19:59:17,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 19:59:17,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:59:17,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 19:59:17,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 19:59:17,724 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 346 [2021-04-28 19:59:17,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 150 transitions, 1159 flow. Second operand has 6 states, 6 states have (on average 259.8333333333333) internal successors, (1559), 6 states have internal predecessors, (1559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:59:17,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:59:17,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 346 [2021-04-28 19:59:17,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:59:31,381 INFO L129 PetriNetUnfolder]: 48355/80975 cut-off events. [2021-04-28 19:59:31,381 INFO L130 PetriNetUnfolder]: For 183174/6494588 co-relation queries the response was YES. [2021-04-28 19:59:31,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 434485 conditions, 80975 events. 48355/80975 cut-off events. For 183174/6494588 co-relation queries the response was YES. Maximal size of possible extension queue 19251. Compared 895324 event pairs, 1377 based on Foata normal form. 2358/25171 useless extension candidates. Maximal degree in co-relation 434446. Up to 66106 conditions per place. [2021-04-28 19:59:32,467 INFO L132 encePairwiseOnDemand]: 326/346 looper letters, 25 selfloop transitions, 95 changer transitions 12/189 dead transitions. [2021-04-28 19:59:32,467 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 189 transitions, 1748 flow [2021-04-28 19:59:32,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 19:59:32,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 19:59:32,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2457 transitions. [2021-04-28 19:59:32,478 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7890173410404624 [2021-04-28 19:59:32,479 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2457 transitions. [2021-04-28 19:59:32,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2457 transitions. [2021-04-28 19:59:32,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:59:32,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2457 transitions. [2021-04-28 19:59:32,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 273.0) internal successors, (2457), 9 states have internal predecessors, (2457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:59:32,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 346.0) internal successors, (3460), 10 states have internal predecessors, (3460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:59:32,495 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 346.0) internal successors, (3460), 10 states have internal predecessors, (3460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:59:32,495 INFO L185 Difference]: Start difference. First operand has 107 places, 150 transitions, 1159 flow. Second operand 9 states and 2457 transitions. [2021-04-28 19:59:32,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 189 transitions, 1748 flow [2021-04-28 19:59:41,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 189 transitions, 1717 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-04-28 19:59:41,292 INFO L241 Difference]: Finished difference. Result has 114 places, 174 transitions, 1638 flow [2021-04-28 19:59:41,293 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=1044, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1638, PETRI_PLACES=114, PETRI_TRANSITIONS=174} [2021-04-28 19:59:41,293 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -31 predicate places. [2021-04-28 19:59:41,293 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:59:41,293 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 174 transitions, 1638 flow [2021-04-28 19:59:41,294 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 174 transitions, 1638 flow [2021-04-28 19:59:41,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 174 transitions, 1638 flow [2021-04-28 19:59:50,112 INFO L129 PetriNetUnfolder]: 35638/64011 cut-off events. [2021-04-28 19:59:50,113 INFO L130 PetriNetUnfolder]: For 415100/816040 co-relation queries the response was YES. [2021-04-28 19:59:51,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 376159 conditions, 64011 events. 35638/64011 cut-off events. For 415100/816040 co-relation queries the response was YES. Maximal size of possible extension queue 13272. Compared 766539 event pairs, 1487 based on Foata normal form. 119/18760 useless extension candidates. Maximal degree in co-relation 376120. Up to 51526 conditions per place. [2021-04-28 19:59:51,829 INFO L146 LiptonReduction]: Number of co-enabled transitions 6326 [2021-04-28 19:59:51,878 INFO L158 LiptonReduction]: Checked pairs total: 1280 [2021-04-28 19:59:51,879 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:59:51,879 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10586 [2021-04-28 19:59:51,880 INFO L480 AbstractCegarLoop]: Abstraction has has 114 places, 174 transitions, 1638 flow [2021-04-28 19:59:51,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 259.8333333333333) internal successors, (1559), 6 states have internal predecessors, (1559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:59:51,881 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:59:51,881 INFO L263 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] [2021-04-28 19:59:51,881 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-04-28 19:59:51,882 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:59:51,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:59:51,882 INFO L82 PathProgramCache]: Analyzing trace with hash 425195861, now seen corresponding path program 1 times [2021-04-28 19:59:51,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:59:51,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928023311] [2021-04-28 19:59:51,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:59:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:59:51,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:59:51,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:59:51,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:59:51,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:59:51,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:59:51,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:59:52,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:59:52,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:59:52,022 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:59:52,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:59:52,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:59:52,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:59:52,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:59:52,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928023311] [2021-04-28 19:59:52,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:59:52,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 19:59:52,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911268809] [2021-04-28 19:59:52,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 19:59:52,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:59:52,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 19:59:52,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 19:59:52,057 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 346 [2021-04-28 19:59:52,059 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 174 transitions, 1638 flow. Second operand has 7 states, 7 states have (on average 259.85714285714283) internal successors, (1819), 7 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:59:52,059 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:59:52,060 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 346 [2021-04-28 19:59:52,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:00:05,696 INFO L129 PetriNetUnfolder]: 36178/65207 cut-off events. [2021-04-28 20:00:05,696 INFO L130 PetriNetUnfolder]: For 274662/10693219 co-relation queries the response was YES. [2021-04-28 20:00:06,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 439972 conditions, 65207 events. 36178/65207 cut-off events. For 274662/10693219 co-relation queries the response was YES. Maximal size of possible extension queue 16545. Compared 762521 event pairs, 0 based on Foata normal form. 1482/18624 useless extension candidates. Maximal degree in co-relation 439931. Up to 51769 conditions per place. [2021-04-28 20:00:06,845 INFO L132 encePairwiseOnDemand]: 326/346 looper letters, 6 selfloop transitions, 113 changer transitions 20/196 dead transitions. [2021-04-28 20:00:06,846 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 196 transitions, 2107 flow [2021-04-28 20:00:06,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 20:00:06,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 20:00:06,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2981 transitions. [2021-04-28 20:00:06,856 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7832369942196532 [2021-04-28 20:00:06,856 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2981 transitions. [2021-04-28 20:00:06,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2981 transitions. [2021-04-28 20:00:06,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:00:06,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2981 transitions. [2021-04-28 20:00:06,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 271.0) internal successors, (2981), 11 states have internal predecessors, (2981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:00:06,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 346.0) internal successors, (4152), 12 states have internal predecessors, (4152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:00:06,874 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 346.0) internal successors, (4152), 12 states have internal predecessors, (4152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:00:06,874 INFO L185 Difference]: Start difference. First operand has 114 places, 174 transitions, 1638 flow. Second operand 11 states and 2981 transitions. [2021-04-28 20:00:06,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 196 transitions, 2107 flow [2021-04-28 20:03:46,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 196 transitions, 1749 flow, removed 117 selfloop flow, removed 7 redundant places. [2021-04-28 20:03:46,769 INFO L241 Difference]: Finished difference. Result has 120 places, 173 transitions, 1544 flow [2021-04-28 20:03:46,769 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=1262, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1544, PETRI_PLACES=120, PETRI_TRANSITIONS=173} [2021-04-28 20:03:46,769 INFO L343 CegarLoopForPetriNet]: 145 programPoint places, -25 predicate places. [2021-04-28 20:03:46,769 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:03:46,769 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 173 transitions, 1544 flow [2021-04-28 20:03:46,770 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 173 transitions, 1544 flow [2021-04-28 20:03:46,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 118 places, 173 transitions, 1544 flow [2021-04-28 20:03:52,021 INFO L129 PetriNetUnfolder]: 29941/55576 cut-off events. [2021-04-28 20:03:52,022 INFO L130 PetriNetUnfolder]: For 82067/300563 co-relation queries the response was YES. [2021-04-28 20:03:52,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 247832 conditions, 55576 events. 29941/55576 cut-off events. For 82067/300563 co-relation queries the response was YES. Maximal size of possible extension queue 13168. Compared 690229 event pairs, 2 based on Foata normal form. 30/15352 useless extension candidates. Maximal degree in co-relation 247792. Up to 34560 conditions per place. [2021-04-28 20:03:54,506 INFO L146 LiptonReduction]: Number of co-enabled transitions 6238 [2021-04-28 20:03:57,215 INFO L158 LiptonReduction]: Checked pairs total: 1465 [2021-04-28 20:03:57,215 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:03:57,215 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10446 [2021-04-28 20:03:57,217 INFO L480 AbstractCegarLoop]: Abstraction has has 118 places, 173 transitions, 1544 flow [2021-04-28 20:03:57,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 259.85714285714283) internal successors, (1819), 7 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:03:57,217 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:03:57,218 INFO L263 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] [2021-04-28 20:03:57,218 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-04-28 20:03:57,218 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:03:57,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:03:57,218 INFO L82 PathProgramCache]: Analyzing trace with hash 20309020, now seen corresponding path program 1 times [2021-04-28 20:03:57,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:03:57,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547011248] [2021-04-28 20:03:57,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:03:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:03:57,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:03:57,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 20:03:57,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:03:57,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:03:57,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:03:57,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 20:03:57,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:03:57,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 20:03:57,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:03:57,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 20:03:57,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:03:57,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547011248] [2021-04-28 20:03:57,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:03:57,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 20:03:57,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320211885] [2021-04-28 20:03:57,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 20:03:57,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:03:57,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 20:03:57,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-04-28 20:03:57,416 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 346 [2021-04-28 20:03:57,418 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 173 transitions, 1544 flow. Second operand has 7 states, 7 states have (on average 197.42857142857142) internal successors, (1382), 7 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:03:57,418 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:03:57,418 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 346 [2021-04-28 20:03:57,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:04:16,171 INFO L129 PetriNetUnfolder]: 68638/128946 cut-off events. [2021-04-28 20:04:16,171 INFO L130 PetriNetUnfolder]: For 218602/1599574 co-relation queries the response was YES. [2021-04-28 20:04:17,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 576032 conditions, 128946 events. 68638/128946 cut-off events. For 218602/1599574 co-relation queries the response was YES. Maximal size of possible extension queue 32148. Compared 1708074 event pairs, 10 based on Foata normal form. 220/33277 useless extension candidates. Maximal degree in co-relation 575990. Up to 77760 conditions per place. [2021-04-28 20:04:17,746 INFO L132 encePairwiseOnDemand]: 339/346 looper letters, 69 selfloop transitions, 23 changer transitions 39/265 dead transitions. [2021-04-28 20:04:17,747 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 265 transitions, 2707 flow [2021-04-28 20:04:17,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 20:04:17,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 20:04:17,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1806 transitions. [2021-04-28 20:04:17,757 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5799614643545279 [2021-04-28 20:04:17,757 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1806 transitions. [2021-04-28 20:04:17,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1806 transitions. [2021-04-28 20:04:17,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:04:17,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1806 transitions. [2021-04-28 20:04:17,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 200.66666666666666) internal successors, (1806), 9 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:04:17,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 346.0) internal successors, (3460), 10 states have internal predecessors, (3460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:04:17,768 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 346.0) internal successors, (3460), 10 states have internal predecessors, (3460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:04:17,768 INFO L185 Difference]: Start difference. First operand has 118 places, 173 transitions, 1544 flow. Second operand 9 states and 1806 transitions. [2021-04-28 20:04:17,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 265 transitions, 2707 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown