/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/mix040_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 20:46:30,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 20:46:30,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 20:46:30,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 20:46:30,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 20:46:30,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 20:46:30,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 20:46:30,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 20:46:30,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 20:46:30,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 20:46:30,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 20:46:30,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 20:46:30,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 20:46:30,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 20:46:30,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 20:46:30,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 20:46:30,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 20:46:30,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 20:46:30,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 20:46:30,329 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 20:46:30,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 20:46:30,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 20:46:30,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 20:46:30,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 20:46:30,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 20:46:30,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 20:46:30,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 20:46:30,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 20:46:30,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 20:46:30,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 20:46:30,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 20:46:30,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 20:46:30,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 20:46:30,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 20:46:30,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 20:46:30,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 20:46:30,377 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 20:46:30,429 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 20:46:30,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 20:46:30,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 20:46:30,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 20:46:30,434 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 20:46:30,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 20:46:30,435 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 20:46:30,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 20:46:30,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 20:46:30,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 20:46:30,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 20:46:30,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 20:46:30,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 20:46:30,437 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 20:46:30,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 20:46:30,437 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 20:46:30,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 20:46:30,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 20:46:30,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 20:46:30,438 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 20:46:30,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 20:46:30,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 20:46:30,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 20:46:30,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 20:46:30,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 20:46:30,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 20:46:30,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 20:46:30,440 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 20:46:30,440 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 20:46:30,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 20:46:30,441 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 20:46:30,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 20:46:30,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 20:46:30,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 20:46:30,901 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 20:46:30,906 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 20:46:30,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix040_pso.opt.i [2021-04-28 20:46:30,976 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af743c21d/4af7cf4e801c4f54876b3f2291472354/FLAGb74543cb8 [2021-04-28 20:46:31,631 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 20:46:31,632 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix040_pso.opt.i [2021-04-28 20:46:31,651 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af743c21d/4af7cf4e801c4f54876b3f2291472354/FLAGb74543cb8 [2021-04-28 20:46:31,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af743c21d/4af7cf4e801c4f54876b3f2291472354 [2021-04-28 20:46:31,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 20:46:31,923 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 20:46:31,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 20:46:31,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 20:46:31,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 20:46:31,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 08:46:31" (1/1) ... [2021-04-28 20:46:31,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@efd4edc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:46:31, skipping insertion in model container [2021-04-28 20:46:31,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 08:46:31" (1/1) ... [2021-04-28 20:46:31,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 20:46:32,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 20:46:32,295 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/mix040_pso.opt.i[948,961] [2021-04-28 20:46:32,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 20:46:32,570 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 20:46:32,584 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/mix040_pso.opt.i[948,961] [2021-04-28 20:46:32,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 20:46:32,715 INFO L208 MainTranslator]: Completed translation [2021-04-28 20:46:32,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:46:32 WrapperNode [2021-04-28 20:46:32,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 20:46:32,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 20:46:32,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 20:46:32,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 20:46:32,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:46:32" (1/1) ... [2021-04-28 20:46:32,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:46:32" (1/1) ... [2021-04-28 20:46:32,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 20:46:32,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 20:46:32,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 20:46:32,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 20:46:32,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:46:32" (1/1) ... [2021-04-28 20:46:32,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:46:32" (1/1) ... [2021-04-28 20:46:32,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:46:32" (1/1) ... [2021-04-28 20:46:32,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:46:32" (1/1) ... [2021-04-28 20:46:32,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:46:32" (1/1) ... [2021-04-28 20:46:32,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:46:32" (1/1) ... [2021-04-28 20:46:32,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:46:32" (1/1) ... [2021-04-28 20:46:32,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 20:46:32,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 20:46:32,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 20:46:32,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 20:46:32,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:46:32" (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 20:46:32,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 20:46:32,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 20:46:32,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 20:46:32,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 20:46:32,933 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 20:46:32,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 20:46:32,933 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 20:46:32,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 20:46:32,934 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 20:46:32,934 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 20:46:32,934 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 20:46:32,934 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 20:46:32,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 20:46:32,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 20:46:32,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 20:46:32,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 20:46:32,937 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 20:46:34,737 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 20:46:34,738 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 20:46:34,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 08:46:34 BoogieIcfgContainer [2021-04-28 20:46:34,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 20:46:34,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 20:46:34,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 20:46:34,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 20:46:34,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 08:46:31" (1/3) ... [2021-04-28 20:46:34,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba71eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 08:46:34, skipping insertion in model container [2021-04-28 20:46:34,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:46:32" (2/3) ... [2021-04-28 20:46:34,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba71eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 08:46:34, skipping insertion in model container [2021-04-28 20:46:34,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 08:46:34" (3/3) ... [2021-04-28 20:46:34,749 INFO L111 eAbstractionObserver]: Analyzing ICFG mix040_pso.opt.i [2021-04-28 20:46:34,756 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 20:46:34,762 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 20:46:34,763 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 20:46:34,799 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,799 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,799 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,799 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,800 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,800 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,800 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,800 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,801 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,801 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,801 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,801 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,802 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,802 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,803 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,803 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,803 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,803 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,803 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,804 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,804 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,804 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,804 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,805 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,805 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,805 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,805 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,805 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,806 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,806 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,806 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,806 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,807 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,807 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,807 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,807 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,807 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,807 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,808 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,808 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,808 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,808 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,809 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,809 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,809 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,809 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,809 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,810 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,810 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,810 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,810 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,810 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,811 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,811 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,811 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,811 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,811 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,815 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,815 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,816 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,816 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,816 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,816 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,816 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,817 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,817 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,817 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,817 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,817 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,817 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,820 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,820 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,820 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,820 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,820 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,820 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,821 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,821 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,821 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,821 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,821 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,822 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,822 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,822 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,822 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,825 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,826 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,826 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,826 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,826 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,826 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,826 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,827 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,827 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,827 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,827 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,827 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,828 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,828 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,828 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,828 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,829 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,829 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,829 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,829 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,830 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,830 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,830 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,830 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,832 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,832 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,832 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,833 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,834 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,835 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,835 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,835 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,837 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,837 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,837 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,837 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,839 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,839 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,839 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,839 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,839 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,840 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,840 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,840 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,840 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,840 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,842 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,842 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,842 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,842 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,842 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,843 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,843 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,843 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,843 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,843 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,844 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,844 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,844 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,845 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,846 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,846 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,846 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,846 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,846 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,847 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,847 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,847 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,847 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,847 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,848 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:46:34,849 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 20:46:34,871 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 20:46:34,896 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 20:46:34,896 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 20:46:34,897 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 20:46:34,897 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 20:46:34,897 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 20:46:34,897 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 20:46:34,897 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 20:46:34,897 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 20:46:34,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 116 transitions, 252 flow [2021-04-28 20:46:34,965 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-04-28 20:46:34,965 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:46:34,969 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 78 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2021-04-28 20:46:34,970 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 116 transitions, 252 flow [2021-04-28 20:46:34,976 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 112 transitions, 236 flow [2021-04-28 20:46:34,978 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:46:34,993 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 112 transitions, 236 flow [2021-04-28 20:46:34,996 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 112 transitions, 236 flow [2021-04-28 20:46:34,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 236 flow [2021-04-28 20:46:35,027 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-04-28 20:46:35,028 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:46:35,029 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 80 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2021-04-28 20:46:35,036 INFO L146 LiptonReduction]: Number of co-enabled transitions 2488 [2021-04-28 20:46:38,294 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 20:46:38,938 WARN L205 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 20:46:39,142 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 20:46:52,156 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 20:46:54,316 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 20:46:54,417 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 20:46:55,379 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:46:55,481 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:46:55,589 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:46:55,692 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:46:56,614 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:46:57,639 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 20:46:57,774 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 20:46:57,905 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 20:46:58,043 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 20:46:58,589 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 20:46:58,749 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 20:46:58,903 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 20:46:59,060 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 20:46:59,180 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 20:47:00,883 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 20:47:01,008 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:01,133 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:01,254 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:01,376 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:01,508 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:47:01,639 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:47:01,770 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:47:01,904 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:47:02,046 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:47:02,186 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:47:02,327 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:47:02,469 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:47:02,603 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:47:02,738 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:47:02,882 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:47:03,028 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:47:03,180 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:47:03,331 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:47:03,479 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:47:03,658 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:47:03,790 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:03,918 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:04,054 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:04,185 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:04,299 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:47:04,418 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:47:04,540 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:47:04,649 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:47:04,773 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:47:04,898 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:47:05,022 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:47:05,146 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:47:05,299 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 20:47:05,449 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 20:47:05,602 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 20:47:05,754 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 20:47:05,918 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 20:47:06,082 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 20:47:06,230 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 20:47:06,396 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 20:47:06,527 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:47:06,640 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:47:06,756 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:47:06,873 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:47:07,013 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:47:07,155 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:47:07,296 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:47:07,436 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:47:07,607 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 20:47:07,773 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 20:47:07,945 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 20:47:08,119 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 20:47:08,240 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:08,360 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:08,491 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:08,619 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:08,838 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:09,040 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:09,252 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:09,453 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:09,646 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 20:47:09,834 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 20:47:10,022 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 20:47:10,213 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 20:47:10,738 WARN L205 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-04-28 20:47:10,975 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-04-28 20:47:11,496 WARN L205 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-04-28 20:47:11,736 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-04-28 20:47:11,930 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 20:47:12,112 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 20:47:12,291 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 20:47:12,473 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 20:47:12,655 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 20:47:12,838 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 20:47:13,019 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 20:47:13,212 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 20:47:13,424 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:13,636 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:13,846 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:14,052 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:14,257 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:14,456 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:14,671 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:14,873 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:15,065 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:47:15,260 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:47:15,461 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:47:15,667 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:47:15,776 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:47:15,884 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:47:15,992 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:47:16,099 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:47:16,588 WARN L205 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2021-04-28 20:47:16,819 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-04-28 20:47:17,332 WARN L205 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2021-04-28 20:47:17,574 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-04-28 20:47:17,775 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:17,975 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:18,185 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:18,389 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:18,591 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:47:18,783 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:47:18,978 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:47:19,172 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:47:19,239 INFO L158 LiptonReduction]: Checked pairs total: 23934 [2021-04-28 20:47:19,239 INFO L160 LiptonReduction]: Total number of compositions: 275 [2021-04-28 20:47:19,245 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44269 [2021-04-28 20:47:19,273 INFO L129 PetriNetUnfolder]: 0/99 cut-off events. [2021-04-28 20:47:19,273 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:47:19,274 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:47:19,274 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:47:19,275 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:47:19,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:47:19,281 INFO L82 PathProgramCache]: Analyzing trace with hash 478744, now seen corresponding path program 1 times [2021-04-28 20:47:19,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:47:19,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767278967] [2021-04-28 20:47:19,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:47:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:47:19,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:47:19,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:47:19,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:47:19,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767278967] [2021-04-28 20:47:19,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:47:19,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 20:47:19,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483179124] [2021-04-28 20:47:19,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 20:47:19,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:47:19,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 20:47:19,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 20:47:19,616 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 391 [2021-04-28 20:47:19,622 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 140 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:19,622 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:47:19,622 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 391 [2021-04-28 20:47:19,623 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:47:19,762 INFO L129 PetriNetUnfolder]: 17/390 cut-off events. [2021-04-28 20:47:19,762 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:47:19,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 390 events. 17/390 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 3220 event pairs, 3 based on Foata normal form. 20/78 useless extension candidates. Maximal degree in co-relation 374. Up to 33 conditions per place. [2021-04-28 20:47:19,768 INFO L132 encePairwiseOnDemand]: 374/391 looper letters, 5 selfloop transitions, 4 changer transitions 62/138 dead transitions. [2021-04-28 20:47:19,768 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 138 transitions, 326 flow [2021-04-28 20:47:19,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 20:47:19,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 20:47:19,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1009 transitions. [2021-04-28 20:47:19,788 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8601875532821824 [2021-04-28 20:47:19,789 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1009 transitions. [2021-04-28 20:47:19,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1009 transitions. [2021-04-28 20:47:19,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:47:19,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1009 transitions. [2021-04-28 20:47:19,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:19,812 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 20:47:19,813 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 20:47:19,816 INFO L185 Difference]: Start difference. First operand has 152 places, 140 transitions, 292 flow. Second operand 3 states and 1009 transitions. [2021-04-28 20:47:19,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 138 transitions, 326 flow [2021-04-28 20:47:19,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 138 transitions, 322 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 20:47:19,824 INFO L241 Difference]: Finished difference. Result has 147 places, 74 transitions, 164 flow [2021-04-28 20:47:19,826 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=147, PETRI_TRANSITIONS=74} [2021-04-28 20:47:19,827 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -5 predicate places. [2021-04-28 20:47:19,828 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:47:19,828 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 74 transitions, 164 flow [2021-04-28 20:47:19,828 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 74 transitions, 164 flow [2021-04-28 20:47:19,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 74 transitions, 164 flow [2021-04-28 20:47:19,841 INFO L129 PetriNetUnfolder]: 0/74 cut-off events. [2021-04-28 20:47:19,841 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:47:19,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 74 events. 0/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 352 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-28 20:47:19,844 INFO L146 LiptonReduction]: Number of co-enabled transitions 2848 [2021-04-28 20:47:20,152 INFO L158 LiptonReduction]: Checked pairs total: 3664 [2021-04-28 20:47:20,153 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:47:20,153 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 325 [2021-04-28 20:47:20,155 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 74 transitions, 164 flow [2021-04-28 20:47:20,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 328.6666666666667) internal successors, (986), 3 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:20,156 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:47:20,157 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:47:20,157 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 20:47:20,157 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:47:20,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:47:20,158 INFO L82 PathProgramCache]: Analyzing trace with hash 460154925, now seen corresponding path program 1 times [2021-04-28 20:47:20,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:47:20,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247677797] [2021-04-28 20:47:20,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:47:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:47:20,277 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 20:47:20,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 20:47:20,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:47:20,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247677797] [2021-04-28 20:47:20,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:47:20,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 20:47:20,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692795229] [2021-04-28 20:47:20,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 20:47:20,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:47:20,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 20:47:20,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 20:47:20,295 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 391 [2021-04-28 20:47:20,297 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 74 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 241.66666666666666) internal successors, (725), 3 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:20,297 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:47:20,297 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 391 [2021-04-28 20:47:20,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:47:22,310 INFO L129 PetriNetUnfolder]: 5951/14177 cut-off events. [2021-04-28 20:47:22,310 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:47:22,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22794 conditions, 14177 events. 5951/14177 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2080. Compared 172569 event pairs, 1907 based on Foata normal form. 0/8613 useless extension candidates. Maximal degree in co-relation 22785. Up to 4993 conditions per place. [2021-04-28 20:47:22,565 INFO L132 encePairwiseOnDemand]: 367/391 looper letters, 8 selfloop transitions, 8 changer transitions 50/105 dead transitions. [2021-04-28 20:47:22,566 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 105 transitions, 358 flow [2021-04-28 20:47:22,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 20:47:22,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 20:47:22,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 786 transitions. [2021-04-28 20:47:22,578 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.670076726342711 [2021-04-28 20:47:22,578 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 786 transitions. [2021-04-28 20:47:22,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 786 transitions. [2021-04-28 20:47:22,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:47:22,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 786 transitions. [2021-04-28 20:47:22,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:22,586 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 20:47:22,587 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 20:47:22,587 INFO L185 Difference]: Start difference. First operand has 85 places, 74 transitions, 164 flow. Second operand 3 states and 786 transitions. [2021-04-28 20:47:22,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 105 transitions, 358 flow [2021-04-28 20:47:22,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 105 transitions, 350 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 20:47:22,591 INFO L241 Difference]: Finished difference. Result has 87 places, 55 transitions, 166 flow [2021-04-28 20:47:22,591 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=166, PETRI_PLACES=87, PETRI_TRANSITIONS=55} [2021-04-28 20:47:22,591 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -65 predicate places. [2021-04-28 20:47:22,591 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:47:22,592 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 55 transitions, 166 flow [2021-04-28 20:47:22,592 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 55 transitions, 166 flow [2021-04-28 20:47:22,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 55 transitions, 166 flow [2021-04-28 20:47:22,694 INFO L129 PetriNetUnfolder]: 276/801 cut-off events. [2021-04-28 20:47:22,694 INFO L130 PetriNetUnfolder]: For 88/101 co-relation queries the response was YES. [2021-04-28 20:47:22,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1461 conditions, 801 events. 276/801 cut-off events. For 88/101 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 6073 event pairs, 118 based on Foata normal form. 0/564 useless extension candidates. Maximal degree in co-relation 1452. Up to 325 conditions per place. [2021-04-28 20:47:22,716 INFO L146 LiptonReduction]: Number of co-enabled transitions 1740 [2021-04-28 20:47:23,017 INFO L158 LiptonReduction]: Checked pairs total: 475 [2021-04-28 20:47:23,017 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:47:23,017 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 426 [2021-04-28 20:47:23,019 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 55 transitions, 166 flow [2021-04-28 20:47:23,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 241.66666666666666) internal successors, (725), 3 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:23,020 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:47:23,021 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:47:23,021 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 20:47:23,021 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:47:23,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:47:23,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1379898315, now seen corresponding path program 1 times [2021-04-28 20:47:23,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:47:23,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162011486] [2021-04-28 20:47:23,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:47:23,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:47:23,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:47:23,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:47:23,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:47:23,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162011486] [2021-04-28 20:47:23,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:47:23,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 20:47:23,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064067838] [2021-04-28 20:47:23,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 20:47:23,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:47:23,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 20:47:23,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 20:47:23,095 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 391 [2021-04-28 20:47:23,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 55 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 264.6666666666667) internal successors, (794), 3 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:23,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:47:23,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 391 [2021-04-28 20:47:23,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:47:23,191 INFO L129 PetriNetUnfolder]: 222/683 cut-off events. [2021-04-28 20:47:23,192 INFO L130 PetriNetUnfolder]: For 200/243 co-relation queries the response was YES. [2021-04-28 20:47:23,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1296 conditions, 683 events. 222/683 cut-off events. For 200/243 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 4919 event pairs, 73 based on Foata normal form. 4/478 useless extension candidates. Maximal degree in co-relation 1285. Up to 265 conditions per place. [2021-04-28 20:47:23,201 INFO L132 encePairwiseOnDemand]: 388/391 looper letters, 1 selfloop transitions, 3 changer transitions 0/55 dead transitions. [2021-04-28 20:47:23,201 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 55 transitions, 174 flow [2021-04-28 20:47:23,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 20:47:23,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 20:47:23,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 796 transitions. [2021-04-28 20:47:23,204 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6786018755328218 [2021-04-28 20:47:23,204 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 796 transitions. [2021-04-28 20:47:23,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 796 transitions. [2021-04-28 20:47:23,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:47:23,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 796 transitions. [2021-04-28 20:47:23,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:23,211 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 20:47:23,212 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 20:47:23,213 INFO L185 Difference]: Start difference. First operand has 61 places, 55 transitions, 166 flow. Second operand 3 states and 796 transitions. [2021-04-28 20:47:23,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 55 transitions, 174 flow [2021-04-28 20:47:23,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 55 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 20:47:23,218 INFO L241 Difference]: Finished difference. Result has 62 places, 55 transitions, 161 flow [2021-04-28 20:47:23,218 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=62, PETRI_TRANSITIONS=55} [2021-04-28 20:47:23,219 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -90 predicate places. [2021-04-28 20:47:23,219 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:47:23,219 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 55 transitions, 161 flow [2021-04-28 20:47:23,219 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 55 transitions, 161 flow [2021-04-28 20:47:23,220 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 55 transitions, 161 flow [2021-04-28 20:47:23,288 INFO L129 PetriNetUnfolder]: 222/681 cut-off events. [2021-04-28 20:47:23,288 INFO L130 PetriNetUnfolder]: For 58/66 co-relation queries the response was YES. [2021-04-28 20:47:23,292 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1153 conditions, 681 events. 222/681 cut-off events. For 58/66 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 5023 event pairs, 89 based on Foata normal form. 0/479 useless extension candidates. Maximal degree in co-relation 1143. Up to 265 conditions per place. [2021-04-28 20:47:23,306 INFO L146 LiptonReduction]: Number of co-enabled transitions 1732 [2021-04-28 20:47:23,489 INFO L158 LiptonReduction]: Checked pairs total: 473 [2021-04-28 20:47:23,489 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:47:23,489 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 270 [2021-04-28 20:47:23,491 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 55 transitions, 161 flow [2021-04-28 20:47:23,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 264.6666666666667) internal successors, (794), 3 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:23,493 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:47:23,493 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:47:23,493 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 20:47:23,493 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:47:23,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:47:23,493 INFO L82 PathProgramCache]: Analyzing trace with hash -172841958, now seen corresponding path program 1 times [2021-04-28 20:47:23,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:47:23,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980387202] [2021-04-28 20:47:23,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:47:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:47:23,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:47:23,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:47:23,556 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 20:47:23,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 20:47:23,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:47:23,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980387202] [2021-04-28 20:47:23,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:47:23,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 20:47:23,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999729924] [2021-04-28 20:47:23,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 20:47:23,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:47:23,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 20:47:23,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 20:47:23,573 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 391 [2021-04-28 20:47:23,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 55 transitions, 161 flow. Second operand has 4 states, 4 states have (on average 241.75) internal successors, (967), 4 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:23,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:47:23,575 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 391 [2021-04-28 20:47:23,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:47:23,687 INFO L129 PetriNetUnfolder]: 196/627 cut-off events. [2021-04-28 20:47:23,688 INFO L130 PetriNetUnfolder]: For 103/359 co-relation queries the response was YES. [2021-04-28 20:47:23,690 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1387 conditions, 627 events. 196/627 cut-off events. For 103/359 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 4472 event pairs, 53 based on Foata normal form. 13/447 useless extension candidates. Maximal degree in co-relation 1375. Up to 233 conditions per place. [2021-04-28 20:47:23,696 INFO L132 encePairwiseOnDemand]: 382/391 looper letters, 14 selfloop transitions, 12 changer transitions 0/65 dead transitions. [2021-04-28 20:47:23,696 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 65 transitions, 259 flow [2021-04-28 20:47:23,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 20:47:23,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 20:47:23,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 987 transitions. [2021-04-28 20:47:23,700 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.631074168797954 [2021-04-28 20:47:23,700 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 987 transitions. [2021-04-28 20:47:23,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 987 transitions. [2021-04-28 20:47:23,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:47:23,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 987 transitions. [2021-04-28 20:47:23,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 246.75) internal successors, (987), 4 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:23,708 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 20:47:23,710 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 20:47:23,710 INFO L185 Difference]: Start difference. First operand has 62 places, 55 transitions, 161 flow. Second operand 4 states and 987 transitions. [2021-04-28 20:47:23,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 65 transitions, 259 flow [2021-04-28 20:47:23,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 65 transitions, 249 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 20:47:23,713 INFO L241 Difference]: Finished difference. Result has 65 places, 61 transitions, 228 flow [2021-04-28 20:47:23,714 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=228, PETRI_PLACES=65, PETRI_TRANSITIONS=61} [2021-04-28 20:47:23,714 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -87 predicate places. [2021-04-28 20:47:23,714 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:47:23,714 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 61 transitions, 228 flow [2021-04-28 20:47:23,714 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 61 transitions, 228 flow [2021-04-28 20:47:23,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 61 transitions, 228 flow [2021-04-28 20:47:23,782 INFO L129 PetriNetUnfolder]: 196/609 cut-off events. [2021-04-28 20:47:23,782 INFO L130 PetriNetUnfolder]: For 242/269 co-relation queries the response was YES. [2021-04-28 20:47:23,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1324 conditions, 609 events. 196/609 cut-off events. For 242/269 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4379 event pairs, 56 based on Foata normal form. 0/431 useless extension candidates. Maximal degree in co-relation 1312. Up to 233 conditions per place. [2021-04-28 20:47:23,800 INFO L146 LiptonReduction]: Number of co-enabled transitions 1982 [2021-04-28 20:47:23,860 INFO L158 LiptonReduction]: Checked pairs total: 650 [2021-04-28 20:47:23,860 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:47:23,861 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 146 [2021-04-28 20:47:23,862 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 61 transitions, 228 flow [2021-04-28 20:47:23,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 241.75) internal successors, (967), 4 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:23,863 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:47:23,863 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:47:23,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 20:47:23,864 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:47:23,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:47:23,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1583949542, now seen corresponding path program 1 times [2021-04-28 20:47:23,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:47:23,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772449847] [2021-04-28 20:47:23,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:47:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:47:23,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:47:23,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:47:23,917 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 20:47:23,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 20:47:23,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:47:23,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772449847] [2021-04-28 20:47:23,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:47:23,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 20:47:23,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977599291] [2021-04-28 20:47:23,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 20:47:23,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:47:23,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 20:47:23,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 20:47:23,934 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 391 [2021-04-28 20:47:23,935 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 61 transitions, 228 flow. Second operand has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:23,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:47:23,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 391 [2021-04-28 20:47:23,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:47:24,047 INFO L129 PetriNetUnfolder]: 173/582 cut-off events. [2021-04-28 20:47:24,047 INFO L130 PetriNetUnfolder]: For 342/814 co-relation queries the response was YES. [2021-04-28 20:47:24,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1529 conditions, 582 events. 173/582 cut-off events. For 342/814 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4129 event pairs, 34 based on Foata normal form. 15/414 useless extension candidates. Maximal degree in co-relation 1515. Up to 210 conditions per place. [2021-04-28 20:47:24,055 INFO L132 encePairwiseOnDemand]: 382/391 looper letters, 21 selfloop transitions, 14 changer transitions 0/74 dead transitions. [2021-04-28 20:47:24,055 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 74 transitions, 379 flow [2021-04-28 20:47:24,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 20:47:24,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 20:47:24,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 987 transitions. [2021-04-28 20:47:24,060 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.631074168797954 [2021-04-28 20:47:24,060 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 987 transitions. [2021-04-28 20:47:24,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 987 transitions. [2021-04-28 20:47:24,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:47:24,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 987 transitions. [2021-04-28 20:47:24,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 246.75) internal successors, (987), 4 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:24,068 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 20:47:24,070 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 20:47:24,070 INFO L185 Difference]: Start difference. First operand has 65 places, 61 transitions, 228 flow. Second operand 4 states and 987 transitions. [2021-04-28 20:47:24,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 74 transitions, 379 flow [2021-04-28 20:47:24,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 74 transitions, 379 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 20:47:24,075 INFO L241 Difference]: Finished difference. Result has 71 places, 70 transitions, 359 flow [2021-04-28 20:47:24,075 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=359, PETRI_PLACES=71, PETRI_TRANSITIONS=70} [2021-04-28 20:47:24,075 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -81 predicate places. [2021-04-28 20:47:24,075 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:47:24,076 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 70 transitions, 359 flow [2021-04-28 20:47:24,076 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 70 transitions, 359 flow [2021-04-28 20:47:24,077 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 70 transitions, 359 flow [2021-04-28 20:47:24,156 INFO L129 PetriNetUnfolder]: 173/565 cut-off events. [2021-04-28 20:47:24,156 INFO L130 PetriNetUnfolder]: For 735/769 co-relation queries the response was YES. [2021-04-28 20:47:24,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1542 conditions, 565 events. 173/565 cut-off events. For 735/769 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4071 event pairs, 43 based on Foata normal form. 0/396 useless extension candidates. Maximal degree in co-relation 1525. Up to 210 conditions per place. [2021-04-28 20:47:24,171 INFO L146 LiptonReduction]: Number of co-enabled transitions 2358 [2021-04-28 20:47:24,181 INFO L158 LiptonReduction]: Checked pairs total: 884 [2021-04-28 20:47:24,181 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:47:24,181 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 106 [2021-04-28 20:47:24,183 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 70 transitions, 359 flow [2021-04-28 20:47:24,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:24,184 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:47:24,184 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:47:24,184 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 20:47:24,184 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:47:24,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:47:24,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1116521180, now seen corresponding path program 1 times [2021-04-28 20:47:24,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:47:24,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280006172] [2021-04-28 20:47:24,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:47:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:47:24,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:47:24,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:47:24,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:47:24,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:47:24,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:47:24,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280006172] [2021-04-28 20:47:24,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:47:24,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 20:47:24,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062682887] [2021-04-28 20:47:24,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 20:47:24,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:47:24,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 20:47:24,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 20:47:24,324 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 391 [2021-04-28 20:47:24,326 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 70 transitions, 359 flow. Second operand has 3 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:24,326 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:47:24,326 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 391 [2021-04-28 20:47:24,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:47:24,431 INFO L129 PetriNetUnfolder]: 171/668 cut-off events. [2021-04-28 20:47:24,431 INFO L130 PetriNetUnfolder]: For 1130/1351 co-relation queries the response was YES. [2021-04-28 20:47:24,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1789 conditions, 668 events. 171/668 cut-off events. For 1130/1351 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 5158 event pairs, 46 based on Foata normal form. 20/464 useless extension candidates. Maximal degree in co-relation 1770. Up to 222 conditions per place. [2021-04-28 20:47:24,439 INFO L132 encePairwiseOnDemand]: 388/391 looper letters, 5 selfloop transitions, 6 changer transitions 0/70 dead transitions. [2021-04-28 20:47:24,440 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 70 transitions, 381 flow [2021-04-28 20:47:24,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 20:47:24,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 20:47:24,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 828 transitions. [2021-04-28 20:47:24,443 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7058823529411765 [2021-04-28 20:47:24,443 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 828 transitions. [2021-04-28 20:47:24,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 828 transitions. [2021-04-28 20:47:24,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:47:24,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 828 transitions. [2021-04-28 20:47:24,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 276.0) internal successors, (828), 3 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:24,450 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 20:47:24,451 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 20:47:24,451 INFO L185 Difference]: Start difference. First operand has 71 places, 70 transitions, 359 flow. Second operand 3 states and 828 transitions. [2021-04-28 20:47:24,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 70 transitions, 381 flow [2021-04-28 20:47:24,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 70 transitions, 381 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 20:47:24,457 INFO L241 Difference]: Finished difference. Result has 74 places, 70 transitions, 379 flow [2021-04-28 20:47:24,457 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=379, PETRI_PLACES=74, PETRI_TRANSITIONS=70} [2021-04-28 20:47:24,458 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -78 predicate places. [2021-04-28 20:47:24,458 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:47:24,458 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 70 transitions, 379 flow [2021-04-28 20:47:24,458 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 70 transitions, 379 flow [2021-04-28 20:47:24,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 70 transitions, 379 flow [2021-04-28 20:47:24,535 INFO L129 PetriNetUnfolder]: 171/652 cut-off events. [2021-04-28 20:47:24,535 INFO L130 PetriNetUnfolder]: For 1100/1134 co-relation queries the response was YES. [2021-04-28 20:47:24,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1766 conditions, 652 events. 171/652 cut-off events. For 1100/1134 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5069 event pairs, 48 based on Foata normal form. 0/441 useless extension candidates. Maximal degree in co-relation 1747. Up to 222 conditions per place. [2021-04-28 20:47:24,549 INFO L146 LiptonReduction]: Number of co-enabled transitions 2356 [2021-04-28 20:47:24,555 INFO L158 LiptonReduction]: Checked pairs total: 884 [2021-04-28 20:47:24,555 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:47:24,555 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 97 [2021-04-28 20:47:24,556 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 70 transitions, 379 flow [2021-04-28 20:47:24,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:24,557 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:47:24,557 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:47:24,557 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 20:47:24,557 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:47:24,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:47:24,558 INFO L82 PathProgramCache]: Analyzing trace with hash 657915525, now seen corresponding path program 1 times [2021-04-28 20:47:24,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:47:24,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66560707] [2021-04-28 20:47:24,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:47:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:47:24,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:47:24,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:47:24,622 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 20:47:24,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:47:24,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:47:24,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:47:24,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:47:24,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66560707] [2021-04-28 20:47:24,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:47:24,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 20:47:24,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549321471] [2021-04-28 20:47:24,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 20:47:24,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:47:24,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 20:47:24,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 20:47:24,640 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 391 [2021-04-28 20:47:24,641 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 70 transitions, 379 flow. Second operand has 4 states, 4 states have (on average 297.75) internal successors, (1191), 4 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:24,641 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:47:24,641 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 391 [2021-04-28 20:47:24,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:47:36,422 INFO L129 PetriNetUnfolder]: 82019/121498 cut-off events. [2021-04-28 20:47:36,423 INFO L130 PetriNetUnfolder]: For 9076/9295 co-relation queries the response was YES. [2021-04-28 20:47:36,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 247106 conditions, 121498 events. 82019/121498 cut-off events. For 9076/9295 co-relation queries the response was YES. Maximal size of possible extension queue 18764. Compared 1172103 event pairs, 43578 based on Foata normal form. 2264/35651 useless extension candidates. Maximal degree in co-relation 247085. Up to 77941 conditions per place. [2021-04-28 20:47:37,299 INFO L132 encePairwiseOnDemand]: 371/391 looper letters, 34 selfloop transitions, 33 changer transitions 0/114 dead transitions. [2021-04-28 20:47:37,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 114 transitions, 601 flow [2021-04-28 20:47:37,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 20:47:37,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 20:47:37,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1551 transitions. [2021-04-28 20:47:37,305 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7933503836317135 [2021-04-28 20:47:37,305 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1551 transitions. [2021-04-28 20:47:37,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1551 transitions. [2021-04-28 20:47:37,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:47:37,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1551 transitions. [2021-04-28 20:47:37,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 310.2) internal successors, (1551), 5 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:37,315 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 20:47:37,316 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 20:47:37,316 INFO L185 Difference]: Start difference. First operand has 74 places, 70 transitions, 379 flow. Second operand 5 states and 1551 transitions. [2021-04-28 20:47:37,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 114 transitions, 601 flow [2021-04-28 20:47:37,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 114 transitions, 593 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 20:47:37,459 INFO L241 Difference]: Finished difference. Result has 80 places, 101 transitions, 617 flow [2021-04-28 20:47:37,460 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=617, PETRI_PLACES=80, PETRI_TRANSITIONS=101} [2021-04-28 20:47:37,460 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -72 predicate places. [2021-04-28 20:47:37,460 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:47:37,460 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 101 transitions, 617 flow [2021-04-28 20:47:37,461 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 101 transitions, 617 flow [2021-04-28 20:47:37,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 101 transitions, 617 flow [2021-04-28 20:47:46,863 INFO L129 PetriNetUnfolder]: 66957/99855 cut-off events. [2021-04-28 20:47:46,863 INFO L130 PetriNetUnfolder]: For 26832/96604 co-relation queries the response was YES. [2021-04-28 20:47:47,272 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287788 conditions, 99855 events. 66957/99855 cut-off events. For 26832/96604 co-relation queries the response was YES. Maximal size of possible extension queue 14525. Compared 977034 event pairs, 38198 based on Foata normal form. 34/29797 useless extension candidates. Maximal degree in co-relation 287765. Up to 94751 conditions per place. [2021-04-28 20:47:48,821 INFO L146 LiptonReduction]: Number of co-enabled transitions 3644 [2021-04-28 20:47:54,087 INFO L158 LiptonReduction]: Checked pairs total: 1341 [2021-04-28 20:47:54,087 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:47:54,088 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16628 [2021-04-28 20:47:54,092 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 101 transitions, 617 flow [2021-04-28 20:47:54,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 297.75) internal successors, (1191), 4 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:54,092 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:47:54,092 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 20:47:54,093 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 20:47:54,093 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:47:54,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:47:54,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1340953811, now seen corresponding path program 1 times [2021-04-28 20:47:54,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:47:54,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111016531] [2021-04-28 20:47:54,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:47:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:47:54,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:47:54,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:47:54,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:47:54,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:47:54,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:47:54,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111016531] [2021-04-28 20:47:54,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:47:54,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 20:47:54,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368424661] [2021-04-28 20:47:54,171 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 20:47:54,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:47:54,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 20:47:54,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 20:47:54,174 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 391 [2021-04-28 20:47:54,175 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 101 transitions, 617 flow. Second operand has 3 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:47:54,175 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:47:54,175 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 391 [2021-04-28 20:47:54,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:48:11,191 INFO L129 PetriNetUnfolder]: 114989/169785 cut-off events. [2021-04-28 20:48:11,191 INFO L130 PetriNetUnfolder]: For 47988/947918 co-relation queries the response was YES. [2021-04-28 20:48:11,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 487924 conditions, 169785 events. 114989/169785 cut-off events. For 47988/947918 co-relation queries the response was YES. Maximal size of possible extension queue 24135. Compared 1684884 event pairs, 66104 based on Foata normal form. 696/49082 useless extension candidates. Maximal degree in co-relation 487899. Up to 162362 conditions per place. [2021-04-28 20:48:12,711 INFO L132 encePairwiseOnDemand]: 388/391 looper letters, 4 selfloop transitions, 9 changer transitions 0/101 dead transitions. [2021-04-28 20:48:12,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 101 transitions, 643 flow [2021-04-28 20:48:12,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 20:48:12,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 20:48:12,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 834 transitions. [2021-04-28 20:48:12,714 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.710997442455243 [2021-04-28 20:48:12,714 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 834 transitions. [2021-04-28 20:48:12,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 834 transitions. [2021-04-28 20:48:12,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:48:12,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 834 transitions. [2021-04-28 20:48:12,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:48:12,720 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 20:48:12,721 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 20:48:12,721 INFO L185 Difference]: Start difference. First operand has 80 places, 101 transitions, 617 flow. Second operand 3 states and 834 transitions. [2021-04-28 20:48:12,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 101 transitions, 643 flow [2021-04-28 20:48:13,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 101 transitions, 643 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 20:48:13,070 INFO L241 Difference]: Finished difference. Result has 83 places, 101 transitions, 646 flow [2021-04-28 20:48:13,070 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=617, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=646, PETRI_PLACES=83, PETRI_TRANSITIONS=101} [2021-04-28 20:48:13,071 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -69 predicate places. [2021-04-28 20:48:13,071 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:48:13,071 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 101 transitions, 646 flow [2021-04-28 20:48:13,071 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 101 transitions, 646 flow [2021-04-28 20:48:13,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 101 transitions, 646 flow [2021-04-28 20:48:28,532 INFO L129 PetriNetUnfolder]: 109897/161956 cut-off events. [2021-04-28 20:48:28,532 INFO L130 PetriNetUnfolder]: For 39727/190928 co-relation queries the response was YES. [2021-04-28 20:48:29,201 INFO L84 FinitePrefix]: Finished finitePrefix Result has 466157 conditions, 161956 events. 109897/161956 cut-off events. For 39727/190928 co-relation queries the response was YES. Maximal size of possible extension queue 22432. Compared 1625650 event pairs, 63769 based on Foata normal form. 44/47983 useless extension candidates. Maximal degree in co-relation 466132. Up to 155183 conditions per place. [2021-04-28 20:48:30,884 INFO L146 LiptonReduction]: Number of co-enabled transitions 3642 [2021-04-28 20:48:31,337 INFO L158 LiptonReduction]: Checked pairs total: 1341 [2021-04-28 20:48:31,337 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:48:31,337 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18266 [2021-04-28 20:48:31,338 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 101 transitions, 646 flow [2021-04-28 20:48:31,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:48:31,339 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:48:31,339 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 20:48:31,339 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 20:48:31,339 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:48:31,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:48:31,340 INFO L82 PathProgramCache]: Analyzing trace with hash -837783609, now seen corresponding path program 1 times [2021-04-28 20:48:31,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:48:31,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141907693] [2021-04-28 20:48:31,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:48:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:48:31,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:48:31,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:48:31,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:48:31,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:48:31,400 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 20:48:31,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:48:31,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:48:31,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:48:31,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:48:31,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141907693] [2021-04-28 20:48:31,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:48:31,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 20:48:31,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722864090] [2021-04-28 20:48:31,423 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 20:48:31,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:48:31,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 20:48:31,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 20:48:31,426 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 391 [2021-04-28 20:48:31,428 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 101 transitions, 646 flow. Second operand has 5 states, 5 states have (on average 297.8) internal successors, (1489), 5 states have internal predecessors, (1489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:48:31,428 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:48:31,428 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 391 [2021-04-28 20:48:31,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:48:57,975 INFO L129 PetriNetUnfolder]: 146624/225174 cut-off events. [2021-04-28 20:48:57,975 INFO L130 PetriNetUnfolder]: For 77265/4465145 co-relation queries the response was YES. [2021-04-28 20:48:58,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 867877 conditions, 225174 events. 146624/225174 cut-off events. For 77265/4465145 co-relation queries the response was YES. Maximal size of possible extension queue 35007. Compared 2387674 event pairs, 29297 based on Foata normal form. 4168/74049 useless extension candidates. Maximal degree in co-relation 867850. Up to 211799 conditions per place. [2021-04-28 20:48:59,307 INFO L132 encePairwiseOnDemand]: 371/391 looper letters, 35 selfloop transitions, 64 changer transitions 0/146 dead transitions. [2021-04-28 20:48:59,307 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 146 transitions, 1093 flow [2021-04-28 20:48:59,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 20:48:59,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 20:48:59,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2175 transitions. [2021-04-28 20:48:59,314 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.794665692363902 [2021-04-28 20:48:59,314 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2175 transitions. [2021-04-28 20:48:59,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2175 transitions. [2021-04-28 20:48:59,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:48:59,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2175 transitions. [2021-04-28 20:48:59,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 310.7142857142857) internal successors, (2175), 7 states have internal predecessors, (2175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:48:59,328 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 20:48:59,329 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 20:48:59,329 INFO L185 Difference]: Start difference. First operand has 83 places, 101 transitions, 646 flow. Second operand 7 states and 2175 transitions. [2021-04-28 20:48:59,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 146 transitions, 1093 flow [2021-04-28 20:48:59,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 146 transitions, 1082 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 20:48:59,937 INFO L241 Difference]: Finished difference. Result has 91 places, 132 transitions, 1077 flow [2021-04-28 20:48:59,937 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=635, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1077, PETRI_PLACES=91, PETRI_TRANSITIONS=132} [2021-04-28 20:48:59,937 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -61 predicate places. [2021-04-28 20:48:59,938 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:48:59,938 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 132 transitions, 1077 flow [2021-04-28 20:48:59,938 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 132 transitions, 1077 flow [2021-04-28 20:48:59,939 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 132 transitions, 1077 flow [2021-04-28 20:49:23,512 INFO L129 PetriNetUnfolder]: 127923/198203 cut-off events. [2021-04-28 20:49:23,512 INFO L130 PetriNetUnfolder]: For 318037/960483 co-relation queries the response was YES. [2021-04-28 20:49:24,896 INFO L84 FinitePrefix]: Finished finitePrefix Result has 942969 conditions, 198203 events. 127923/198203 cut-off events. For 318037/960483 co-relation queries the response was YES. Maximal size of possible extension queue 29502. Compared 2192344 event pairs, 28361 based on Foata normal form. 75/60190 useless extension candidates. Maximal degree in co-relation 942940. Up to 191129 conditions per place. [2021-04-28 20:49:26,748 INFO L146 LiptonReduction]: Number of co-enabled transitions 5042 [2021-04-28 20:49:39,325 INFO L158 LiptonReduction]: Checked pairs total: 2380 [2021-04-28 20:49:39,326 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:49:39,326 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39388 [2021-04-28 20:49:39,327 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 132 transitions, 1077 flow [2021-04-28 20:49:39,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 297.8) internal successors, (1489), 5 states have internal predecessors, (1489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:49:39,328 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:49:39,328 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:49:39,328 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 20:49:39,328 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:49:39,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:49:39,329 INFO L82 PathProgramCache]: Analyzing trace with hash 755320116, now seen corresponding path program 1 times [2021-04-28 20:49:39,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:49:39,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431807755] [2021-04-28 20:49:39,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:49:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:49:39,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:49:39,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:49:39,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:49:39,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:49:39,414 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 20:49:39,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 20:49:39,420 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 20:49:39,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:49:39,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:49:39,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:49:39,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:49:39,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431807755] [2021-04-28 20:49:39,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:49:39,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 20:49:39,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510443212] [2021-04-28 20:49:39,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 20:49:39,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:49:39,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 20:49:39,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 20:49:39,436 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 391 [2021-04-28 20:49:39,437 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 132 transitions, 1077 flow. Second operand has 6 states, 6 states have (on average 297.8333333333333) internal successors, (1787), 6 states have internal predecessors, (1787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:49:39,438 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:49:39,438 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 391 [2021-04-28 20:49:39,438 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:50:12,641 INFO L129 PetriNetUnfolder]: 138542/227757 cut-off events. [2021-04-28 20:50:12,642 INFO L130 PetriNetUnfolder]: For 247437/12154231 co-relation queries the response was YES. [2021-04-28 20:50:14,031 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1299290 conditions, 227757 events. 138542/227757 cut-off events. For 247437/12154231 co-relation queries the response was YES. Maximal size of possible extension queue 36180. Compared 2664831 event pairs, 4700 based on Foata normal form. 4387/74792 useless extension candidates. Maximal degree in co-relation 1299259. Up to 216002 conditions per place. [2021-04-28 20:50:14,551 INFO L132 encePairwiseOnDemand]: 371/391 looper letters, 24 selfloop transitions, 95 changer transitions 12/178 dead transitions. [2021-04-28 20:50:14,552 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 178 transitions, 1749 flow [2021-04-28 20:50:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 20:50:14,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 20:50:14,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2799 transitions. [2021-04-28 20:50:14,561 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7953964194373402 [2021-04-28 20:50:14,561 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2799 transitions. [2021-04-28 20:50:14,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2799 transitions. [2021-04-28 20:50:14,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:50:14,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2799 transitions. [2021-04-28 20:50:14,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 311.0) internal successors, (2799), 9 states have internal predecessors, (2799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:14,578 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 20:50:14,580 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 20:50:14,580 INFO L185 Difference]: Start difference. First operand has 91 places, 132 transitions, 1077 flow. Second operand 9 states and 2799 transitions. [2021-04-28 20:50:14,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 178 transitions, 1749 flow [2021-04-28 20:51:41,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 178 transitions, 1586 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 20:51:41,223 INFO L241 Difference]: Finished difference. Result has 99 places, 163 transitions, 1505 flow [2021-04-28 20:51:41,224 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1505, PETRI_PLACES=99, PETRI_TRANSITIONS=163} [2021-04-28 20:51:41,224 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -53 predicate places. [2021-04-28 20:51:41,224 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:51:41,224 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 163 transitions, 1505 flow [2021-04-28 20:51:41,225 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 163 transitions, 1505 flow [2021-04-28 20:51:41,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 163 transitions, 1505 flow [2021-04-28 20:52:03,593 INFO L129 PetriNetUnfolder]: 92960/164615 cut-off events. [2021-04-28 20:52:03,594 INFO L130 PetriNetUnfolder]: For 616517/927681 co-relation queries the response was YES. [2021-04-28 20:52:04,956 INFO L84 FinitePrefix]: Finished finitePrefix Result has 970740 conditions, 164615 events. 92960/164615 cut-off events. For 616517/927681 co-relation queries the response was YES. Maximal size of possible extension queue 30679. Compared 2145216 event pairs, 4592 based on Foata normal form. 1/49988 useless extension candidates. Maximal degree in co-relation 970708. Up to 134866 conditions per place. [2021-04-28 20:52:06,674 INFO L146 LiptonReduction]: Number of co-enabled transitions 5774 [2021-04-28 20:53:32,358 INFO L158 LiptonReduction]: Checked pairs total: 3440 [2021-04-28 20:53:32,358 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:53:32,358 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 111134 [2021-04-28 20:53:32,359 INFO L480 AbstractCegarLoop]: Abstraction has has 99 places, 163 transitions, 1505 flow [2021-04-28 20:53:32,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 297.8333333333333) internal successors, (1787), 6 states have internal predecessors, (1787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:53:32,360 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:53:32,360 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] [2021-04-28 20:53:32,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 20:53:32,361 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:53:32,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:53:32,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1147823040, now seen corresponding path program 1 times [2021-04-28 20:53:32,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:53:32,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180571103] [2021-04-28 20:53:32,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:53:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:53:32,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:53:32,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:53:32,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:53:32,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:53:32,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:53:32,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:53:32,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:53:32,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:53:32,464 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 20:53:32,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:53:32,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:53:32,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:53:32,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:53:32,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180571103] [2021-04-28 20:53:32,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:53:32,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 20:53:32,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6322913] [2021-04-28 20:53:32,477 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 20:53:32,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:53:32,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 20:53:32,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 20:53:32,480 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 391 [2021-04-28 20:53:32,482 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 163 transitions, 1505 flow. Second operand has 7 states, 7 states have (on average 297.85714285714283) internal successors, (2085), 7 states have internal predecessors, (2085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:53:32,482 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:53:32,482 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 391 [2021-04-28 20:53:32,482 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:54:02,529 INFO L129 PetriNetUnfolder]: 97583/176673 cut-off events. [2021-04-28 20:54:02,529 INFO L130 PetriNetUnfolder]: For 465872/10169790 co-relation queries the response was YES. [2021-04-28 20:54:03,816 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1198595 conditions, 176673 events. 97583/176673 cut-off events. For 465872/10169790 co-relation queries the response was YES. Maximal size of possible extension queue 33846. Compared 2291820 event pairs, 29 based on Foata normal form. 3081/56153 useless extension candidates. Maximal degree in co-relation 1198561. Up to 140851 conditions per place. [2021-04-28 20:54:04,107 INFO L132 encePairwiseOnDemand]: 371/391 looper letters, 6 selfloop transitions, 113 changer transitions 38/198 dead transitions. [2021-04-28 20:54:04,108 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 198 transitions, 2185 flow [2021-04-28 20:54:04,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 20:54:04,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 20:54:04,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3399 transitions. [2021-04-28 20:54:04,117 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7902813299232737 [2021-04-28 20:54:04,117 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3399 transitions. [2021-04-28 20:54:04,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3399 transitions. [2021-04-28 20:54:04,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:54:04,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3399 transitions. [2021-04-28 20:54:04,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 309.0) internal successors, (3399), 11 states have internal predecessors, (3399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:54:04,134 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 20:54:04,136 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 20:54:04,136 INFO L185 Difference]: Start difference. First operand has 99 places, 163 transitions, 1505 flow. Second operand 11 states and 3399 transitions. [2021-04-28 20:54:04,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 198 transitions, 2185 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown