/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_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 20:47:12,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 20:47:12,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 20:47:12,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 20:47:12,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 20:47:12,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 20:47:12,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 20:47:12,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 20:47:12,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 20:47:12,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 20:47:12,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 20:47:12,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 20:47:12,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 20:47:12,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 20:47:12,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 20:47:12,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 20:47:12,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 20:47:12,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 20:47:12,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 20:47:12,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 20:47:12,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 20:47:12,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 20:47:12,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 20:47:12,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 20:47:12,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 20:47:12,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 20:47:12,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 20:47:12,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 20:47:12,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 20:47:12,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 20:47:12,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 20:47:12,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 20:47:12,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 20:47:12,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 20:47:12,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 20:47:12,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 20:47:12,491 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 20:47:12,542 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 20:47:12,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 20:47:12,547 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 20:47:12,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 20:47:12,548 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 20:47:12,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 20:47:12,548 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 20:47:12,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 20:47:12,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 20:47:12,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 20:47:12,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 20:47:12,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 20:47:12,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 20:47:12,551 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 20:47:12,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 20:47:12,552 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 20:47:12,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 20:47:12,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 20:47:12,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 20:47:12,553 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 20:47:12,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 20:47:12,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 20:47:12,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 20:47:12,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 20:47:12,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 20:47:12,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 20:47:12,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 20:47:12,555 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 20:47:12,555 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 20:47:12,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 20:47:12,556 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 20:47:12,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 20:47:13,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 20:47:13,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 20:47:13,027 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 20:47:13,028 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 20:47:13,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix040_rmo.opt.i [2021-04-28 20:47:13,114 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcb162931/d0836115c2ea4aa59d1b47275214168d/FLAG66d17c0ba [2021-04-28 20:47:13,809 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 20:47:13,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix040_rmo.opt.i [2021-04-28 20:47:13,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcb162931/d0836115c2ea4aa59d1b47275214168d/FLAG66d17c0ba [2021-04-28 20:47:14,099 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcb162931/d0836115c2ea4aa59d1b47275214168d [2021-04-28 20:47:14,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 20:47:14,150 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 20:47:14,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 20:47:14,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 20:47:14,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 20:47:14,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 08:47:14" (1/1) ... [2021-04-28 20:47:14,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@397716c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:47:14, skipping insertion in model container [2021-04-28 20:47:14,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 08:47:14" (1/1) ... [2021-04-28 20:47:14,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 20:47:14,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 20:47:14,396 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_rmo.opt.i[948,961] [2021-04-28 20:47:14,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 20:47:14,711 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 20:47:14,723 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_rmo.opt.i[948,961] [2021-04-28 20:47:14,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 20:47:14,925 INFO L208 MainTranslator]: Completed translation [2021-04-28 20:47:14,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:47:14 WrapperNode [2021-04-28 20:47:14,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 20:47:14,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 20:47:14,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 20:47:14,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 20:47:14,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:47:14" (1/1) ... [2021-04-28 20:47:14,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:47:14" (1/1) ... [2021-04-28 20:47:14,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 20:47:14,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 20:47:14,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 20:47:14,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 20:47:15,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:47:14" (1/1) ... [2021-04-28 20:47:15,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:47:14" (1/1) ... [2021-04-28 20:47:15,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:47:14" (1/1) ... [2021-04-28 20:47:15,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:47:14" (1/1) ... [2021-04-28 20:47:15,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:47:14" (1/1) ... [2021-04-28 20:47:15,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:47:14" (1/1) ... [2021-04-28 20:47:15,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:47:14" (1/1) ... [2021-04-28 20:47:15,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 20:47:15,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 20:47:15,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 20:47:15,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 20:47:15,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:47:14" (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 20:47:15,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 20:47:15,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 20:47:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 20:47:15,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 20:47:15,166 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 20:47:15,167 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 20:47:15,167 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 20:47:15,168 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 20:47:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 20:47:15,168 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 20:47:15,168 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 20:47:15,169 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 20:47:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 20:47:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 20:47:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 20:47:15,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 20:47:15,172 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 20:47:16,993 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 20:47:16,993 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 20:47:16,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 08:47:16 BoogieIcfgContainer [2021-04-28 20:47:16,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 20:47:16,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 20:47:16,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 20:47:17,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 20:47:17,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 08:47:14" (1/3) ... [2021-04-28 20:47:17,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e173029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 08:47:17, skipping insertion in model container [2021-04-28 20:47:17,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:47:14" (2/3) ... [2021-04-28 20:47:17,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e173029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 08:47:17, skipping insertion in model container [2021-04-28 20:47:17,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 08:47:16" (3/3) ... [2021-04-28 20:47:17,004 INFO L111 eAbstractionObserver]: Analyzing ICFG mix040_rmo.opt.i [2021-04-28 20:47:17,012 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 20:47:17,017 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 20:47:17,018 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 20:47:17,057 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,057 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,057 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,057 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,058 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,058 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,058 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,059 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,060 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,060 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,061 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,061 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,061 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,062 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,062 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,062 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,063 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,063 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,063 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,063 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,063 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,064 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,065 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,066 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,066 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,066 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,066 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,066 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,066 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,066 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,068 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,068 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,068 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,068 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,068 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,068 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,069 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,070 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,072 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,073 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,074 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,075 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,076 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,077 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,078 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,080 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,081 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,081 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,081 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,082 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,082 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,082 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,083 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,083 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,083 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,083 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,083 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,084 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,084 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,084 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,084 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,085 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,086 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,086 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,086 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,086 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,087 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,087 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,087 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,087 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,087 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,087 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,088 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,088 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,088 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,089 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,091 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,091 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,091 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,092 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,094 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,094 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,094 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,094 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,097 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,097 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,097 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,097 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,097 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,098 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,098 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,098 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,098 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,098 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,099 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,099 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,099 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,099 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,099 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,100 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,100 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,100 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,100 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,100 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,101 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,101 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,101 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,103 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,103 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,103 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,103 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,104 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,104 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,104 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,104 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,105 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,105 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,105 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,105 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:47:17,106 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 20:47:17,131 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 20:47:17,156 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 20:47:17,156 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 20:47:17,156 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 20:47:17,157 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 20:47:17,157 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 20:47:17,157 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 20:47:17,157 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 20:47:17,157 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 20:47:17,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 116 transitions, 252 flow [2021-04-28 20:47:17,229 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-04-28 20:47:17,229 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:47:17,235 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 20:47:17,235 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 116 transitions, 252 flow [2021-04-28 20:47:17,241 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 112 transitions, 236 flow [2021-04-28 20:47:17,243 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:47:17,260 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 112 transitions, 236 flow [2021-04-28 20:47:17,264 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 112 transitions, 236 flow [2021-04-28 20:47:17,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 236 flow [2021-04-28 20:47:17,298 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-04-28 20:47:17,298 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:47:17,299 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 20:47:17,304 INFO L146 LiptonReduction]: Number of co-enabled transitions 2488 [2021-04-28 20:47:20,728 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 20:47:20,864 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 20:47:21,542 WARN L205 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 20:47:21,763 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 20:47:37,317 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:47:38,052 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 20:47:38,166 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 20:47:38,363 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 20:47:39,225 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:47:39,339 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:47:39,454 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:47:39,564 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:47:40,182 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 20:47:41,087 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:47:41,191 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:47:41,495 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 20:47:41,642 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 20:47:41,823 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 20:47:41,969 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 20:47:42,517 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 20:47:42,672 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 20:47:42,807 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 20:47:42,950 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 20:47:43,781 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:47:43,884 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:47:43,988 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:47:44,092 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:47:44,232 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:47:44,348 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:47:44,463 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:47:44,578 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:47:44,684 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 20:47:44,788 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 20:47:44,895 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 20:47:45,000 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 20:47:45,150 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:45,291 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:45,422 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:45,554 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:45,693 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:47:45,835 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:47:45,978 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:47:46,116 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:47:46,254 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:47:46,406 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:47:46,556 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:47:46,704 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:47:46,839 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:47:46,990 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:47:47,148 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:47:47,301 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:47:47,459 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:47:47,619 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:47:47,814 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:47:47,975 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:47:48,117 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:48,251 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:48,385 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:48,520 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:48,639 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:47:48,759 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:47:48,880 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:47:49,003 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:47:49,135 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:47:49,264 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:47:49,396 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:47:49,521 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:47:49,685 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 20:47:49,850 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 20:47:50,010 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 20:47:50,169 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 20:47:50,341 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 20:47:50,519 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 20:47:50,693 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 20:47:50,871 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 20:47:50,990 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:47:51,112 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:47:51,272 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:47:51,398 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:47:51,546 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:47:51,694 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:47:51,844 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:47:51,996 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:47:52,176 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 20:47:52,357 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 20:47:52,538 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 20:47:52,721 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 20:47:52,854 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:52,981 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:53,116 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:53,256 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:47:53,483 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:53,684 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:53,904 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:54,127 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:54,329 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 20:47:54,538 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 20:47:54,770 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 20:47:54,974 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 20:47:55,529 WARN L205 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-04-28 20:47:55,791 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-04-28 20:47:56,334 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-04-28 20:47:56,589 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-04-28 20:47:56,794 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 20:47:56,993 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 20:47:57,191 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 20:47:57,390 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 20:47:57,586 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 20:47:57,782 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 20:47:57,972 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 20:47:58,190 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 20:47:58,425 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:58,666 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:58,911 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:59,150 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:59,394 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:59,606 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:47:59,822 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:48:00,039 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:48:00,254 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:48:00,463 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:48:00,671 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:48:00,881 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:48:01,001 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:48:01,115 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:48:01,232 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:48:01,348 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:48:01,880 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2021-04-28 20:48:02,129 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-04-28 20:48:02,667 WARN L205 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2021-04-28 20:48:02,925 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-04-28 20:48:03,150 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:48:03,372 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:48:03,586 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:48:03,807 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:48:04,024 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:48:04,240 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:48:04,450 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:48:04,661 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:48:04,723 INFO L158 LiptonReduction]: Checked pairs total: 23934 [2021-04-28 20:48:04,723 INFO L160 LiptonReduction]: Total number of compositions: 275 [2021-04-28 20:48:04,729 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47487 [2021-04-28 20:48:04,758 INFO L129 PetriNetUnfolder]: 0/99 cut-off events. [2021-04-28 20:48:04,758 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:48:04,759 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:48:04,759 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:48:04,760 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 20:48:04,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:48:04,766 INFO L82 PathProgramCache]: Analyzing trace with hash 478744, now seen corresponding path program 1 times [2021-04-28 20:48:04,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:48:04,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185189023] [2021-04-28 20:48:04,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:48:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:48:05,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:48:05,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:48:05,073 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 20:48:05,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185189023] [2021-04-28 20:48:05,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:48:05,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 20:48:05,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347542367] [2021-04-28 20:48:05,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 20:48:05,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:48:05,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 20:48:05,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 20:48:05,111 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 391 [2021-04-28 20:48:05,120 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 20:48:05,121 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:48:05,121 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 391 [2021-04-28 20:48:05,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:48:05,310 INFO L129 PetriNetUnfolder]: 17/390 cut-off events. [2021-04-28 20:48:05,310 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:48:05,313 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 20:48:05,316 INFO L132 encePairwiseOnDemand]: 374/391 looper letters, 5 selfloop transitions, 4 changer transitions 62/138 dead transitions. [2021-04-28 20:48:05,316 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 138 transitions, 326 flow [2021-04-28 20:48:05,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 20:48:05,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 20:48:05,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1009 transitions. [2021-04-28 20:48:05,338 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8601875532821824 [2021-04-28 20:48:05,339 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1009 transitions. [2021-04-28 20:48:05,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1009 transitions. [2021-04-28 20:48:05,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:48:05,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1009 transitions. [2021-04-28 20:48:05,352 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 20:48:05,365 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 20:48:05,366 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 20:48:05,369 INFO L185 Difference]: Start difference. First operand has 152 places, 140 transitions, 292 flow. Second operand 3 states and 1009 transitions. [2021-04-28 20:48:05,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 138 transitions, 326 flow [2021-04-28 20:48:05,374 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 20:48:05,378 INFO L241 Difference]: Finished difference. Result has 147 places, 74 transitions, 164 flow [2021-04-28 20:48:05,381 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 20:48:05,382 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -5 predicate places. [2021-04-28 20:48:05,382 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:48:05,382 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 74 transitions, 164 flow [2021-04-28 20:48:05,382 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 74 transitions, 164 flow [2021-04-28 20:48:05,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 74 transitions, 164 flow [2021-04-28 20:48:05,394 INFO L129 PetriNetUnfolder]: 0/74 cut-off events. [2021-04-28 20:48:05,395 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:48:05,395 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 20:48:05,397 INFO L146 LiptonReduction]: Number of co-enabled transitions 2848 [2021-04-28 20:48:05,745 INFO L158 LiptonReduction]: Checked pairs total: 3664 [2021-04-28 20:48:05,745 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:48:05,746 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 364 [2021-04-28 20:48:05,748 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 74 transitions, 164 flow [2021-04-28 20:48:05,749 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 20:48:05,749 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:48:05,749 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:48:05,750 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 20:48:05,750 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 20:48:05,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:48:05,751 INFO L82 PathProgramCache]: Analyzing trace with hash 460154925, now seen corresponding path program 1 times [2021-04-28 20:48:05,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:48:05,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465650255] [2021-04-28 20:48:05,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:48:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:48:05,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:48:05,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:48:05,846 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 20:48:05,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465650255] [2021-04-28 20:48:05,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:48:05,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 20:48:05,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947549801] [2021-04-28 20:48:05,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 20:48:05,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:48:05,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 20:48:05,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 20:48:05,851 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 391 [2021-04-28 20:48:05,852 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 74 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 276.6666666666667) internal successors, (830), 3 states have internal predecessors, (830), 0 states have call successors, (0), 0 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 20:48:05,852 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:48:05,853 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 391 [2021-04-28 20:48:05,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:48:06,025 INFO L129 PetriNetUnfolder]: 103/368 cut-off events. [2021-04-28 20:48:06,026 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:48:06,028 INFO L84 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 368 events. 103/368 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 2698 event pairs, 27 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 586. Up to 188 conditions per place. [2021-04-28 20:48:06,029 INFO L132 encePairwiseOnDemand]: 385/391 looper letters, 3 selfloop transitions, 3 changer transitions 50/100 dead transitions. [2021-04-28 20:48:06,029 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 100 transitions, 328 flow [2021-04-28 20:48:06,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 20:48:06,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 20:48:06,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 881 transitions. [2021-04-28 20:48:06,033 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7510656436487638 [2021-04-28 20:48:06,034 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 881 transitions. [2021-04-28 20:48:06,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 881 transitions. [2021-04-28 20:48:06,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:48:06,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 881 transitions. [2021-04-28 20:48:06,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 293.6666666666667) internal successors, (881), 3 states have internal predecessors, (881), 0 states have call successors, (0), 0 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 20:48:06,041 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 20:48:06,043 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 20:48:06,043 INFO L185 Difference]: Start difference. First operand has 85 places, 74 transitions, 164 flow. Second operand 3 states and 881 transitions. [2021-04-28 20:48:06,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 100 transitions, 328 flow [2021-04-28 20:48:06,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 100 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 20:48:06,047 INFO L241 Difference]: Finished difference. Result has 86 places, 50 transitions, 123 flow [2021-04-28 20:48:06,047 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=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=86, PETRI_TRANSITIONS=50} [2021-04-28 20:48:06,047 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -66 predicate places. [2021-04-28 20:48:06,048 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:48:06,048 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 50 transitions, 123 flow [2021-04-28 20:48:06,048 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 50 transitions, 123 flow [2021-04-28 20:48:06,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 50 transitions, 123 flow [2021-04-28 20:48:06,057 INFO L129 PetriNetUnfolder]: 3/60 cut-off events. [2021-04-28 20:48:06,057 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:48:06,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 60 events. 3/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 229 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 75. Up to 10 conditions per place. [2021-04-28 20:48:06,059 INFO L146 LiptonReduction]: Number of co-enabled transitions 1510 [2021-04-28 20:48:06,487 INFO L158 LiptonReduction]: Checked pairs total: 2044 [2021-04-28 20:48:06,487 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 20:48:06,488 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 440 [2021-04-28 20:48:06,489 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 123 flow [2021-04-28 20:48:06,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 276.6666666666667) internal successors, (830), 3 states have internal predecessors, (830), 0 states have call successors, (0), 0 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 20:48:06,491 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:48:06,491 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:48:06,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 20:48:06,491 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 20:48:06,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:48:06,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1379898315, now seen corresponding path program 1 times [2021-04-28 20:48:06,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:48:06,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340198124] [2021-04-28 20:48:06,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:48:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:48:06,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:48:06,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:48:06,570 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 20:48:06,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340198124] [2021-04-28 20:48:06,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:48:06,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 20:48:06,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060956477] [2021-04-28 20:48:06,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 20:48:06,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:48:06,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 20:48:06,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 20:48:06,574 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 392 [2021-04-28 20:48:06,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 123 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 20:48:06,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:48:06,576 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 392 [2021-04-28 20:48:06,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:48:06,591 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2021-04-28 20:48:06,591 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-28 20:48:06,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 62 events. 3/62 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 228 event pairs, 1 based on Foata normal form. 1/35 useless extension candidates. Maximal degree in co-relation 81. Up to 10 conditions per place. [2021-04-28 20:48:06,593 INFO L132 encePairwiseOnDemand]: 389/392 looper letters, 1 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2021-04-28 20:48:06,593 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 50 transitions, 129 flow [2021-04-28 20:48:06,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 20:48:06,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 20:48:06,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 796 transitions. [2021-04-28 20:48:06,596 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6768707482993197 [2021-04-28 20:48:06,596 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 796 transitions. [2021-04-28 20:48:06,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 796 transitions. [2021-04-28 20:48:06,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:48:06,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 796 transitions. [2021-04-28 20:48:06,624 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 20:48:06,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 0 states have call successors, (0), 0 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 20:48:06,629 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 0 states have call successors, (0), 0 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 20:48:06,629 INFO L185 Difference]: Start difference. First operand has 60 places, 50 transitions, 123 flow. Second operand 3 states and 796 transitions. [2021-04-28 20:48:06,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 50 transitions, 129 flow [2021-04-28 20:48:06,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 50 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 20:48:06,634 INFO L241 Difference]: Finished difference. Result has 62 places, 50 transitions, 128 flow [2021-04-28 20:48:06,634 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2021-04-28 20:48:06,634 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -90 predicate places. [2021-04-28 20:48:06,634 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:48:06,634 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 50 transitions, 128 flow [2021-04-28 20:48:06,636 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 50 transitions, 128 flow [2021-04-28 20:48:06,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 128 flow [2021-04-28 20:48:06,645 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2021-04-28 20:48:06,645 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-28 20:48:06,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 62 events. 3/62 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 245 event pairs, 1 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 80. Up to 10 conditions per place. [2021-04-28 20:48:06,648 INFO L146 LiptonReduction]: Number of co-enabled transitions 1500 [2021-04-28 20:48:06,658 INFO L158 LiptonReduction]: Checked pairs total: 958 [2021-04-28 20:48:06,659 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:48:06,659 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-04-28 20:48:06,660 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 128 flow [2021-04-28 20:48:06,661 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 20:48:06,662 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:48:06,662 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:48:06,662 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 20:48:06,662 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 20:48:06,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:48:06,663 INFO L82 PathProgramCache]: Analyzing trace with hash -172599910, now seen corresponding path program 1 times [2021-04-28 20:48:06,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:48:06,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643612340] [2021-04-28 20:48:06,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:48:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:48:06,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:48:06,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:48:06,735 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 20:48:06,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643612340] [2021-04-28 20:48:06,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:48:06,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 20:48:06,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55483524] [2021-04-28 20:48:06,737 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 20:48:06,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:48:06,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 20:48:06,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 20:48:06,739 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 392 [2021-04-28 20:48:06,741 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 50 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 275.6666666666667) internal successors, (827), 3 states have internal predecessors, (827), 0 states have call successors, (0), 0 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 20:48:06,741 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:48:06,741 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 392 [2021-04-28 20:48:06,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:48:06,763 INFO L129 PetriNetUnfolder]: 10/87 cut-off events. [2021-04-28 20:48:06,763 INFO L130 PetriNetUnfolder]: For 26/32 co-relation queries the response was YES. [2021-04-28 20:48:06,764 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 87 events. 10/87 cut-off events. For 26/32 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 370 event pairs, 3 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 132. Up to 19 conditions per place. [2021-04-28 20:48:06,765 INFO L132 encePairwiseOnDemand]: 388/392 looper letters, 3 selfloop transitions, 3 changer transitions 0/52 dead transitions. [2021-04-28 20:48:06,765 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 52 transitions, 144 flow [2021-04-28 20:48:06,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 20:48:06,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 20:48:06,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 832 transitions. [2021-04-28 20:48:06,769 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7074829931972789 [2021-04-28 20:48:06,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 832 transitions. [2021-04-28 20:48:06,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 832 transitions. [2021-04-28 20:48:06,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:48:06,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 832 transitions. [2021-04-28 20:48:06,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 0 states have call successors, (0), 0 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 20:48:06,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 0 states have call successors, (0), 0 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 20:48:06,778 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 0 states have call successors, (0), 0 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 20:48:06,778 INFO L185 Difference]: Start difference. First operand has 62 places, 50 transitions, 128 flow. Second operand 3 states and 832 transitions. [2021-04-28 20:48:06,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 52 transitions, 144 flow [2021-04-28 20:48:06,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 52 transitions, 140 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 20:48:06,780 INFO L241 Difference]: Finished difference. Result has 63 places, 52 transitions, 143 flow [2021-04-28 20:48:06,781 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2021-04-28 20:48:06,781 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -89 predicate places. [2021-04-28 20:48:06,781 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:48:06,781 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 52 transitions, 143 flow [2021-04-28 20:48:06,782 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 52 transitions, 143 flow [2021-04-28 20:48:06,782 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 52 transitions, 143 flow [2021-04-28 20:48:06,794 INFO L129 PetriNetUnfolder]: 10/83 cut-off events. [2021-04-28 20:48:06,794 INFO L130 PetriNetUnfolder]: For 19/25 co-relation queries the response was YES. [2021-04-28 20:48:06,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 83 events. 10/83 cut-off events. For 19/25 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 383 event pairs, 3 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 130. Up to 19 conditions per place. [2021-04-28 20:48:06,797 INFO L146 LiptonReduction]: Number of co-enabled transitions 1610 [2021-04-28 20:48:06,807 INFO L158 LiptonReduction]: Checked pairs total: 680 [2021-04-28 20:48:06,807 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:48:06,807 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-04-28 20:48:06,809 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 143 flow [2021-04-28 20:48:06,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 275.6666666666667) internal successors, (827), 3 states have internal predecessors, (827), 0 states have call successors, (0), 0 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 20:48:06,810 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:48:06,810 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:48:06,810 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 20:48:06,810 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 20:48:06,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:48:06,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1062748932, now seen corresponding path program 1 times [2021-04-28 20:48:06,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:48:06,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104931863] [2021-04-28 20:48:06,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:48:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:48:06,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:48:06,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:48:06,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:48:06,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:48:06,910 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 20:48:06,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104931863] [2021-04-28 20:48:06,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:48:06,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 20:48:06,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628133006] [2021-04-28 20:48:06,911 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 20:48:06,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:48:06,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 20:48:06,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 20:48:06,917 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 392 [2021-04-28 20:48:06,922 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 143 flow. Second operand has 3 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 20:48:06,922 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:48:06,922 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 392 [2021-04-28 20:48:06,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:48:06,948 INFO L129 PetriNetUnfolder]: 4/87 cut-off events. [2021-04-28 20:48:06,948 INFO L130 PetriNetUnfolder]: For 47/82 co-relation queries the response was YES. [2021-04-28 20:48:06,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 87 events. 4/87 cut-off events. For 47/82 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 416 event pairs, 1 based on Foata normal form. 4/51 useless extension candidates. Maximal degree in co-relation 140. Up to 15 conditions per place. [2021-04-28 20:48:06,950 INFO L132 encePairwiseOnDemand]: 389/392 looper letters, 3 selfloop transitions, 3 changer transitions 0/52 dead transitions. [2021-04-28 20:48:06,950 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 52 transitions, 155 flow [2021-04-28 20:48:06,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 20:48:06,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 20:48:06,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 831 transitions. [2021-04-28 20:48:06,953 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7066326530612245 [2021-04-28 20:48:06,953 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 831 transitions. [2021-04-28 20:48:06,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 831 transitions. [2021-04-28 20:48:06,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:48:06,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 831 transitions. [2021-04-28 20:48:06,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 20:48:06,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 0 states have call successors, (0), 0 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 20:48:06,962 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 392.0) internal successors, (1568), 4 states have internal predecessors, (1568), 0 states have call successors, (0), 0 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 20:48:06,962 INFO L185 Difference]: Start difference. First operand has 63 places, 52 transitions, 143 flow. Second operand 3 states and 831 transitions. [2021-04-28 20:48:06,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 52 transitions, 155 flow [2021-04-28 20:48:06,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 52 transitions, 152 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 20:48:06,968 INFO L241 Difference]: Finished difference. Result has 65 places, 52 transitions, 151 flow [2021-04-28 20:48:06,969 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=151, PETRI_PLACES=65, PETRI_TRANSITIONS=52} [2021-04-28 20:48:06,969 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -87 predicate places. [2021-04-28 20:48:06,969 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:48:06,969 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 52 transitions, 151 flow [2021-04-28 20:48:06,970 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 52 transitions, 151 flow [2021-04-28 20:48:06,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 52 transitions, 151 flow [2021-04-28 20:48:06,983 INFO L129 PetriNetUnfolder]: 4/87 cut-off events. [2021-04-28 20:48:06,984 INFO L130 PetriNetUnfolder]: For 37/47 co-relation queries the response was YES. [2021-04-28 20:48:06,984 INFO L84 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 87 events. 4/87 cut-off events. For 37/47 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 434 event pairs, 1 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 138. Up to 15 conditions per place. [2021-04-28 20:48:06,987 INFO L146 LiptonReduction]: Number of co-enabled transitions 1608 [2021-04-28 20:48:07,031 INFO L158 LiptonReduction]: Checked pairs total: 680 [2021-04-28 20:48:07,032 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:48:07,032 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 63 [2021-04-28 20:48:07,034 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 52 transitions, 151 flow [2021-04-28 20:48:07,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 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 20:48:07,035 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:48:07,035 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:48:07,035 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 20:48:07,035 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 20:48:07,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:48:07,036 INFO L82 PathProgramCache]: Analyzing trace with hash 2005345823, now seen corresponding path program 1 times [2021-04-28 20:48:07,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:48:07,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906671353] [2021-04-28 20:48:07,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:48:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:48:07,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:48:07,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:48:07,125 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 20:48:07,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:48:07,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:48:07,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:48:07,136 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 20:48:07,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906671353] [2021-04-28 20:48:07,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:48:07,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 20:48:07,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116774396] [2021-04-28 20:48:07,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 20:48:07,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:48:07,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 20:48:07,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 20:48:07,140 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 392 [2021-04-28 20:48:07,142 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 52 transitions, 151 flow. Second operand has 4 states, 4 states have (on average 298.75) internal successors, (1195), 4 states have internal predecessors, (1195), 0 states have call successors, (0), 0 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 20:48:07,142 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:48:07,143 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 392 [2021-04-28 20:48:07,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:48:12,358 INFO L129 PetriNetUnfolder]: 26305/37368 cut-off events. [2021-04-28 20:48:12,358 INFO L130 PetriNetUnfolder]: For 2737/3007 co-relation queries the response was YES. [2021-04-28 20:48:12,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76195 conditions, 37368 events. 26305/37368 cut-off events. For 2737/3007 co-relation queries the response was YES. Maximal size of possible extension queue 6870. Compared 318493 event pairs, 15021 based on Foata normal form. 604/11670 useless extension candidates. Maximal degree in co-relation 76181. Up to 23635 conditions per place. [2021-04-28 20:48:12,652 INFO L132 encePairwiseOnDemand]: 372/392 looper letters, 31 selfloop transitions, 30 changer transitions 6/96 dead transitions. [2021-04-28 20:48:12,652 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 96 transitions, 373 flow [2021-04-28 20:48:12,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 20:48:12,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 20:48:12,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1556 transitions. [2021-04-28 20:48:12,658 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7938775510204081 [2021-04-28 20:48:12,658 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1556 transitions. [2021-04-28 20:48:12,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1556 transitions. [2021-04-28 20:48:12,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:48:12,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1556 transitions. [2021-04-28 20:48:12,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 311.2) internal successors, (1556), 5 states have internal predecessors, (1556), 0 states have call successors, (0), 0 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 20:48:12,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 392.0) internal successors, (2352), 6 states have internal predecessors, (2352), 0 states have call successors, (0), 0 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 20:48:12,671 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 392.0) internal successors, (2352), 6 states have internal predecessors, (2352), 0 states have call successors, (0), 0 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 20:48:12,671 INFO L185 Difference]: Start difference. First operand has 65 places, 52 transitions, 151 flow. Second operand 5 states and 1556 transitions. [2021-04-28 20:48:12,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 96 transitions, 373 flow [2021-04-28 20:48:12,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 96 transitions, 368 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 20:48:12,685 INFO L241 Difference]: Finished difference. Result has 71 places, 80 transitions, 374 flow [2021-04-28 20:48:12,685 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=374, PETRI_PLACES=71, PETRI_TRANSITIONS=80} [2021-04-28 20:48:12,686 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -81 predicate places. [2021-04-28 20:48:12,686 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:48:12,686 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 80 transitions, 374 flow [2021-04-28 20:48:12,686 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 80 transitions, 374 flow [2021-04-28 20:48:12,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 80 transitions, 374 flow [2021-04-28 20:48:15,754 INFO L129 PetriNetUnfolder]: 22828/32795 cut-off events. [2021-04-28 20:48:15,755 INFO L130 PetriNetUnfolder]: For 6753/7665 co-relation queries the response was YES. [2021-04-28 20:48:15,898 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94624 conditions, 32795 events. 22828/32795 cut-off events. For 6753/7665 co-relation queries the response was YES. Maximal size of possible extension queue 6108. Compared 281372 event pairs, 14138 based on Foata normal form. 1/9961 useless extension candidates. Maximal degree in co-relation 94608. Up to 31478 conditions per place. [2021-04-28 20:48:16,245 INFO L146 LiptonReduction]: Number of co-enabled transitions 2278 [2021-04-28 20:48:16,614 INFO L158 LiptonReduction]: Checked pairs total: 1290 [2021-04-28 20:48:16,614 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:48:16,614 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3928 [2021-04-28 20:48:16,616 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 80 transitions, 374 flow [2021-04-28 20:48:16,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 298.75) internal successors, (1195), 4 states have internal predecessors, (1195), 0 states have call successors, (0), 0 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 20:48:16,617 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:48:16,617 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:48:16,618 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 20:48:16,618 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 20:48:16,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:48:16,619 INFO L82 PathProgramCache]: Analyzing trace with hash 196203151, now seen corresponding path program 1 times [2021-04-28 20:48:16,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:48:16,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863320206] [2021-04-28 20:48:16,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:48:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:48:16,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:48:16,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:48:16,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:48:16,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:48:16,715 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 20:48:16,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 20:48:16,730 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 20:48:16,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863320206] [2021-04-28 20:48:16,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:48:16,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 20:48:16,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717281281] [2021-04-28 20:48:16,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 20:48:16,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:48:16,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 20:48:16,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 20:48:16,736 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 392 [2021-04-28 20:48:16,737 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 80 transitions, 374 flow. Second operand has 4 states, 4 states have (on average 242.25) internal successors, (969), 4 states have internal predecessors, (969), 0 states have call successors, (0), 0 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 20:48:16,737 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:48:16,737 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 392 [2021-04-28 20:48:16,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:48:29,268 INFO L129 PetriNetUnfolder]: 81664/123211 cut-off events. [2021-04-28 20:48:29,269 INFO L130 PetriNetUnfolder]: For 28492/124257 co-relation queries the response was YES. [2021-04-28 20:48:29,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 353014 conditions, 123211 events. 81664/123211 cut-off events. For 28492/124257 co-relation queries the response was YES. Maximal size of possible extension queue 17883. Compared 1230734 event pairs, 49214 based on Foata normal form. 555/37372 useless extension candidates. Maximal degree in co-relation 352996. Up to 117761 conditions per place. [2021-04-28 20:48:30,487 INFO L132 encePairwiseOnDemand]: 383/392 looper letters, 14 selfloop transitions, 14 changer transitions 0/95 dead transitions. [2021-04-28 20:48:30,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 95 transitions, 484 flow [2021-04-28 20:48:30,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 20:48:30,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 20:48:30,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 986 transitions. [2021-04-28 20:48:30,491 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6288265306122449 [2021-04-28 20:48:30,492 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 986 transitions. [2021-04-28 20:48:30,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 986 transitions. [2021-04-28 20:48:30,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:48:30,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 986 transitions. [2021-04-28 20:48:30,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 246.5) internal successors, (986), 4 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 20:48:30,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 392.0) internal successors, (1960), 5 states have internal predecessors, (1960), 0 states have call successors, (0), 0 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 20:48:30,500 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 392.0) internal successors, (1960), 5 states have internal predecessors, (1960), 0 states have call successors, (0), 0 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 20:48:30,500 INFO L185 Difference]: Start difference. First operand has 71 places, 80 transitions, 374 flow. Second operand 4 states and 986 transitions. [2021-04-28 20:48:30,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 95 transitions, 484 flow [2021-04-28 20:48:30,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 95 transitions, 484 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 20:48:30,822 INFO L241 Difference]: Finished difference. Result has 77 places, 90 transitions, 487 flow [2021-04-28 20:48:30,822 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=487, PETRI_PLACES=77, PETRI_TRANSITIONS=90} [2021-04-28 20:48:30,822 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -75 predicate places. [2021-04-28 20:48:30,822 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:48:30,822 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 90 transitions, 487 flow [2021-04-28 20:48:30,823 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 90 transitions, 487 flow [2021-04-28 20:48:30,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 90 transitions, 487 flow [2021-04-28 20:48:43,121 INFO L129 PetriNetUnfolder]: 87067/125472 cut-off events. [2021-04-28 20:48:43,121 INFO L130 PetriNetUnfolder]: For 25593/106684 co-relation queries the response was YES. [2021-04-28 20:48:43,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 360922 conditions, 125472 events. 87067/125472 cut-off events. For 25593/106684 co-relation queries the response was YES. Maximal size of possible extension queue 19466. Compared 1183242 event pairs, 46820 based on Foata normal form. 28/37286 useless extension candidates. Maximal degree in co-relation 360901. Up to 121025 conditions per place. [2021-04-28 20:48:45,103 INFO L146 LiptonReduction]: Number of co-enabled transitions 3038 [2021-04-28 20:48:50,055 INFO L158 LiptonReduction]: Checked pairs total: 841 [2021-04-28 20:48:50,055 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:48:50,055 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19233 [2021-04-28 20:48:50,057 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 90 transitions, 487 flow [2021-04-28 20:48:50,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 242.25) internal successors, (969), 4 states have internal predecessors, (969), 0 states have call successors, (0), 0 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 20:48:50,057 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:48:50,058 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:48:50,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 20:48:50,058 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 20:48:50,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:48:50,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1523405907, now seen corresponding path program 1 times [2021-04-28 20:48:50,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:48:50,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415208400] [2021-04-28 20:48:50,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:48:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:48:50,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:48:50,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:48:50,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:48:50,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:48:50,125 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 20:48:50,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:48:50,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:48:50,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:48:50,136 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 20:48:50,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415208400] [2021-04-28 20:48:50,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:48:50,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 20:48:50,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176145500] [2021-04-28 20:48:50,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 20:48:50,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:48:50,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 20:48:50,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 20:48:50,140 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 392 [2021-04-28 20:48:50,142 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 90 transitions, 487 flow. Second operand has 5 states, 5 states have (on average 298.8) internal successors, (1494), 5 states have internal predecessors, (1494), 0 states have call successors, (0), 0 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 20:48:50,142 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:48:50,142 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 392 [2021-04-28 20:48:50,142 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:49:09,342 INFO L129 PetriNetUnfolder]: 110756/165938 cut-off events. [2021-04-28 20:49:09,342 INFO L130 PetriNetUnfolder]: For 47444/816717 co-relation queries the response was YES. [2021-04-28 20:49:10,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 640511 conditions, 165938 events. 110756/165938 cut-off events. For 47444/816717 co-relation queries the response was YES. Maximal size of possible extension queue 26322. Compared 1662759 event pairs, 20704 based on Foata normal form. 2855/56285 useless extension candidates. Maximal degree in co-relation 640488. Up to 156995 conditions per place. [2021-04-28 20:49:10,752 INFO L132 encePairwiseOnDemand]: 372/392 looper letters, 35 selfloop transitions, 61 changer transitions 0/135 dead transitions. [2021-04-28 20:49:10,752 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 135 transitions, 928 flow [2021-04-28 20:49:10,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 20:49:10,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 20:49:10,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2179 transitions. [2021-04-28 20:49:10,760 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7940962099125365 [2021-04-28 20:49:10,760 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2179 transitions. [2021-04-28 20:49:10,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2179 transitions. [2021-04-28 20:49:10,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:49:10,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2179 transitions. [2021-04-28 20:49:10,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 311.2857142857143) internal successors, (2179), 7 states have internal predecessors, (2179), 0 states have call successors, (0), 0 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 20:49:10,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 392.0) internal successors, (3136), 8 states have internal predecessors, (3136), 0 states have call successors, (0), 0 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 20:49:10,775 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 392.0) internal successors, (3136), 8 states have internal predecessors, (3136), 0 states have call successors, (0), 0 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 20:49:10,775 INFO L185 Difference]: Start difference. First operand has 77 places, 90 transitions, 487 flow. Second operand 7 states and 2179 transitions. [2021-04-28 20:49:10,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 135 transitions, 928 flow [2021-04-28 20:49:11,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 135 transitions, 926 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-04-28 20:49:11,104 INFO L241 Difference]: Finished difference. Result has 86 places, 121 transitions, 918 flow [2021-04-28 20:49:11,104 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=918, PETRI_PLACES=86, PETRI_TRANSITIONS=121} [2021-04-28 20:49:11,104 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -66 predicate places. [2021-04-28 20:49:11,104 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:49:11,105 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 121 transitions, 918 flow [2021-04-28 20:49:11,105 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 121 transitions, 918 flow [2021-04-28 20:49:11,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 121 transitions, 918 flow [2021-04-28 20:49:29,248 INFO L129 PetriNetUnfolder]: 106285/158353 cut-off events. [2021-04-28 20:49:29,248 INFO L130 PetriNetUnfolder]: For 147982/767248 co-relation queries the response was YES. [2021-04-28 20:49:30,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 756656 conditions, 158353 events. 106285/158353 cut-off events. For 147982/767248 co-relation queries the response was YES. Maximal size of possible extension queue 26833. Compared 1602677 event pairs, 20492 based on Foata normal form. 61/48575 useless extension candidates. Maximal degree in co-relation 756630. Up to 153407 conditions per place. [2021-04-28 20:49:32,147 INFO L146 LiptonReduction]: Number of co-enabled transitions 4352 [2021-04-28 20:49:41,740 INFO L158 LiptonReduction]: Checked pairs total: 1682 [2021-04-28 20:49:41,740 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:49:41,740 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30636 [2021-04-28 20:49:41,741 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 121 transitions, 918 flow [2021-04-28 20:49:41,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 298.8) internal successors, (1494), 5 states have internal predecessors, (1494), 0 states have call successors, (0), 0 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 20:49:41,742 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:49:41,743 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:49:41,743 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 20:49:41,743 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 20:49:41,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:49:41,743 INFO L82 PathProgramCache]: Analyzing trace with hash -688130820, now seen corresponding path program 1 times [2021-04-28 20:49:41,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:49:41,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980362973] [2021-04-28 20:49:41,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:49:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:49:41,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:49:41,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:49:41,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:49:41,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:49:41,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:49:41,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:49:41,845 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 20:49:41,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:49:41,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:49:41,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:49:41,857 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 20:49:41,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980362973] [2021-04-28 20:49:41,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:49:41,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 20:49:41,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656091602] [2021-04-28 20:49:41,858 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 20:49:41,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:49:41,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 20:49:41,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 20:49:41,861 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 392 [2021-04-28 20:49:41,863 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 121 transitions, 918 flow. Second operand has 6 states, 6 states have (on average 298.8333333333333) internal successors, (1793), 6 states have internal predecessors, (1793), 0 states have call successors, (0), 0 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 20:49:41,863 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:49:41,864 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 392 [2021-04-28 20:49:41,864 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:50:03,762 INFO L129 PetriNetUnfolder]: 105455/166838 cut-off events. [2021-04-28 20:50:03,762 INFO L130 PetriNetUnfolder]: For 155054/2259865 co-relation queries the response was YES. [2021-04-28 20:50:04,590 INFO L84 FinitePrefix]: Finished finitePrefix Result has 953959 conditions, 166838 events. 105455/166838 cut-off events. For 155054/2259865 co-relation queries the response was YES. Maximal size of possible extension queue 28137. Compared 1816257 event pairs, 3262 based on Foata normal form. 3008/56420 useless extension candidates. Maximal degree in co-relation 953931. Up to 158984 conditions per place. [2021-04-28 20:50:05,097 INFO L132 encePairwiseOnDemand]: 372/392 looper letters, 24 selfloop transitions, 92 changer transitions 12/167 dead transitions. [2021-04-28 20:50:05,097 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 167 transitions, 1584 flow [2021-04-28 20:50:05,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 20:50:05,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 20:50:05,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2805 transitions. [2021-04-28 20:50:05,105 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7950680272108843 [2021-04-28 20:50:05,105 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2805 transitions. [2021-04-28 20:50:05,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2805 transitions. [2021-04-28 20:50:05,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:50:05,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2805 transitions. [2021-04-28 20:50:05,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 311.6666666666667) internal successors, (2805), 9 states have internal predecessors, (2805), 0 states have call successors, (0), 0 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 20:50:05,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 392.0) internal successors, (3920), 10 states have internal predecessors, (3920), 0 states have call successors, (0), 0 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 20:50:05,126 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 392.0) internal successors, (3920), 10 states have internal predecessors, (3920), 0 states have call successors, (0), 0 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 20:50:05,126 INFO L185 Difference]: Start difference. First operand has 86 places, 121 transitions, 918 flow. Second operand 9 states and 2805 transitions. [2021-04-28 20:50:05,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 167 transitions, 1584 flow [2021-04-28 20:50:39,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 167 transitions, 1424 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 20:50:39,801 INFO L241 Difference]: Finished difference. Result has 94 places, 152 transitions, 1343 flow [2021-04-28 20:50:39,801 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=759, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1343, PETRI_PLACES=94, PETRI_TRANSITIONS=152} [2021-04-28 20:50:39,801 INFO L343 CegarLoopForPetriNet]: 152 programPoint places, -58 predicate places. [2021-04-28 20:50:39,801 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:50:39,802 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 152 transitions, 1343 flow [2021-04-28 20:50:39,802 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 152 transitions, 1343 flow [2021-04-28 20:50:39,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 152 transitions, 1343 flow [2021-04-28 20:50:55,570 INFO L129 PetriNetUnfolder]: 74929/125841 cut-off events. [2021-04-28 20:50:55,570 INFO L130 PetriNetUnfolder]: For 321364/643329 co-relation queries the response was YES. [2021-04-28 20:50:56,792 INFO L84 FinitePrefix]: Finished finitePrefix Result has 752746 conditions, 125841 events. 74929/125841 cut-off events. For 321364/643329 co-relation queries the response was YES. Maximal size of possible extension queue 25892. Compared 1486033 event pairs, 3266 based on Foata normal form. 7/38361 useless extension candidates. Maximal degree in co-relation 752717. Up to 104374 conditions per place. [2021-04-28 20:50:58,307 INFO L146 LiptonReduction]: Number of co-enabled transitions 5060 [2021-04-28 20:51:42,117 INFO L158 LiptonReduction]: Checked pairs total: 2598 [2021-04-28 20:51:42,118 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:51:42,118 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 62317 [2021-04-28 20:51:42,119 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 152 transitions, 1343 flow [2021-04-28 20:51:42,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 298.8333333333333) internal successors, (1793), 6 states have internal predecessors, (1793), 0 states have call successors, (0), 0 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 20:51:42,120 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:51:42,120 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:51:42,120 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 20:51:42,120 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 20:51:42,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:51:42,121 INFO L82 PathProgramCache]: Analyzing trace with hash -212812455, now seen corresponding path program 1 times [2021-04-28 20:51:42,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:51:42,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142917551] [2021-04-28 20:51:42,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:51:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:51:42,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:51:42,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:51:42,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:51:42,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:51:42,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:51:42,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:51:42,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:51:42,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:51:42,241 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 20:51:42,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:51:42,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:51:42,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:51:42,253 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 20:51:42,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142917551] [2021-04-28 20:51:42,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:51:42,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 20:51:42,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047019642] [2021-04-28 20:51:42,254 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 20:51:42,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:51:42,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 20:51:42,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 20:51:42,257 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 392 [2021-04-28 20:51:42,260 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 152 transitions, 1343 flow. Second operand has 7 states, 7 states have (on average 298.85714285714283) internal successors, (2092), 7 states have internal predecessors, (2092), 0 states have call successors, (0), 0 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 20:51:42,260 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:51:42,260 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 392 [2021-04-28 20:51:42,260 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:52:03,904 INFO L129 PetriNetUnfolder]: 72893/126959 cut-off events. [2021-04-28 20:52:03,904 INFO L130 PetriNetUnfolder]: For 330205/1993862 co-relation queries the response was YES. [2021-04-28 20:52:04,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 873046 conditions, 126959 events. 72893/126959 cut-off events. For 330205/1993862 co-relation queries the response was YES. Maximal size of possible extension queue 25140. Compared 1543523 event pairs, 22 based on Foata normal form. 2115/41730 useless extension candidates. Maximal degree in co-relation 873015. Up to 102349 conditions per place. [2021-04-28 20:52:05,062 INFO L132 encePairwiseOnDemand]: 372/392 looper letters, 6 selfloop transitions, 110 changer transitions 25/175 dead transitions. [2021-04-28 20:52:05,062 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 175 transitions, 1825 flow [2021-04-28 20:52:05,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 20:52:05,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 20:52:05,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3407 transitions. [2021-04-28 20:52:05,076 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7901205936920223 [2021-04-28 20:52:05,076 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3407 transitions. [2021-04-28 20:52:05,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3407 transitions. [2021-04-28 20:52:05,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:52:05,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3407 transitions. [2021-04-28 20:52:05,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 309.72727272727275) internal successors, (3407), 11 states have internal predecessors, (3407), 0 states have call successors, (0), 0 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 20:52:05,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 392.0) internal successors, (4704), 12 states have internal predecessors, (4704), 0 states have call successors, (0), 0 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 20:52:05,113 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 392.0) internal successors, (4704), 12 states have internal predecessors, (4704), 0 states have call successors, (0), 0 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 20:52:05,113 INFO L185 Difference]: Start difference. First operand has 94 places, 152 transitions, 1343 flow. Second operand 11 states and 3407 transitions. [2021-04-28 20:52:05,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 175 transitions, 1825 flow