/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/mix029_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 19:41:28,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 19:41:28,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 19:41:28,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 19:41:28,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 19:41:28,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 19:41:28,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 19:41:28,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 19:41:28,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 19:41:28,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 19:41:28,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 19:41:28,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 19:41:28,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 19:41:28,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 19:41:28,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 19:41:28,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 19:41:28,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 19:41:28,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 19:41:28,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 19:41:28,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 19:41:28,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 19:41:28,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 19:41:28,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 19:41:28,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 19:41:28,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-28 19:41:28,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-28 19:41:28,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-28 19:41:28,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-28 19:41:28,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-28 19:41:28,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-28 19:41:28,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 19:41:28,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 19:41:28,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 19:41:28,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 19:41:28,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 19:41:28,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 19:41:28,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 19:41:28,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 19:41:28,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 19:41:28,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 19:41:28,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 19:41:28,905 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 19:41:28,959 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 19:41:28,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 19:41:28,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 19:41:28,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 19:41:28,965 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 19:41:28,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 19:41:28,966 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 19:41:28,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 19:41:28,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 19:41:28,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 19:41:28,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 19:41:28,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 19:41:28,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 19:41:28,968 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 19:41:28,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 19:41:28,969 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 19:41:28,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 19:41:28,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 19:41:28,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 19:41:28,969 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 19:41:28,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 19:41:28,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 19:41:28,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 19:41:28,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 19:41:28,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 19:41:28,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 19:41:28,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 19:41:28,971 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 19:41:28,971 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 19:41:28,972 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 19:41:28,972 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 19:41:29,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 19:41:29,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 19:41:29,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 19:41:29,390 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 19:41:29,390 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 19:41:29,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix029_rmo.opt.i [2021-04-28 19:41:29,483 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25aee2de7/f21852cb09ff4754a0a8c594fe019d71/FLAG28e50bbd1 [2021-04-28 19:41:30,225 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 19:41:30,226 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix029_rmo.opt.i [2021-04-28 19:41:30,246 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25aee2de7/f21852cb09ff4754a0a8c594fe019d71/FLAG28e50bbd1 [2021-04-28 19:41:30,515 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25aee2de7/f21852cb09ff4754a0a8c594fe019d71 [2021-04-28 19:41:30,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 19:41:30,575 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 19:41:30,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 19:41:30,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 19:41:30,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 19:41:30,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 07:41:30" (1/1) ... [2021-04-28 19:41:30,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1958760b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:41:30, skipping insertion in model container [2021-04-28 19:41:30,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 07:41:30" (1/1) ... [2021-04-28 19:41:30,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 19:41:30,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 19:41:30,808 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/mix029_rmo.opt.i[948,961] [2021-04-28 19:41:31,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 19:41:31,104 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 19:41:31,118 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/mix029_rmo.opt.i[948,961] [2021-04-28 19:41:31,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 19:41:31,324 INFO L208 MainTranslator]: Completed translation [2021-04-28 19:41:31,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:41:31 WrapperNode [2021-04-28 19:41:31,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 19:41:31,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 19:41:31,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 19:41:31,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 19:41:31,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:41:31" (1/1) ... [2021-04-28 19:41:31,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:41:31" (1/1) ... [2021-04-28 19:41:31,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 19:41:31,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 19:41:31,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 19:41:31,432 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 19:41:31,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:41:31" (1/1) ... [2021-04-28 19:41:31,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:41:31" (1/1) ... [2021-04-28 19:41:31,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:41:31" (1/1) ... [2021-04-28 19:41:31,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:41:31" (1/1) ... [2021-04-28 19:41:31,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:41:31" (1/1) ... [2021-04-28 19:41:31,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:41:31" (1/1) ... [2021-04-28 19:41:31,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:41:31" (1/1) ... [2021-04-28 19:41:31,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 19:41:31,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 19:41:31,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 19:41:31,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 19:41:31,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:41:31" (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 19:41:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 19:41:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 19:41:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 19:41:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 19:41:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 19:41:31,591 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 19:41:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 19:41:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 19:41:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 19:41:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 19:41:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 19:41:31,592 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 19:41:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 19:41:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 19:41:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 19:41:31,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 19:41:31,595 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 19:41:33,882 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 19:41:33,882 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 19:41:33,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 07:41:33 BoogieIcfgContainer [2021-04-28 19:41:33,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 19:41:33,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 19:41:33,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 19:41:33,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 19:41:33,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 07:41:30" (1/3) ... [2021-04-28 19:41:33,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9acaab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 07:41:33, skipping insertion in model container [2021-04-28 19:41:33,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:41:31" (2/3) ... [2021-04-28 19:41:33,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9acaab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 07:41:33, skipping insertion in model container [2021-04-28 19:41:33,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 07:41:33" (3/3) ... [2021-04-28 19:41:33,893 INFO L111 eAbstractionObserver]: Analyzing ICFG mix029_rmo.opt.i [2021-04-28 19:41:33,900 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 19:41:33,905 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 19:41:33,906 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 19:41:33,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,942 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,942 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,943 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,943 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,943 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,943 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,943 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,944 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,945 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,945 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,946 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,946 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,946 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,947 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,947 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,947 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,947 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,947 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,948 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,948 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,948 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,948 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,949 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,949 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,949 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,949 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,950 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,950 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,950 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,951 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,951 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,951 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,951 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,951 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,952 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,952 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,952 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,952 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,952 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,953 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,953 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,953 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,953 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,953 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,954 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,954 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,954 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,954 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,954 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,955 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,955 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,955 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,955 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,956 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,956 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,956 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,956 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,956 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,956 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,957 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,957 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,957 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,958 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,958 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,958 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,958 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,959 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,959 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,959 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,959 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,959 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,960 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,960 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,960 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,960 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,960 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,960 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,961 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,961 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,961 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,961 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,962 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,962 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,962 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,962 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,963 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,963 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,963 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,963 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,966 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,966 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,966 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,966 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,967 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,967 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,967 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,967 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,967 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,968 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,968 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,968 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,970 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,970 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,970 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,971 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,971 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,971 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,971 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,971 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,971 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,972 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,974 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,975 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,975 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,975 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,976 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,976 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,977 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,977 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,977 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,977 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,977 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,978 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,978 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,978 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:41:33,979 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 19:41:34,002 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 19:41:34,028 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 19:41:34,028 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 19:41:34,028 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 19:41:34,028 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 19:41:34,028 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 19:41:34,028 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 19:41:34,029 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 19:41:34,029 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 19:41:34,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 116 transitions, 252 flow [2021-04-28 19:41:34,094 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-04-28 19:41:34,094 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:41:34,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 19:41:34,100 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 116 transitions, 252 flow [2021-04-28 19:41:34,107 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 112 transitions, 236 flow [2021-04-28 19:41:34,108 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:41:34,123 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 112 transitions, 236 flow [2021-04-28 19:41:34,128 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 112 transitions, 236 flow [2021-04-28 19:41:34,131 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 236 flow [2021-04-28 19:41:34,160 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-04-28 19:41:34,161 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:41:34,162 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 19:41:34,167 INFO L146 LiptonReduction]: Number of co-enabled transitions 2630 [2021-04-28 19:41:37,362 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 19:41:37,937 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2021-04-28 19:41:38,140 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 19:41:39,229 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 19:41:39,700 WARN L205 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 19:41:41,691 WARN L205 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 19:41:42,589 WARN L205 SmtUtils]: Spent 895.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 19:41:45,939 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 19:41:46,386 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 19:41:48,440 WARN L205 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 19:41:49,484 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 19:41:50,652 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 234 DAG size of output: 194 [2021-04-28 19:41:51,146 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-04-28 19:41:53,381 WARN L205 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 318 DAG size of output: 274 [2021-04-28 19:41:54,394 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 271 [2021-04-28 19:41:55,575 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 19:41:56,105 WARN L205 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 19:41:58,389 WARN L205 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 19:41:59,442 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 19:42:03,698 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 233 DAG size of output: 192 [2021-04-28 19:42:04,247 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 19:42:06,679 WARN L205 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 19:42:07,981 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 19:42:09,437 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 232 DAG size of output: 191 [2021-04-28 19:42:10,110 WARN L205 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 19:42:13,073 WARN L205 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 316 DAG size of output: 271 [2021-04-28 19:42:14,516 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 19:42:16,184 WARN L205 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 233 DAG size of output: 192 [2021-04-28 19:42:16,924 WARN L205 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 19:42:20,187 WARN L205 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 19:42:21,542 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 19:42:23,056 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 19:42:23,727 WARN L205 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 19:42:26,906 WARN L205 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 19:42:28,341 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 19:42:35,296 WARN L205 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 19:42:36,026 WARN L205 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 19:42:39,390 WARN L205 SmtUtils]: Spent 3.36 s on a formula simplification. DAG size of input: 314 DAG size of output: 269 [2021-04-28 19:42:40,887 WARN L205 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 266 [2021-04-28 19:42:42,711 WARN L205 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2021-04-28 19:42:43,529 WARN L205 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-04-28 19:42:47,104 WARN L205 SmtUtils]: Spent 3.57 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 19:42:48,749 WARN L205 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 19:42:50,659 WARN L205 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 19:42:51,519 WARN L205 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 19:42:55,356 WARN L205 SmtUtils]: Spent 3.83 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 19:42:57,168 WARN L205 SmtUtils]: Spent 1.81 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 19:43:02,766 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:43:02,907 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:43:03,064 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:43:03,216 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:43:03,341 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:03,463 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:03,604 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:03,745 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:03,896 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:43:04,047 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:43:04,204 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:43:04,357 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:43:04,508 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:43:04,643 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:43:04,783 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:43:04,919 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:43:05,097 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:43:05,269 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:43:05,433 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:43:05,601 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:43:05,730 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:05,864 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:05,999 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:06,131 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:06,268 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:43:06,391 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:43:06,512 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:43:06,639 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:43:06,764 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:43:06,893 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:43:07,013 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:43:07,144 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:43:07,313 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:43:07,489 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:43:07,666 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:43:07,847 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:43:08,316 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:08,444 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:08,573 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:08,703 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:08,827 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:43:08,952 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:43:09,076 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:43:09,201 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:43:09,700 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:43:09,812 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:43:09,924 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:43:10,037 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:43:10,140 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:43:10,245 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:43:10,348 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:43:10,450 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:43:10,656 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 19:43:10,847 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 19:43:11,039 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 19:43:11,232 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 19:43:11,359 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:11,487 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:11,614 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:11,742 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:11,870 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:11,999 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:12,128 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:12,259 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:12,387 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:12,516 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:12,644 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:12,772 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:12,891 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:43:13,009 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:43:13,127 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:43:13,240 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:43:13,369 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:13,497 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:13,621 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:13,749 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:13,962 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 19:43:14,168 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 19:43:14,376 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 19:43:14,584 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 19:43:14,786 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:43:14,997 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:43:15,217 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:43:15,435 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:43:15,674 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 19:43:15,931 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 19:43:16,175 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 19:43:16,410 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 19:43:16,568 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:16,722 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:16,860 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:17,011 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:43:17,201 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:43:17,400 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:43:17,588 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:43:17,778 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:43:18,007 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:43:18,236 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:43:18,456 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:43:18,668 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:43:18,905 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:43:19,120 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:43:19,343 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:43:19,576 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:43:19,778 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:43:19,979 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:43:20,201 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:43:20,407 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:43:20,632 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:43:20,844 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:43:21,078 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:43:21,308 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:43:21,491 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:43:21,669 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:43:21,846 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:43:22,026 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:43:22,291 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:43:22,537 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:43:22,810 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:43:23,073 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:43:23,353 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:43:23,646 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:43:23,904 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:43:24,164 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:43:24,461 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:43:24,749 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:43:25,047 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:43:25,347 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:43:25,617 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:43:25,884 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:43:26,148 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:43:26,411 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:43:26,643 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:43:26,870 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:43:27,113 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:43:27,317 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:43:27,635 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:43:27,918 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:43:28,194 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:43:28,473 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:43:28,748 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:29,038 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:29,318 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:29,599 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:29,907 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:43:30,180 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:43:30,495 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:43:30,777 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:43:30,971 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:43:31,169 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:43:31,350 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:43:31,535 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:43:31,741 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:43:31,955 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:43:32,146 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:43:32,346 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:43:32,586 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:43:32,831 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:43:33,085 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:43:33,325 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:43:33,588 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:43:33,847 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:43:34,128 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:43:34,409 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:43:34,711 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:35,023 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:35,309 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:35,591 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:36,383 WARN L205 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2021-04-28 19:43:36,738 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-04-28 19:43:37,451 WARN L205 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2021-04-28 19:43:37,790 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-04-28 19:43:38,604 WARN L205 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-04-28 19:43:38,978 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-04-28 19:43:39,775 WARN L205 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-04-28 19:43:40,165 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-04-28 19:43:40,457 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:40,747 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:41,029 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:41,307 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:41,573 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:41,833 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:42,103 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:42,412 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:42,700 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:42,980 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:43,254 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:43,536 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:43:43,776 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:43:44,033 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:43:44,269 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:43:44,514 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:43:44,558 INFO L158 LiptonReduction]: Checked pairs total: 26113 [2021-04-28 19:43:44,559 INFO L160 LiptonReduction]: Total number of compositions: 275 [2021-04-28 19:43:44,565 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 130458 [2021-04-28 19:43:44,611 INFO L129 PetriNetUnfolder]: 0/82 cut-off events. [2021-04-28 19:43:44,611 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:43:44,611 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:43:44,612 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:43:44,612 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 19:43:44,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:43:44,617 INFO L82 PathProgramCache]: Analyzing trace with hash -914108323, now seen corresponding path program 1 times [2021-04-28 19:43:44,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:43:44,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813742657] [2021-04-28 19:43:44,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:43:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:43:44,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:43:44,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:43:44,947 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 19:43:44,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813742657] [2021-04-28 19:43:44,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:43:44,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:43:44,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725952389] [2021-04-28 19:43:44,959 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:43:44,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:43:44,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:43:44,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:43:44,982 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 391 [2021-04-28 19:43:44,991 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 144 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 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 19:43:44,991 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:43:44,991 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 391 [2021-04-28 19:43:44,993 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:43:45,588 INFO L129 PetriNetUnfolder]: 329/808 cut-off events. [2021-04-28 19:43:45,588 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:43:45,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1367 conditions, 808 events. 329/808 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 5939 event pairs, 195 based on Foata normal form. 11/397 useless extension candidates. Maximal degree in co-relation 1285. Up to 401 conditions per place. [2021-04-28 19:43:45,597 INFO L132 encePairwiseOnDemand]: 372/391 looper letters, 9 selfloop transitions, 2 changer transitions 103/157 dead transitions. [2021-04-28 19:43:45,597 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 157 transitions, 428 flow [2021-04-28 19:43:45,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:43:45,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:43:45,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 963 transitions. [2021-04-28 19:43:45,621 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8209718670076727 [2021-04-28 19:43:45,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 963 transitions. [2021-04-28 19:43:45,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 963 transitions. [2021-04-28 19:43:45,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:43:45,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 963 transitions. [2021-04-28 19:43:45,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.0) internal successors, (963), 3 states have internal predecessors, (963), 0 states have call successors, (0), 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 19:43:45,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 0 states have call successors, (0), 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 19:43:45,649 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 0 states have call successors, (0), 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 19:43:45,651 INFO L185 Difference]: Start difference. First operand has 155 places, 144 transitions, 300 flow. Second operand 3 states and 963 transitions. [2021-04-28 19:43:45,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 157 transitions, 428 flow [2021-04-28 19:43:45,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 157 transitions, 424 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 19:43:45,660 INFO L241 Difference]: Finished difference. Result has 150 places, 50 transitions, 112 flow [2021-04-28 19:43:45,663 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=150, PETRI_TRANSITIONS=50} [2021-04-28 19:43:45,663 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -5 predicate places. [2021-04-28 19:43:45,664 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:43:45,664 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 50 transitions, 112 flow [2021-04-28 19:43:45,664 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 50 transitions, 112 flow [2021-04-28 19:43:45,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 50 transitions, 112 flow [2021-04-28 19:43:45,672 INFO L129 PetriNetUnfolder]: 0/50 cut-off events. [2021-04-28 19:43:45,672 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:43:45,673 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 15. Compared 172 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 19:43:45,674 INFO L146 LiptonReduction]: Number of co-enabled transitions 1494 [2021-04-28 19:43:45,992 INFO L158 LiptonReduction]: Checked pairs total: 1518 [2021-04-28 19:43:45,992 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:43:45,992 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 328 [2021-04-28 19:43:45,994 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 112 flow [2021-04-28 19:43:45,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 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 19:43:45,995 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:43:45,996 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:43:45,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 19:43:45,996 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 19:43:45,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:43:45,997 INFO L82 PathProgramCache]: Analyzing trace with hash -891907862, now seen corresponding path program 1 times [2021-04-28 19:43:45,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:43:45,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807212448] [2021-04-28 19:43:45,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:43:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:43:46,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:43:46,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:43:46,121 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 19:43:46,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807212448] [2021-04-28 19:43:46,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:43:46,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:43:46,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52518458] [2021-04-28 19:43:46,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:43:46,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:43:46,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:43:46,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:43:46,126 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 391 [2021-04-28 19:43:46,127 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 327.6666666666667) internal successors, (983), 3 states have internal predecessors, (983), 0 states have call successors, (0), 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 19:43:46,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:43:46,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 391 [2021-04-28 19:43:46,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:43:46,160 INFO L129 PetriNetUnfolder]: 7/78 cut-off events. [2021-04-28 19:43:46,161 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:43:46,161 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 14. Compared 263 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 19:43:46,162 INFO L132 encePairwiseOnDemand]: 387/391 looper letters, 4 selfloop transitions, 3 changer transitions 2/52 dead transitions. [2021-04-28 19:43:46,162 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 52 transitions, 130 flow [2021-04-28 19:43:46,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:43:46,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:43:46,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 989 transitions. [2021-04-28 19:43:46,170 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8431372549019608 [2021-04-28 19:43:46,170 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 989 transitions. [2021-04-28 19:43:46,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 989 transitions. [2021-04-28 19:43:46,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:43:46,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 989 transitions. [2021-04-28 19:43:46,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.6666666666667) internal successors, (989), 3 states have internal predecessors, (989), 0 states have call successors, (0), 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 19:43:46,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 0 states have call successors, (0), 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 19:43:46,180 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 0 states have call successors, (0), 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 19:43:46,180 INFO L185 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 989 transitions. [2021-04-28 19:43:46,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 52 transitions, 130 flow [2021-04-28 19:43:46,181 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 19:43:46,182 INFO L241 Difference]: Finished difference. Result has 62 places, 50 transitions, 123 flow [2021-04-28 19:43:46,183 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, 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 19:43:46,183 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -93 predicate places. [2021-04-28 19:43:46,183 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:43:46,184 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 50 transitions, 123 flow [2021-04-28 19:43:46,184 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 50 transitions, 123 flow [2021-04-28 19:43:46,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 50 transitions, 123 flow [2021-04-28 19:43:46,195 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2021-04-28 19:43:46,195 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:43:46,195 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 15. Compared 221 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 19:43:46,197 INFO L146 LiptonReduction]: Number of co-enabled transitions 1504 [2021-04-28 19:43:46,305 INFO L158 LiptonReduction]: Checked pairs total: 1416 [2021-04-28 19:43:46,305 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:43:46,305 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 122 [2021-04-28 19:43:46,306 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 123 flow [2021-04-28 19:43:46,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 327.6666666666667) internal successors, (983), 3 states have internal predecessors, (983), 0 states have call successors, (0), 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 19:43:46,307 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:43:46,308 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:43:46,308 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 19:43:46,308 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 19:43:46,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:43:46,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1881346864, now seen corresponding path program 1 times [2021-04-28 19:43:46,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:43:46,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702460615] [2021-04-28 19:43:46,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:43:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:43:46,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:43:46,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:43:46,402 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 19:43:46,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702460615] [2021-04-28 19:43:46,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:43:46,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:43:46,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219656135] [2021-04-28 19:43:46,403 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:43:46,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:43:46,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:43:46,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:43:46,406 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 391 [2021-04-28 19:43:46,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 0 states have call successors, (0), 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 19:43:46,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:43:46,408 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 391 [2021-04-28 19:43:46,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:43:46,427 INFO L129 PetriNetUnfolder]: 2/58 cut-off events. [2021-04-28 19:43:46,427 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-04-28 19:43:46,428 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 189 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 19:43:46,428 INFO L132 encePairwiseOnDemand]: 388/391 looper letters, 1 selfloop transitions, 2 changer transitions 1/50 dead transitions. [2021-04-28 19:43:46,429 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 50 transitions, 129 flow [2021-04-28 19:43:46,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:43:46,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:43:46,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 820 transitions. [2021-04-28 19:43:46,435 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6990622335890878 [2021-04-28 19:43:46,435 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 820 transitions. [2021-04-28 19:43:46,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 820 transitions. [2021-04-28 19:43:46,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:43:46,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 820 transitions. [2021-04-28 19:43:46,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 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 19:43:46,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 0 states have call successors, (0), 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 19:43:46,443 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 0 states have call successors, (0), 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 19:43:46,443 INFO L185 Difference]: Start difference. First operand has 60 places, 50 transitions, 123 flow. Second operand 3 states and 820 transitions. [2021-04-28 19:43:46,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 50 transitions, 129 flow [2021-04-28 19:43:46,444 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 19:43:46,445 INFO L241 Difference]: Finished difference. Result has 62 places, 49 transitions, 126 flow [2021-04-28 19:43:46,445 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, 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 19:43:46,446 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -93 predicate places. [2021-04-28 19:43:46,446 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:43:46,446 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 49 transitions, 126 flow [2021-04-28 19:43:46,446 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 49 transitions, 126 flow [2021-04-28 19:43:46,447 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 126 flow [2021-04-28 19:43:46,455 INFO L129 PetriNetUnfolder]: 2/57 cut-off events. [2021-04-28 19:43:46,456 INFO L130 PetriNetUnfolder]: For 2/3 co-relation queries the response was YES. [2021-04-28 19:43:46,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 57 events. 2/57 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 200 event pairs, 0 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 19:43:46,458 INFO L146 LiptonReduction]: Number of co-enabled transitions 1438 [2021-04-28 19:43:46,537 INFO L158 LiptonReduction]: Checked pairs total: 1323 [2021-04-28 19:43:46,537 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:43:46,538 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 92 [2021-04-28 19:43:46,539 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 49 transitions, 126 flow [2021-04-28 19:43:46,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 0 states have call successors, (0), 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 19:43:46,540 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:43:46,540 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:43:46,540 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 19:43:46,540 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 19:43:46,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:43:46,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1807785011, now seen corresponding path program 1 times [2021-04-28 19:43:46,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:43:46,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488465840] [2021-04-28 19:43:46,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:43:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:43:46,659 INFO L142 QuantifierPusher]: treesize reduction 16, result has 46.7 percent of original size [2021-04-28 19:43:46,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 19:43:46,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:43:46,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-28 19:43:46,702 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 19:43:46,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488465840] [2021-04-28 19:43:46,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:43:46,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 19:43:46,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794157630] [2021-04-28 19:43:46,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:43:46,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:43:46,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:43:46,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:43:46,707 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 391 [2021-04-28 19:43:46,709 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 49 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 230.75) internal successors, (923), 4 states have internal predecessors, (923), 0 states have call successors, (0), 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 19:43:46,709 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:43:46,709 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 391 [2021-04-28 19:43:46,709 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:43:46,880 INFO L129 PetriNetUnfolder]: 92/247 cut-off events. [2021-04-28 19:43:46,880 INFO L130 PetriNetUnfolder]: For 52/73 co-relation queries the response was YES. [2021-04-28 19:43:46,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 465 conditions, 247 events. 92/247 cut-off events. For 52/73 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1279 event pairs, 42 based on Foata normal form. 7/184 useless extension candidates. Maximal degree in co-relation 453. Up to 123 conditions per place. [2021-04-28 19:43:46,884 INFO L132 encePairwiseOnDemand]: 388/391 looper letters, 10 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2021-04-28 19:43:46,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 53 transitions, 158 flow [2021-04-28 19:43:46,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:43:46,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:43:46,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 703 transitions. [2021-04-28 19:43:46,890 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5993179880647911 [2021-04-28 19:43:46,890 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 703 transitions. [2021-04-28 19:43:46,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 703 transitions. [2021-04-28 19:43:46,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:43:46,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 703 transitions. [2021-04-28 19:43:46,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 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 19:43:46,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 0 states have call successors, (0), 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 19:43:46,898 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 0 states have call successors, (0), 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 19:43:46,899 INFO L185 Difference]: Start difference. First operand has 61 places, 49 transitions, 126 flow. Second operand 3 states and 703 transitions. [2021-04-28 19:43:46,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 53 transitions, 158 flow [2021-04-28 19:43:46,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 53 transitions, 154 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 19:43:46,902 INFO L241 Difference]: Finished difference. Result has 62 places, 49 transitions, 130 flow [2021-04-28 19:43:46,902 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=62, PETRI_TRANSITIONS=49} [2021-04-28 19:43:46,902 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -93 predicate places. [2021-04-28 19:43:46,902 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:43:46,902 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 49 transitions, 130 flow [2021-04-28 19:43:46,903 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 49 transitions, 130 flow [2021-04-28 19:43:46,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 49 transitions, 130 flow [2021-04-28 19:43:46,913 INFO L129 PetriNetUnfolder]: 2/57 cut-off events. [2021-04-28 19:43:46,913 INFO L130 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2021-04-28 19:43:46,913 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 57 events. 2/57 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 202 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 76. Up to 8 conditions per place. [2021-04-28 19:43:46,915 INFO L146 LiptonReduction]: Number of co-enabled transitions 1434 [2021-04-28 19:43:47,208 INFO L158 LiptonReduction]: Checked pairs total: 1255 [2021-04-28 19:43:47,209 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:43:47,209 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 307 [2021-04-28 19:43:47,210 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 49 transitions, 130 flow [2021-04-28 19:43:47,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 230.75) internal successors, (923), 4 states have internal predecessors, (923), 0 states have call successors, (0), 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 19:43:47,211 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:43:47,211 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:43:47,211 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 19:43:47,212 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 19:43:47,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:43:47,212 INFO L82 PathProgramCache]: Analyzing trace with hash 124084352, now seen corresponding path program 1 times [2021-04-28 19:43:47,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:43:47,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219122170] [2021-04-28 19:43:47,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:43:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:43:47,352 INFO L142 QuantifierPusher]: treesize reduction 16, result has 40.7 percent of original size [2021-04-28 19:43:47,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 19:43:47,378 INFO L142 QuantifierPusher]: treesize reduction 31, result has 27.9 percent of original size [2021-04-28 19:43:47,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 19:43:47,403 INFO L142 QuantifierPusher]: treesize reduction 15, result has 51.6 percent of original size [2021-04-28 19:43:47,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 19:43:47,414 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 19:43:47,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219122170] [2021-04-28 19:43:47,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:43:47,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 19:43:47,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354322978] [2021-04-28 19:43:47,416 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:43:47,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:43:47,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:43:47,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:43:47,418 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 391 [2021-04-28 19:43:47,420 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 49 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 0 states have call successors, (0), 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 19:43:47,420 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:43:47,420 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 391 [2021-04-28 19:43:47,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:43:47,692 INFO L129 PetriNetUnfolder]: 92/290 cut-off events. [2021-04-28 19:43:47,693 INFO L130 PetriNetUnfolder]: For 171/215 co-relation queries the response was YES. [2021-04-28 19:43:47,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 290 events. 92/290 cut-off events. For 171/215 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1675 event pairs, 12 based on Foata normal form. 15/212 useless extension candidates. Maximal degree in co-relation 529. Up to 107 conditions per place. [2021-04-28 19:43:47,697 INFO L132 encePairwiseOnDemand]: 385/391 looper letters, 12 selfloop transitions, 5 changer transitions 0/58 dead transitions. [2021-04-28 19:43:47,698 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 58 transitions, 182 flow [2021-04-28 19:43:47,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:43:47,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:43:47,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 922 transitions. [2021-04-28 19:43:47,705 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5895140664961637 [2021-04-28 19:43:47,705 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 922 transitions. [2021-04-28 19:43:47,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 922 transitions. [2021-04-28 19:43:47,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:43:47,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 922 transitions. [2021-04-28 19:43:47,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 230.5) internal successors, (922), 4 states have internal predecessors, (922), 0 states have call successors, (0), 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 19:43:47,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 391.0) internal successors, (1955), 5 states have internal predecessors, (1955), 0 states have call successors, (0), 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 19:43:47,715 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 391.0) internal successors, (1955), 5 states have internal predecessors, (1955), 0 states have call successors, (0), 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 19:43:47,715 INFO L185 Difference]: Start difference. First operand has 62 places, 49 transitions, 130 flow. Second operand 4 states and 922 transitions. [2021-04-28 19:43:47,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 58 transitions, 182 flow [2021-04-28 19:43:47,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 58 transitions, 178 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 19:43:47,719 INFO L241 Difference]: Finished difference. Result has 64 places, 52 transitions, 154 flow [2021-04-28 19:43:47,719 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=154, PETRI_PLACES=64, PETRI_TRANSITIONS=52} [2021-04-28 19:43:47,719 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -91 predicate places. [2021-04-28 19:43:47,719 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:43:47,719 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 52 transitions, 154 flow [2021-04-28 19:43:47,720 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 52 transitions, 154 flow [2021-04-28 19:43:47,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 52 transitions, 154 flow [2021-04-28 19:43:47,747 INFO L129 PetriNetUnfolder]: 28/144 cut-off events. [2021-04-28 19:43:47,748 INFO L130 PetriNetUnfolder]: For 69/79 co-relation queries the response was YES. [2021-04-28 19:43:47,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 144 events. 28/144 cut-off events. For 69/79 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 698 event pairs, 11 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 256. Up to 47 conditions per place. [2021-04-28 19:43:47,753 INFO L146 LiptonReduction]: Number of co-enabled transitions 1582 [2021-04-28 19:43:47,919 INFO L158 LiptonReduction]: Checked pairs total: 676 [2021-04-28 19:43:47,920 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:43:47,920 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 201 [2021-04-28 19:43:47,921 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 154 flow [2021-04-28 19:43:47,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 227.0) internal successors, (908), 4 states have internal predecessors, (908), 0 states have call successors, (0), 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 19:43:47,922 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:43:47,922 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:43:47,922 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 19:43:47,923 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 19:43:47,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:43:47,923 INFO L82 PathProgramCache]: Analyzing trace with hash -168744037, now seen corresponding path program 1 times [2021-04-28 19:43:47,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:43:47,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16238593] [2021-04-28 19:43:47,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:43:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:43:48,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:43:48,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:43:48,037 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:43:48,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:43:48,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:43:48,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:43:48,063 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 19:43:48,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16238593] [2021-04-28 19:43:48,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:43:48,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:43:48,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782053015] [2021-04-28 19:43:48,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:43:48,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:43:48,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:43:48,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:43:48,067 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 391 [2021-04-28 19:43:48,069 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 154 flow. Second operand has 4 states, 4 states have (on average 294.75) internal successors, (1179), 4 states have internal predecessors, (1179), 0 states have call successors, (0), 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 19:43:48,069 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:43:48,069 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 391 [2021-04-28 19:43:48,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:43:52,681 INFO L129 PetriNetUnfolder]: 19737/28991 cut-off events. [2021-04-28 19:43:52,681 INFO L130 PetriNetUnfolder]: For 3590/4001 co-relation queries the response was YES. [2021-04-28 19:43:52,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59741 conditions, 28991 events. 19737/28991 cut-off events. For 3590/4001 co-relation queries the response was YES. Maximal size of possible extension queue 5856. Compared 247320 event pairs, 10586 based on Foata normal form. 544/8559 useless extension candidates. Maximal degree in co-relation 59727. Up to 17962 conditions per place. [2021-04-28 19:43:53,005 INFO L132 encePairwiseOnDemand]: 371/391 looper letters, 34 selfloop transitions, 33 changer transitions 0/96 dead transitions. [2021-04-28 19:43:53,005 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 96 transitions, 376 flow [2021-04-28 19:43:53,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 19:43:53,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 19:43:53,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1536 transitions. [2021-04-28 19:43:53,013 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7856777493606139 [2021-04-28 19:43:53,014 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1536 transitions. [2021-04-28 19:43:53,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1536 transitions. [2021-04-28 19:43:53,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:43:53,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1536 transitions. [2021-04-28 19:43:53,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 307.2) internal successors, (1536), 5 states have internal predecessors, (1536), 0 states have call successors, (0), 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 19:43:53,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 391.0) internal successors, (2346), 6 states have internal predecessors, (2346), 0 states have call successors, (0), 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 19:43:53,029 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 391.0) internal successors, (2346), 6 states have internal predecessors, (2346), 0 states have call successors, (0), 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 19:43:53,029 INFO L185 Difference]: Start difference. First operand has 64 places, 52 transitions, 154 flow. Second operand 5 states and 1536 transitions. [2021-04-28 19:43:53,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 96 transitions, 376 flow [2021-04-28 19:43:53,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 96 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 19:43:53,043 INFO L241 Difference]: Finished difference. Result has 69 places, 83 transitions, 394 flow [2021-04-28 19:43:53,043 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=394, PETRI_PLACES=69, PETRI_TRANSITIONS=83} [2021-04-28 19:43:53,044 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -86 predicate places. [2021-04-28 19:43:53,044 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:43:53,044 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 83 transitions, 394 flow [2021-04-28 19:43:53,044 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 83 transitions, 394 flow [2021-04-28 19:43:53,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 83 transitions, 394 flow [2021-04-28 19:43:56,445 INFO L129 PetriNetUnfolder]: 17529/25973 cut-off events. [2021-04-28 19:43:56,445 INFO L130 PetriNetUnfolder]: For 5820/121582 co-relation queries the response was YES. [2021-04-28 19:43:56,620 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74699 conditions, 25973 events. 17529/25973 cut-off events. For 5820/121582 co-relation queries the response was YES. Maximal size of possible extension queue 4798. Compared 222107 event pairs, 10029 based on Foata normal form. 39/7400 useless extension candidates. Maximal degree in co-relation 74684. Up to 24476 conditions per place. [2021-04-28 19:43:56,916 INFO L146 LiptonReduction]: Number of co-enabled transitions 2342 [2021-04-28 19:43:57,691 INFO L158 LiptonReduction]: Checked pairs total: 1137 [2021-04-28 19:43:57,692 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:43:57,692 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4648 [2021-04-28 19:43:57,696 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 83 transitions, 394 flow [2021-04-28 19:43:57,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 294.75) internal successors, (1179), 4 states have internal predecessors, (1179), 0 states have call successors, (0), 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 19:43:57,696 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:43:57,697 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 19:43:57,697 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 19:43:57,697 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 19:43:57,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:43:57,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1969204501, now seen corresponding path program 1 times [2021-04-28 19:43:57,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:43:57,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684477321] [2021-04-28 19:43:57,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:43:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:43:57,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:43:57,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:43:57,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:43:57,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:43:57,881 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:43:57,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:43:57,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:43:57,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:43:57,908 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 19:43:57,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684477321] [2021-04-28 19:43:57,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:43:57,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 19:43:57,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787710883] [2021-04-28 19:43:57,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 19:43:57,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:43:57,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 19:43:57,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 19:43:57,912 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 391 [2021-04-28 19:43:57,914 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 83 transitions, 394 flow. Second operand has 5 states, 5 states have (on average 294.8) internal successors, (1474), 5 states have internal predecessors, (1474), 0 states have call successors, (0), 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 19:43:57,914 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:43:57,914 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 391 [2021-04-28 19:43:57,914 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:44:01,872 INFO L129 PetriNetUnfolder]: 22044/33950 cut-off events. [2021-04-28 19:44:01,872 INFO L130 PetriNetUnfolder]: For 14811/806013 co-relation queries the response was YES. [2021-04-28 19:44:02,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130545 conditions, 33950 events. 22044/33950 cut-off events. For 14811/806013 co-relation queries the response was YES. Maximal size of possible extension queue 7485. Compared 304762 event pairs, 4469 based on Foata normal form. 662/11131 useless extension candidates. Maximal degree in co-relation 130528. Up to 31325 conditions per place. [2021-04-28 19:44:02,343 INFO L132 encePairwiseOnDemand]: 371/391 looper letters, 35 selfloop transitions, 64 changer transitions 0/128 dead transitions. [2021-04-28 19:44:02,344 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 128 transitions, 841 flow [2021-04-28 19:44:02,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 19:44:02,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 19:44:02,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2154 transitions. [2021-04-28 19:44:02,354 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7869930580928023 [2021-04-28 19:44:02,355 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2154 transitions. [2021-04-28 19:44:02,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2154 transitions. [2021-04-28 19:44:02,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:44:02,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2154 transitions. [2021-04-28 19:44:02,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 307.7142857142857) internal successors, (2154), 7 states have internal predecessors, (2154), 0 states have call successors, (0), 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 19:44:02,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 391.0) internal successors, (3128), 8 states have internal predecessors, (3128), 0 states have call successors, (0), 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 19:44:02,371 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 391.0) internal successors, (3128), 8 states have internal predecessors, (3128), 0 states have call successors, (0), 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 19:44:02,371 INFO L185 Difference]: Start difference. First operand has 69 places, 83 transitions, 394 flow. Second operand 7 states and 2154 transitions. [2021-04-28 19:44:02,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 128 transitions, 841 flow [2021-04-28 19:44:02,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 128 transitions, 841 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 19:44:02,452 INFO L241 Difference]: Finished difference. Result has 78 places, 114 transitions, 836 flow [2021-04-28 19:44:02,452 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=836, PETRI_PLACES=78, PETRI_TRANSITIONS=114} [2021-04-28 19:44:02,452 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -77 predicate places. [2021-04-28 19:44:02,453 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:44:02,453 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 114 transitions, 836 flow [2021-04-28 19:44:02,453 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 114 transitions, 836 flow [2021-04-28 19:44:02,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 114 transitions, 836 flow [2021-04-28 19:44:05,763 INFO L129 PetriNetUnfolder]: 20351/31746 cut-off events. [2021-04-28 19:44:05,764 INFO L130 PetriNetUnfolder]: For 66407/466800 co-relation queries the response was YES. [2021-04-28 19:44:05,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 150406 conditions, 31746 events. 20351/31746 cut-off events. For 66407/466800 co-relation queries the response was YES. Maximal size of possible extension queue 5819. Compared 294836 event pairs, 4539 based on Foata normal form. 72/9807 useless extension candidates. Maximal degree in co-relation 150386. Up to 30044 conditions per place. [2021-04-28 19:44:06,395 INFO L146 LiptonReduction]: Number of co-enabled transitions 3330 [2021-04-28 19:44:07,148 INFO L158 LiptonReduction]: Checked pairs total: 2126 [2021-04-28 19:44:07,148 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:44:07,148 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4695 [2021-04-28 19:44:07,149 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 114 transitions, 836 flow [2021-04-28 19:44:07,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 294.8) internal successors, (1474), 5 states have internal predecessors, (1474), 0 states have call successors, (0), 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 19:44:07,150 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:44:07,150 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 19:44:07,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 19:44:07,151 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 19:44:07,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:44:07,151 INFO L82 PathProgramCache]: Analyzing trace with hash -658671997, now seen corresponding path program 1 times [2021-04-28 19:44:07,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:44:07,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172815066] [2021-04-28 19:44:07,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:44:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:44:07,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:44:07,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:44:07,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:44:07,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:44:07,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:44:07,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:44:07,264 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:44:07,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:44:07,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:44:07,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:44:07,290 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 19:44:07,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172815066] [2021-04-28 19:44:07,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:44:07,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 19:44:07,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849631828] [2021-04-28 19:44:07,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 19:44:07,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:44:07,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 19:44:07,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 19:44:07,294 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 391 [2021-04-28 19:44:07,296 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 114 transitions, 836 flow. Second operand has 6 states, 6 states have (on average 294.8333333333333) internal successors, (1769), 6 states have internal predecessors, (1769), 0 states have call successors, (0), 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 19:44:07,296 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:44:07,296 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 391 [2021-04-28 19:44:07,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:44:11,766 INFO L129 PetriNetUnfolder]: 20550/33689 cut-off events. [2021-04-28 19:44:11,766 INFO L130 PetriNetUnfolder]: For 41170/1617058 co-relation queries the response was YES. [2021-04-28 19:44:11,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191367 conditions, 33689 events. 20550/33689 cut-off events. For 41170/1617058 co-relation queries the response was YES. Maximal size of possible extension queue 7602. Compared 325154 event pairs, 788 based on Foata normal form. 697/10877 useless extension candidates. Maximal degree in co-relation 191345. Up to 31640 conditions per place. [2021-04-28 19:44:12,065 INFO L132 encePairwiseOnDemand]: 371/391 looper letters, 24 selfloop transitions, 95 changer transitions 12/160 dead transitions. [2021-04-28 19:44:12,065 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 160 transitions, 1508 flow [2021-04-28 19:44:12,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 19:44:12,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 19:44:12,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2772 transitions. [2021-04-28 19:44:12,077 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7877237851662404 [2021-04-28 19:44:12,077 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2772 transitions. [2021-04-28 19:44:12,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2772 transitions. [2021-04-28 19:44:12,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:44:12,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2772 transitions. [2021-04-28 19:44:12,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 308.0) internal successors, (2772), 9 states have internal predecessors, (2772), 0 states have call successors, (0), 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 19:44:12,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 391.0) internal successors, (3910), 10 states have internal predecessors, (3910), 0 states have call successors, (0), 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 19:44:12,097 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 391.0) internal successors, (3910), 10 states have internal predecessors, (3910), 0 states have call successors, (0), 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 19:44:12,097 INFO L185 Difference]: Start difference. First operand has 78 places, 114 transitions, 836 flow. Second operand 9 states and 2772 transitions. [2021-04-28 19:44:12,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 160 transitions, 1508 flow [2021-04-28 19:44:13,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 160 transitions, 1345 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 19:44:13,402 INFO L241 Difference]: Finished difference. Result has 86 places, 145 transitions, 1264 flow [2021-04-28 19:44:13,402 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1264, PETRI_PLACES=86, PETRI_TRANSITIONS=145} [2021-04-28 19:44:13,403 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -69 predicate places. [2021-04-28 19:44:13,403 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:44:13,403 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 145 transitions, 1264 flow [2021-04-28 19:44:13,403 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 145 transitions, 1264 flow [2021-04-28 19:44:13,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 145 transitions, 1264 flow [2021-04-28 19:44:16,216 INFO L129 PetriNetUnfolder]: 14499/25673 cut-off events. [2021-04-28 19:44:16,216 INFO L130 PetriNetUnfolder]: For 105194/376720 co-relation queries the response was YES. [2021-04-28 19:44:16,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149936 conditions, 25673 events. 14499/25673 cut-off events. For 105194/376720 co-relation queries the response was YES. Maximal size of possible extension queue 5253. Compared 276844 event pairs, 718 based on Foata normal form. 28/7731 useless extension candidates. Maximal degree in co-relation 149913. Up to 20701 conditions per place. [2021-04-28 19:44:16,862 INFO L146 LiptonReduction]: Number of co-enabled transitions 3850 [2021-04-28 19:44:21,246 INFO L158 LiptonReduction]: Checked pairs total: 3154 [2021-04-28 19:44:21,246 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:44:21,246 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7843 [2021-04-28 19:44:21,248 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 145 transitions, 1264 flow [2021-04-28 19:44:21,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 294.8333333333333) internal successors, (1769), 6 states have internal predecessors, (1769), 0 states have call successors, (0), 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 19:44:21,248 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:44:21,248 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] [2021-04-28 19:44:21,249 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 19:44:21,249 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 19:44:21,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:44:21,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1436030989, now seen corresponding path program 1 times [2021-04-28 19:44:21,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:44:21,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661650440] [2021-04-28 19:44:21,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:44:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:44:21,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:44:21,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:44:21,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:44:21,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:44:21,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:44:21,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:44:21,339 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 19:44:21,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661650440] [2021-04-28 19:44:21,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:44:21,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:44:21,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263320118] [2021-04-28 19:44:21,340 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:44:21,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:44:21,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:44:21,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:44:21,348 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 391 [2021-04-28 19:44:21,349 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 145 transitions, 1264 flow. Second operand has 4 states, 4 states have (on average 270.0) internal successors, (1080), 4 states have internal predecessors, (1080), 0 states have call successors, (0), 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 19:44:21,349 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:44:21,349 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 391 [2021-04-28 19:44:21,349 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:44:27,943 INFO L129 PetriNetUnfolder]: 28961/51265 cut-off events. [2021-04-28 19:44:27,943 INFO L130 PetriNetUnfolder]: For 260611/1196371 co-relation queries the response was YES. [2021-04-28 19:44:28,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 299777 conditions, 51265 events. 28961/51265 cut-off events. For 260611/1196371 co-relation queries the response was YES. Maximal size of possible extension queue 10773. Compared 579214 event pairs, 1440 based on Foata normal form. 325/14469 useless extension candidates. Maximal degree in co-relation 299752. Up to 41635 conditions per place. [2021-04-28 19:44:28,453 INFO L132 encePairwiseOnDemand]: 388/391 looper letters, 4 selfloop transitions, 2 changer transitions 0/147 dead transitions. [2021-04-28 19:44:28,453 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 147 transitions, 1288 flow [2021-04-28 19:44:28,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:44:28,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:44:28,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1083 transitions. [2021-04-28 19:44:28,461 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6924552429667519 [2021-04-28 19:44:28,461 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1083 transitions. [2021-04-28 19:44:28,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1083 transitions. [2021-04-28 19:44:28,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:44:28,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1083 transitions. [2021-04-28 19:44:28,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 270.75) internal successors, (1083), 4 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:44:28,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 391.0) internal successors, (1955), 5 states have internal predecessors, (1955), 0 states have call successors, (0), 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 19:44:28,469 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 391.0) internal successors, (1955), 5 states have internal predecessors, (1955), 0 states have call successors, (0), 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 19:44:28,469 INFO L185 Difference]: Start difference. First operand has 86 places, 145 transitions, 1264 flow. Second operand 4 states and 1083 transitions. [2021-04-28 19:44:28,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 147 transitions, 1288 flow [2021-04-28 19:45:59,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 147 transitions, 956 flow, removed 108 selfloop flow, removed 5 redundant places. [2021-04-28 19:45:59,789 INFO L241 Difference]: Finished difference. Result has 86 places, 146 transitions, 945 flow [2021-04-28 19:45:59,789 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=932, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=945, PETRI_PLACES=86, PETRI_TRANSITIONS=146} [2021-04-28 19:45:59,789 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -69 predicate places. [2021-04-28 19:45:59,789 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:45:59,789 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 146 transitions, 945 flow [2021-04-28 19:45:59,790 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 146 transitions, 945 flow [2021-04-28 19:45:59,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 146 transitions, 945 flow [2021-04-28 19:46:04,824 INFO L129 PetriNetUnfolder]: 28934/51211 cut-off events. [2021-04-28 19:46:04,825 INFO L130 PetriNetUnfolder]: For 50826/55906 co-relation queries the response was YES. [2021-04-28 19:46:05,102 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189909 conditions, 51211 events. 28934/51211 cut-off events. For 50826/55906 co-relation queries the response was YES. Maximal size of possible extension queue 11208. Compared 595869 event pairs, 1401 based on Foata normal form. 28/14690 useless extension candidates. Maximal degree in co-relation 189885. Up to 25219 conditions per place. [2021-04-28 19:46:05,580 INFO L146 LiptonReduction]: Number of co-enabled transitions 3960 [2021-04-28 19:48:04,566 INFO L158 LiptonReduction]: Checked pairs total: 2848 [2021-04-28 19:48:04,567 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:48:04,567 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 124778 [2021-04-28 19:48:04,568 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 146 transitions, 945 flow [2021-04-28 19:48:04,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 270.0) internal successors, (1080), 4 states have internal predecessors, (1080), 0 states have call successors, (0), 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 19:48:04,569 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:48:04,569 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] [2021-04-28 19:48:04,569 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 19:48:04,569 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 19:48:04,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:48:04,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1094223251, now seen corresponding path program 2 times [2021-04-28 19:48:04,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:48:04,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519027126] [2021-04-28 19:48:04,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:48:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:48:04,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:48:04,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:48:04,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:48:04,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:48:04,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:48:04,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:48:04,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:48:04,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:48:04,722 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:48:04,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:48:04,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:48:04,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:48:04,753 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 19:48:04,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519027126] [2021-04-28 19:48:04,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:48:04,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 19:48:04,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434728630] [2021-04-28 19:48:04,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 19:48:04,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:48:04,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 19:48:04,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 19:48:04,758 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 391 [2021-04-28 19:48:04,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 146 transitions, 945 flow. Second operand has 7 states, 7 states have (on average 294.85714285714283) internal successors, (2064), 7 states have internal predecessors, (2064), 0 states have call successors, (0), 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 19:48:04,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:48:04,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 391 [2021-04-28 19:48:04,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:48:11,833 INFO L129 PetriNetUnfolder]: 29195/52219 cut-off events. [2021-04-28 19:48:11,833 INFO L130 PetriNetUnfolder]: For 60949/1384075 co-relation queries the response was YES. [2021-04-28 19:48:12,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237763 conditions, 52219 events. 29195/52219 cut-off events. For 60949/1384075 co-relation queries the response was YES. Maximal size of possible extension queue 11202. Compared 591972 event pairs, 9 based on Foata normal form. 949/15458 useless extension candidates. Maximal degree in co-relation 237737. Up to 27648 conditions per place. [2021-04-28 19:48:12,361 INFO L132 encePairwiseOnDemand]: 371/391 looper letters, 6 selfloop transitions, 113 changer transitions 20/169 dead transitions. [2021-04-28 19:48:12,362 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 169 transitions, 1432 flow [2021-04-28 19:48:12,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 19:48:12,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 19:48:12,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3366 transitions. [2021-04-28 19:48:12,375 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.782608695652174 [2021-04-28 19:48:12,375 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3366 transitions. [2021-04-28 19:48:12,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3366 transitions. [2021-04-28 19:48:12,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:48:12,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3366 transitions. [2021-04-28 19:48:12,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 306.0) internal successors, (3366), 11 states have internal predecessors, (3366), 0 states have call successors, (0), 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 19:48:12,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 391.0) internal successors, (4692), 12 states have internal predecessors, (4692), 0 states have call successors, (0), 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 19:48:12,397 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 391.0) internal successors, (4692), 12 states have internal predecessors, (4692), 0 states have call successors, (0), 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 19:48:12,397 INFO L185 Difference]: Start difference. First operand has 86 places, 146 transitions, 945 flow. Second operand 11 states and 3366 transitions. [2021-04-28 19:48:12,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 169 transitions, 1432 flow [2021-04-28 19:49:12,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 169 transitions, 1419 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-04-28 19:49:12,504 INFO L241 Difference]: Finished difference. Result has 96 places, 146 transitions, 1214 flow [2021-04-28 19:49:12,505 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=932, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1214, PETRI_PLACES=96, PETRI_TRANSITIONS=146} [2021-04-28 19:49:12,505 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -59 predicate places. [2021-04-28 19:49:12,505 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:49:12,505 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 146 transitions, 1214 flow [2021-04-28 19:49:12,505 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 146 transitions, 1214 flow [2021-04-28 19:49:12,507 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 146 transitions, 1214 flow [2021-04-28 19:49:17,121 INFO L129 PetriNetUnfolder]: 23561/43462 cut-off events. [2021-04-28 19:49:17,121 INFO L130 PetriNetUnfolder]: For 57146/255151 co-relation queries the response was YES. [2021-04-28 19:49:17,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193527 conditions, 43462 events. 23561/43462 cut-off events. For 57146/255151 co-relation queries the response was YES. Maximal size of possible extension queue 11358. Compared 529514 event pairs, 9 based on Foata normal form. 1/11947 useless extension candidates. Maximal degree in co-relation 193501. Up to 27648 conditions per place. [2021-04-28 19:49:17,795 INFO L146 LiptonReduction]: Number of co-enabled transitions 3860 [2021-04-28 19:49:51,695 INFO L158 LiptonReduction]: Checked pairs total: 2964 [2021-04-28 19:49:51,695 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:49:51,695 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39190 [2021-04-28 19:49:51,696 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 146 transitions, 1214 flow [2021-04-28 19:49:51,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 294.85714285714283) internal successors, (2064), 7 states have internal predecessors, (2064), 0 states have call successors, (0), 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 19:49:51,697 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:49:51,697 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 19:49:51,697 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 19:49:51,697 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 19:49:51,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:49:51,698 INFO L82 PathProgramCache]: Analyzing trace with hash 131398476, now seen corresponding path program 1 times [2021-04-28 19:49:51,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:49:51,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394911534] [2021-04-28 19:49:51,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:49:51,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:49:51,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:49:51,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:49:51,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:49:51,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:49:51,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:49:51,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:49:51,787 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 19:49:51,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394911534] [2021-04-28 19:49:51,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:49:51,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:49:51,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417164012] [2021-04-28 19:49:51,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:49:51,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:49:51,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:49:51,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:49:51,791 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 391 [2021-04-28 19:49:51,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 146 transitions, 1214 flow. Second operand has 4 states, 4 states have (on average 265.0) internal successors, (1060), 4 states have internal predecessors, (1060), 0 states have call successors, (0), 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 19:49:51,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:49:51,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 391 [2021-04-28 19:49:51,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:50:01,940 INFO L129 PetriNetUnfolder]: 46831/85901 cut-off events. [2021-04-28 19:50:01,941 INFO L130 PetriNetUnfolder]: For 118546/1185925 co-relation queries the response was YES. [2021-04-28 19:50:02,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 382620 conditions, 85901 events. 46831/85901 cut-off events. For 118546/1185925 co-relation queries the response was YES. Maximal size of possible extension queue 21603. Compared 1068655 event pairs, 17 based on Foata normal form. 82/21777 useless extension candidates. Maximal degree in co-relation 382592. Up to 55296 conditions per place. [2021-04-28 19:50:03,085 INFO L132 encePairwiseOnDemand]: 388/391 looper letters, 3 selfloop transitions, 2 changer transitions 0/147 dead transitions. [2021-04-28 19:50:03,085 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 147 transitions, 1226 flow [2021-04-28 19:50:03,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:50:03,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:50:03,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1062 transitions. [2021-04-28 19:50:03,091 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6790281329923273 [2021-04-28 19:50:03,091 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1062 transitions. [2021-04-28 19:50:03,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1062 transitions. [2021-04-28 19:50:03,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:50:03,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1062 transitions. [2021-04-28 19:50:03,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 265.5) internal successors, (1062), 4 states have internal predecessors, (1062), 0 states have call successors, (0), 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 19:50:03,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 391.0) internal successors, (1955), 5 states have internal predecessors, (1955), 0 states have call successors, (0), 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 19:50:03,099 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 391.0) internal successors, (1955), 5 states have internal predecessors, (1955), 0 states have call successors, (0), 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 19:50:03,099 INFO L185 Difference]: Start difference. First operand has 94 places, 146 transitions, 1214 flow. Second operand 4 states and 1062 transitions. [2021-04-28 19:50:03,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 147 transitions, 1226 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown