/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix053_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 04:49:25,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 04:49:25,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 04:49:25,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 04:49:25,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 04:49:25,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 04:49:25,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 04:49:25,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 04:49:25,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 04:49:25,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 04:49:25,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 04:49:25,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 04:49:25,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 04:49:25,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 04:49:25,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 04:49:25,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 04:49:25,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 04:49:25,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 04:49:25,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 04:49:25,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 04:49:25,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 04:49:25,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 04:49:25,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 04:49:25,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 04:49:25,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 04:49:25,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 04:49:25,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 04:49:25,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 04:49:25,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 04:49:25,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 04:49:25,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 04:49:25,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 04:49:25,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 04:49:25,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 04:49:25,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 04:49:25,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 04:49:25,118 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-RepeatedVariableLbe.epf [2021-03-25 04:49:25,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 04:49:25,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 04:49:25,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 04:49:25,146 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 04:49:25,146 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 04:49:25,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 04:49:25,146 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 04:49:25,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 04:49:25,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 04:49:25,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 04:49:25,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 04:49:25,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 04:49:25,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 04:49:25,147 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 04:49:25,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 04:49:25,147 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 04:49:25,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 04:49:25,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 04:49:25,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 04:49:25,148 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 04:49:25,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 04:49:25,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:49:25,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 04:49:25,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 04:49:25,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 04:49:25,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 04:49:25,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 04:49:25,149 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 04:49:25,149 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 04:49:25,149 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 04:49:25,149 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 04:49:25,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 04:49:25,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 04:49:25,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 04:49:25,466 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 04:49:25,466 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 04:49:25,468 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix053_tso.oepc.i [2021-03-25 04:49:25,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/addb90864/ff9e6000f66e4c588a317f6b95869ae5/FLAG215f01227 [2021-03-25 04:49:26,068 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 04:49:26,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix053_tso.oepc.i [2021-03-25 04:49:26,086 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/addb90864/ff9e6000f66e4c588a317f6b95869ae5/FLAG215f01227 [2021-03-25 04:49:26,546 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/addb90864/ff9e6000f66e4c588a317f6b95869ae5 [2021-03-25 04:49:26,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 04:49:26,549 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 04:49:26,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 04:49:26,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 04:49:26,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 04:49:26,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:49:26" (1/1) ... [2021-03-25 04:49:26,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7670e551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:49:26, skipping insertion in model container [2021-03-25 04:49:26,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:49:26" (1/1) ... [2021-03-25 04:49:26,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 04:49:26,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 04:49:26,806 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/mix053_tso.oepc.i[949,962] [2021-03-25 04:49:27,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:49:27,025 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 04:49:27,036 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/mix053_tso.oepc.i[949,962] [2021-03-25 04:49:27,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:49:27,166 INFO L208 MainTranslator]: Completed translation [2021-03-25 04:49:27,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:49:27 WrapperNode [2021-03-25 04:49:27,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 04:49:27,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 04:49:27,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 04:49:27,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 04:49:27,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:49:27" (1/1) ... [2021-03-25 04:49:27,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:49:27" (1/1) ... [2021-03-25 04:49:27,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 04:49:27,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 04:49:27,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 04:49:27,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 04:49:27,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:49:27" (1/1) ... [2021-03-25 04:49:27,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:49:27" (1/1) ... [2021-03-25 04:49:27,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:49:27" (1/1) ... [2021-03-25 04:49:27,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:49:27" (1/1) ... [2021-03-25 04:49:27,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:49:27" (1/1) ... [2021-03-25 04:49:27,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:49:27" (1/1) ... [2021-03-25 04:49:27,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:49:27" (1/1) ... [2021-03-25 04:49:27,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 04:49:27,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 04:49:27,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 04:49:27,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 04:49:27,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:49:27" (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 [2021-03-25 04:49:27,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 04:49:27,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 04:49:27,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 04:49:27,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 04:49:27,349 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 04:49:27,349 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 04:49:27,350 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 04:49:27,350 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 04:49:27,350 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 04:49:27,350 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 04:49:27,351 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 04:49:27,351 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 04:49:27,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 04:49:27,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 04:49:27,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 04:49:27,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 04:49:27,353 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 04:49:28,960 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 04:49:28,961 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 04:49:28,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:49:28 BoogieIcfgContainer [2021-03-25 04:49:28,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 04:49:28,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 04:49:28,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 04:49:28,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 04:49:28,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 04:49:26" (1/3) ... [2021-03-25 04:49:28,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6379350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:49:28, skipping insertion in model container [2021-03-25 04:49:28,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:49:27" (2/3) ... [2021-03-25 04:49:28,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6379350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:49:28, skipping insertion in model container [2021-03-25 04:49:28,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:49:28" (3/3) ... [2021-03-25 04:49:28,969 INFO L111 eAbstractionObserver]: Analyzing ICFG mix053_tso.oepc.i [2021-03-25 04:49:28,974 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 04:49:28,977 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 04:49:28,978 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 04:49:29,013 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,013 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,014 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,014 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,014 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,014 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,014 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,014 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,014 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,014 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,015 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,015 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,015 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,015 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,015 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,015 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,015 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,016 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,016 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,016 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,016 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,017 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,017 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,017 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,017 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,017 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,017 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,017 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,018 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,018 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,018 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,018 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,018 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,019 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,019 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,019 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,019 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,019 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,020 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,020 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,020 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,020 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,020 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,020 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,020 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,020 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,021 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,021 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,021 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,021 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,021 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,022 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,023 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,024 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,025 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,025 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,025 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,025 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,026 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,026 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,026 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,026 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,026 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,026 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,026 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,026 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,027 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,027 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,027 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,027 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,027 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,027 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,027 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,028 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,028 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,028 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,028 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,028 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,028 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,029 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,030 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,031 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,031 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,031 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,031 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,031 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,031 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,031 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,032 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,032 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,033 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,033 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,033 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,034 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,034 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,034 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,034 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,034 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,034 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,034 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,035 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,035 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,035 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,036 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,037 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,037 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,037 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,037 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,037 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,037 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,037 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,037 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:49:29,039 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:49:29,054 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-25 04:49:29,070 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:49:29,070 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:49:29,070 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:49:29,070 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:49:29,070 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:49:29,071 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:49:29,071 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:49:29,071 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:49:29,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 125 places, 114 transitions, 248 flow [2021-03-25 04:49:29,113 INFO L129 PetriNetUnfolder]: 2/110 cut-off events. [2021-03-25 04:49:29,113 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:49:29,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 110 events. 2/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2021-03-25 04:49:29,117 INFO L82 GeneralOperation]: Start removeDead. Operand has 125 places, 114 transitions, 248 flow [2021-03-25 04:49:29,121 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 110 transitions, 232 flow [2021-03-25 04:49:29,122 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:49:29,129 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 110 transitions, 232 flow [2021-03-25 04:49:29,131 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 110 transitions, 232 flow [2021-03-25 04:49:29,133 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 121 places, 110 transitions, 232 flow [2021-03-25 04:49:29,150 INFO L129 PetriNetUnfolder]: 2/110 cut-off events. [2021-03-25 04:49:29,151 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:49:29,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 110 events. 2/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2021-03-25 04:49:29,154 INFO L142 LiptonReduction]: Number of co-enabled transitions 2530 [2021-03-25 04:49:30,793 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-03-25 04:49:31,096 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-25 04:49:32,398 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 312 DAG size of output: 267 [2021-03-25 04:49:33,001 WARN L205 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-03-25 04:49:33,240 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:49:33,662 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-25 04:49:33,771 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-25 04:49:34,639 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-25 04:49:34,924 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-25 04:49:35,474 WARN L205 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-03-25 04:49:36,098 WARN L205 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-03-25 04:49:36,788 INFO L154 LiptonReduction]: Checked pairs total: 4698 [2021-03-25 04:49:36,788 INFO L156 LiptonReduction]: Total number of compositions: 76 [2021-03-25 04:49:36,790 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7669 [2021-03-25 04:49:36,802 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-25 04:49:36,802 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:49:36,802 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:49:36,802 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:49:36,803 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:49:36,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:49:36,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1108116867, now seen corresponding path program 1 times [2021-03-25 04:49:36,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:49:36,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228189167] [2021-03-25 04:49:36,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:49:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:49:37,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:37,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:49:37,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:37,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:49:37,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:49:37,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228189167] [2021-03-25 04:49:37,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:49:37,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:49:37,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9095428] [2021-03-25 04:49:37,041 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:49:37,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:49:37,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:49:37,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:49:37,053 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 190 [2021-03-25 04:49:37,056 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:37,056 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:49:37,056 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 190 [2021-03-25 04:49:37,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:49:37,138 INFO L129 PetriNetUnfolder]: 69/201 cut-off events. [2021-03-25 04:49:37,138 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:49:37,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 201 events. 69/201 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 942 event pairs, 39 based on Foata normal form. 11/195 useless extension candidates. Maximal degree in co-relation 314. Up to 89 conditions per place. [2021-03-25 04:49:37,141 INFO L132 encePairwiseOnDemand]: 186/190 looper letters, 9 selfloop transitions, 2 changer transitions 5/44 dead transitions. [2021-03-25 04:49:37,141 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 44 transitions, 126 flow [2021-03-25 04:49:37,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:49:37,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:49:37,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 517 transitions. [2021-03-25 04:49:37,153 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9070175438596492 [2021-03-25 04:49:37,154 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 517 transitions. [2021-03-25 04:49:37,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 517 transitions. [2021-03-25 04:49:37,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:49:37,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 517 transitions. [2021-03-25 04:49:37,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:37,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:37,167 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:37,168 INFO L185 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 3 states and 517 transitions. [2021-03-25 04:49:37,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 44 transitions, 126 flow [2021-03-25 04:49:37,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 44 transitions, 122 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 04:49:37,172 INFO L241 Difference]: Finished difference. Result has 50 places, 35 transitions, 82 flow [2021-03-25 04:49:37,174 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=50, PETRI_TRANSITIONS=35} [2021-03-25 04:49:37,174 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -4 predicate places. [2021-03-25 04:49:37,174 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:49:37,174 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 35 transitions, 82 flow [2021-03-25 04:49:37,175 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 35 transitions, 82 flow [2021-03-25 04:49:37,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 35 transitions, 82 flow [2021-03-25 04:49:37,180 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-03-25 04:49:37,180 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:49:37,180 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 35 events. 0/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 45 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 04:49:37,181 INFO L142 LiptonReduction]: Number of co-enabled transitions 402 [2021-03-25 04:49:37,845 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:49:38,131 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:49:38,687 WARN L205 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-25 04:49:39,261 WARN L205 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-25 04:49:40,023 INFO L154 LiptonReduction]: Checked pairs total: 1868 [2021-03-25 04:49:40,023 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-25 04:49:40,023 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2849 [2021-03-25 04:49:40,024 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 68 flow [2021-03-25 04:49:40,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:40,025 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:49:40,025 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:49:40,025 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 04:49:40,025 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:49:40,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:49:40,026 INFO L82 PathProgramCache]: Analyzing trace with hash -2003638396, now seen corresponding path program 1 times [2021-03-25 04:49:40,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:49:40,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005516767] [2021-03-25 04:49:40,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:49:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:49:40,212 INFO L142 QuantifierPusher]: treesize reduction 10, result has 44.4 percent of original size [2021-03-25 04:49:40,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-03-25 04:49:40,217 INFO L142 QuantifierPusher]: treesize reduction 10, result has 52.4 percent of original size [2021-03-25 04:49:40,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 04:49:40,225 INFO L142 QuantifierPusher]: treesize reduction 10, result has 58.3 percent of original size [2021-03-25 04:49:40,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 04:49:40,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:40,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-25 04:49:40,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:40,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:49:40,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:49:40,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005516767] [2021-03-25 04:49:40,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:49:40,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:49:40,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321416799] [2021-03-25 04:49:40,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:49:40,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:49:40,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:49:40,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:49:40,246 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 197 [2021-03-25 04:49:40,247 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 68 flow. Second operand has 6 states, 6 states have (on average 152.0) internal successors, (912), 6 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:40,247 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:49:40,247 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 197 [2021-03-25 04:49:40,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:49:40,339 INFO L129 PetriNetUnfolder]: 70/154 cut-off events. [2021-03-25 04:49:40,339 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-25 04:49:40,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 154 events. 70/154 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 601 event pairs, 21 based on Foata normal form. 4/150 useless extension candidates. Maximal degree in co-relation 292. Up to 108 conditions per place. [2021-03-25 04:49:40,341 INFO L132 encePairwiseOnDemand]: 190/197 looper letters, 11 selfloop transitions, 8 changer transitions 0/38 dead transitions. [2021-03-25 04:49:40,341 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 38 transitions, 128 flow [2021-03-25 04:49:40,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:49:40,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:49:40,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 625 transitions. [2021-03-25 04:49:40,345 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7931472081218274 [2021-03-25 04:49:40,345 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 625 transitions. [2021-03-25 04:49:40,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 625 transitions. [2021-03-25 04:49:40,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:49:40,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 625 transitions. [2021-03-25 04:49:40,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 156.25) internal successors, (625), 4 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:40,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:40,350 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:40,350 INFO L185 Difference]: Start difference. First operand has 39 places, 28 transitions, 68 flow. Second operand 4 states and 625 transitions. [2021-03-25 04:49:40,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 38 transitions, 128 flow [2021-03-25 04:49:40,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 38 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:49:40,351 INFO L241 Difference]: Finished difference. Result has 42 places, 34 transitions, 114 flow [2021-03-25 04:49:40,351 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=114, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2021-03-25 04:49:40,352 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -12 predicate places. [2021-03-25 04:49:40,352 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:49:40,352 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 34 transitions, 114 flow [2021-03-25 04:49:40,352 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 34 transitions, 114 flow [2021-03-25 04:49:40,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 34 transitions, 114 flow [2021-03-25 04:49:40,361 INFO L129 PetriNetUnfolder]: 10/57 cut-off events. [2021-03-25 04:49:40,361 INFO L130 PetriNetUnfolder]: For 8/10 co-relation queries the response was YES. [2021-03-25 04:49:40,362 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 57 events. 10/57 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 181 event pairs, 2 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 100. Up to 16 conditions per place. [2021-03-25 04:49:40,363 INFO L142 LiptonReduction]: Number of co-enabled transitions 490 [2021-03-25 04:49:40,669 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-03-25 04:49:40,790 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-03-25 04:49:41,055 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-03-25 04:49:41,183 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-03-25 04:49:41,188 INFO L154 LiptonReduction]: Checked pairs total: 780 [2021-03-25 04:49:41,188 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:49:41,188 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 836 [2021-03-25 04:49:41,189 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 110 flow [2021-03-25 04:49:41,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 152.0) internal successors, (912), 6 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:41,189 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:49:41,189 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:49:41,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 04:49:41,190 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:49:41,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:49:41,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1814393995, now seen corresponding path program 1 times [2021-03-25 04:49:41,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:49:41,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314882620] [2021-03-25 04:49:41,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:49:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:49:41,375 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.7 percent of original size [2021-03-25 04:49:41,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-25 04:49:41,403 INFO L142 QuantifierPusher]: treesize reduction 2, result has 97.1 percent of original size [2021-03-25 04:49:41,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-25 04:49:41,439 INFO L142 QuantifierPusher]: treesize reduction 2, result has 97.3 percent of original size [2021-03-25 04:49:41,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-25 04:49:41,481 INFO L142 QuantifierPusher]: treesize reduction 2, result has 97.3 percent of original size [2021-03-25 04:49:41,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-25 04:49:41,523 INFO L142 QuantifierPusher]: treesize reduction 8, result has 63.6 percent of original size [2021-03-25 04:49:41,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 04:49:41,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:49:41,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314882620] [2021-03-25 04:49:41,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:49:41,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:49:41,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625058227] [2021-03-25 04:49:41,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:49:41,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:49:41,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:49:41,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:49:41,540 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 198 [2021-03-25 04:49:41,541 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 110 flow. Second operand has 7 states, 7 states have (on average 150.85714285714286) internal successors, (1056), 7 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:41,541 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:49:41,541 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 198 [2021-03-25 04:49:41,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:49:41,666 INFO L129 PetriNetUnfolder]: 66/154 cut-off events. [2021-03-25 04:49:41,666 INFO L130 PetriNetUnfolder]: For 73/101 co-relation queries the response was YES. [2021-03-25 04:49:41,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 154 events. 66/154 cut-off events. For 73/101 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 619 event pairs, 18 based on Foata normal form. 9/158 useless extension candidates. Maximal degree in co-relation 380. Up to 90 conditions per place. [2021-03-25 04:49:41,668 INFO L132 encePairwiseOnDemand]: 192/198 looper letters, 14 selfloop transitions, 9 changer transitions 0/42 dead transitions. [2021-03-25 04:49:41,668 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 42 transitions, 189 flow [2021-03-25 04:49:41,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:49:41,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:49:41,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 768 transitions. [2021-03-25 04:49:41,671 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7757575757575758 [2021-03-25 04:49:41,671 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 768 transitions. [2021-03-25 04:49:41,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 768 transitions. [2021-03-25 04:49:41,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:49:41,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 768 transitions. [2021-03-25 04:49:41,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 153.6) internal successors, (768), 5 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:41,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:41,676 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:41,676 INFO L185 Difference]: Start difference. First operand has 41 places, 33 transitions, 110 flow. Second operand 5 states and 768 transitions. [2021-03-25 04:49:41,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 42 transitions, 189 flow [2021-03-25 04:49:41,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 187 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-03-25 04:49:41,678 INFO L241 Difference]: Finished difference. Result has 47 places, 38 transitions, 170 flow [2021-03-25 04:49:41,678 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=170, PETRI_PLACES=47, PETRI_TRANSITIONS=38} [2021-03-25 04:49:41,678 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -7 predicate places. [2021-03-25 04:49:41,679 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:49:41,679 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 38 transitions, 170 flow [2021-03-25 04:49:41,679 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 38 transitions, 170 flow [2021-03-25 04:49:41,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 38 transitions, 170 flow [2021-03-25 04:49:41,717 INFO L129 PetriNetUnfolder]: 22/81 cut-off events. [2021-03-25 04:49:41,717 INFO L130 PetriNetUnfolder]: For 87/98 co-relation queries the response was YES. [2021-03-25 04:49:41,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 81 events. 22/81 cut-off events. For 87/98 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 300 event pairs, 6 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 208. Up to 26 conditions per place. [2021-03-25 04:49:41,719 INFO L142 LiptonReduction]: Number of co-enabled transitions 562 [2021-03-25 04:49:41,722 INFO L154 LiptonReduction]: Checked pairs total: 472 [2021-03-25 04:49:41,722 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:49:41,722 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-03-25 04:49:41,723 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 170 flow [2021-03-25 04:49:41,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 150.85714285714286) internal successors, (1056), 7 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:41,724 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:49:41,724 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:49:41,724 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 04:49:41,724 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:49:41,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:49:41,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1138896125, now seen corresponding path program 1 times [2021-03-25 04:49:41,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:49:41,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264307816] [2021-03-25 04:49:41,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:49:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:49:41,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:41,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:49:41,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:49:41,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264307816] [2021-03-25 04:49:41,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:49:41,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:49:41,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521461390] [2021-03-25 04:49:41,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:49:41,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:49:41,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:49:41,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:49:41,850 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 198 [2021-03-25 04:49:41,851 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:41,851 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:49:41,851 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 198 [2021-03-25 04:49:41,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:49:41,890 INFO L129 PetriNetUnfolder]: 39/145 cut-off events. [2021-03-25 04:49:41,890 INFO L130 PetriNetUnfolder]: For 264/330 co-relation queries the response was YES. [2021-03-25 04:49:41,891 INFO L84 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 145 events. 39/145 cut-off events. For 264/330 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 711 event pairs, 8 based on Foata normal form. 2/133 useless extension candidates. Maximal degree in co-relation 383. Up to 44 conditions per place. [2021-03-25 04:49:41,892 INFO L132 encePairwiseOnDemand]: 194/198 looper letters, 3 selfloop transitions, 3 changer transitions 0/40 dead transitions. [2021-03-25 04:49:41,892 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 40 transitions, 186 flow [2021-03-25 04:49:41,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:49:41,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:49:41,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2021-03-25 04:49:41,895 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8855218855218855 [2021-03-25 04:49:41,895 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 526 transitions. [2021-03-25 04:49:41,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 526 transitions. [2021-03-25 04:49:41,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:49:41,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 526 transitions. [2021-03-25 04:49:41,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:41,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:41,898 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:41,898 INFO L185 Difference]: Start difference. First operand has 47 places, 38 transitions, 170 flow. Second operand 3 states and 526 transitions. [2021-03-25 04:49:41,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 40 transitions, 186 flow [2021-03-25 04:49:41,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 40 transitions, 185 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:49:41,903 INFO L241 Difference]: Finished difference. Result has 49 places, 40 transitions, 188 flow [2021-03-25 04:49:41,903 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2021-03-25 04:49:41,903 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -5 predicate places. [2021-03-25 04:49:41,904 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:49:41,904 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 40 transitions, 188 flow [2021-03-25 04:49:41,904 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 40 transitions, 188 flow [2021-03-25 04:49:41,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 40 transitions, 188 flow [2021-03-25 04:49:41,932 INFO L129 PetriNetUnfolder]: 39/119 cut-off events. [2021-03-25 04:49:41,933 INFO L130 PetriNetUnfolder]: For 299/334 co-relation queries the response was YES. [2021-03-25 04:49:41,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 119 events. 39/119 cut-off events. For 299/334 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 543 event pairs, 14 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 356. Up to 44 conditions per place. [2021-03-25 04:49:41,935 INFO L142 LiptonReduction]: Number of co-enabled transitions 632 [2021-03-25 04:49:41,940 INFO L154 LiptonReduction]: Checked pairs total: 374 [2021-03-25 04:49:41,940 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:49:41,940 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-03-25 04:49:41,941 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 188 flow [2021-03-25 04:49:41,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:41,941 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:49:41,941 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:49:41,942 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 04:49:41,942 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:49:41,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:49:41,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1288098009, now seen corresponding path program 1 times [2021-03-25 04:49:41,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:49:41,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125378484] [2021-03-25 04:49:41,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:49:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:49:42,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:42,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:49:42,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:42,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:49:42,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:42,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:49:42,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:42,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:49:42,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:42,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:49:42,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:49:42,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125378484] [2021-03-25 04:49:42,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:49:42,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:49:42,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153409002] [2021-03-25 04:49:42,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:49:42,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:49:42,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:49:42,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:49:42,107 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 198 [2021-03-25 04:49:42,108 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 158.0) internal successors, (948), 6 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:42,109 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:49:42,109 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 198 [2021-03-25 04:49:42,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:49:42,271 INFO L129 PetriNetUnfolder]: 209/469 cut-off events. [2021-03-25 04:49:42,272 INFO L130 PetriNetUnfolder]: For 728/836 co-relation queries the response was YES. [2021-03-25 04:49:42,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1511 conditions, 469 events. 209/469 cut-off events. For 728/836 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2631 event pairs, 30 based on Foata normal form. 10/453 useless extension candidates. Maximal degree in co-relation 1494. Up to 256 conditions per place. [2021-03-25 04:49:42,277 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 23 selfloop transitions, 17 changer transitions 0/61 dead transitions. [2021-03-25 04:49:42,278 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 61 transitions, 391 flow [2021-03-25 04:49:42,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:49:42,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:49:42,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 804 transitions. [2021-03-25 04:49:42,283 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8121212121212121 [2021-03-25 04:49:42,283 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 804 transitions. [2021-03-25 04:49:42,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 804 transitions. [2021-03-25 04:49:42,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:49:42,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 804 transitions. [2021-03-25 04:49:42,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 160.8) internal successors, (804), 5 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:42,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:42,288 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:42,288 INFO L185 Difference]: Start difference. First operand has 49 places, 40 transitions, 188 flow. Second operand 5 states and 804 transitions. [2021-03-25 04:49:42,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 61 transitions, 391 flow [2021-03-25 04:49:42,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 61 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:49:42,294 INFO L241 Difference]: Finished difference. Result has 54 places, 54 transitions, 342 flow [2021-03-25 04:49:42,294 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=342, PETRI_PLACES=54, PETRI_TRANSITIONS=54} [2021-03-25 04:49:42,294 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 0 predicate places. [2021-03-25 04:49:42,294 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:49:42,294 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 54 transitions, 342 flow [2021-03-25 04:49:42,294 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 54 transitions, 342 flow [2021-03-25 04:49:42,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 54 transitions, 342 flow [2021-03-25 04:49:42,348 INFO L129 PetriNetUnfolder]: 177/425 cut-off events. [2021-03-25 04:49:42,348 INFO L130 PetriNetUnfolder]: For 1114/1184 co-relation queries the response was YES. [2021-03-25 04:49:42,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1506 conditions, 425 events. 177/425 cut-off events. For 1114/1184 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2577 event pairs, 24 based on Foata normal form. 8/398 useless extension candidates. Maximal degree in co-relation 1488. Up to 156 conditions per place. [2021-03-25 04:49:42,355 INFO L142 LiptonReduction]: Number of co-enabled transitions 832 [2021-03-25 04:49:42,433 INFO L154 LiptonReduction]: Checked pairs total: 689 [2021-03-25 04:49:42,433 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:49:42,433 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 139 [2021-03-25 04:49:42,434 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 54 transitions, 342 flow [2021-03-25 04:49:42,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 158.0) internal successors, (948), 6 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:42,434 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:49:42,434 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:49:42,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 04:49:42,435 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:49:42,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:49:42,442 INFO L82 PathProgramCache]: Analyzing trace with hash -362863747, now seen corresponding path program 2 times [2021-03-25 04:49:42,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:49:42,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177628031] [2021-03-25 04:49:42,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:49:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:49:42,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:42,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:49:42,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:42,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:49:42,526 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-03-25 04:49:42,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 04:49:42,545 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-03-25 04:49:42,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 04:49:42,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:42,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:49:42,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:49:42,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177628031] [2021-03-25 04:49:42,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:49:42,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:49:42,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031146719] [2021-03-25 04:49:42,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:49:42,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:49:42,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:49:42,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:49:42,578 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 198 [2021-03-25 04:49:42,579 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 54 transitions, 342 flow. Second operand has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:42,579 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:49:42,579 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 198 [2021-03-25 04:49:42,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:49:42,741 INFO L129 PetriNetUnfolder]: 198/486 cut-off events. [2021-03-25 04:49:42,742 INFO L130 PetriNetUnfolder]: For 1472/1778 co-relation queries the response was YES. [2021-03-25 04:49:42,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1882 conditions, 486 events. 198/486 cut-off events. For 1472/1778 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3020 event pairs, 16 based on Foata normal form. 58/521 useless extension candidates. Maximal degree in co-relation 1862. Up to 179 conditions per place. [2021-03-25 04:49:42,748 INFO L132 encePairwiseOnDemand]: 192/198 looper letters, 22 selfloop transitions, 23 changer transitions 0/66 dead transitions. [2021-03-25 04:49:42,748 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 66 transitions, 494 flow [2021-03-25 04:49:42,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:49:42,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:49:42,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 908 transitions. [2021-03-25 04:49:42,751 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7643097643097643 [2021-03-25 04:49:42,751 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 908 transitions. [2021-03-25 04:49:42,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 908 transitions. [2021-03-25 04:49:42,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:49:42,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 908 transitions. [2021-03-25 04:49:42,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 151.33333333333334) internal successors, (908), 6 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:42,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:42,756 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:42,756 INFO L185 Difference]: Start difference. First operand has 54 places, 54 transitions, 342 flow. Second operand 6 states and 908 transitions. [2021-03-25 04:49:42,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 66 transitions, 494 flow [2021-03-25 04:49:42,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 66 transitions, 493 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:49:42,762 INFO L241 Difference]: Finished difference. Result has 59 places, 59 transitions, 445 flow [2021-03-25 04:49:42,762 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=445, PETRI_PLACES=59, PETRI_TRANSITIONS=59} [2021-03-25 04:49:42,763 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 5 predicate places. [2021-03-25 04:49:42,763 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:49:42,763 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 59 transitions, 445 flow [2021-03-25 04:49:42,763 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 59 transitions, 445 flow [2021-03-25 04:49:42,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 59 transitions, 445 flow [2021-03-25 04:49:42,818 INFO L129 PetriNetUnfolder]: 167/432 cut-off events. [2021-03-25 04:49:42,818 INFO L130 PetriNetUnfolder]: For 1586/1703 co-relation queries the response was YES. [2021-03-25 04:49:42,821 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1730 conditions, 432 events. 167/432 cut-off events. For 1586/1703 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 2776 event pairs, 19 based on Foata normal form. 13/410 useless extension candidates. Maximal degree in co-relation 1710. Up to 149 conditions per place. [2021-03-25 04:49:42,826 INFO L142 LiptonReduction]: Number of co-enabled transitions 882 [2021-03-25 04:49:42,906 INFO L154 LiptonReduction]: Checked pairs total: 1003 [2021-03-25 04:49:42,906 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:49:42,906 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 143 [2021-03-25 04:49:42,910 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 59 transitions, 445 flow [2021-03-25 04:49:42,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:42,911 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:49:42,911 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:49:42,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 04:49:42,911 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:49:42,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:49:42,912 INFO L82 PathProgramCache]: Analyzing trace with hash -364223841, now seen corresponding path program 1 times [2021-03-25 04:49:42,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:49:42,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109087255] [2021-03-25 04:49:42,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:49:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:49:42,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:42,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:49:42,975 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:49:42,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:49:42,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:42,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:49:42,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:49:42,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109087255] [2021-03-25 04:49:42,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:49:42,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:49:42,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712184227] [2021-03-25 04:49:42,984 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:49:42,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:49:42,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:49:42,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:49:42,985 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 198 [2021-03-25 04:49:42,986 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 59 transitions, 445 flow. Second operand has 4 states, 4 states have (on average 162.75) internal successors, (651), 4 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:42,986 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:49:42,986 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 198 [2021-03-25 04:49:42,986 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:49:43,249 INFO L129 PetriNetUnfolder]: 953/1814 cut-off events. [2021-03-25 04:49:43,249 INFO L130 PetriNetUnfolder]: For 3644/4259 co-relation queries the response was YES. [2021-03-25 04:49:43,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5447 conditions, 1814 events. 953/1814 cut-off events. For 3644/4259 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 13592 event pairs, 352 based on Foata normal form. 189/1634 useless extension candidates. Maximal degree in co-relation 5425. Up to 1098 conditions per place. [2021-03-25 04:49:43,271 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 13 selfloop transitions, 10 changer transitions 0/73 dead transitions. [2021-03-25 04:49:43,272 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 73 transitions, 519 flow [2021-03-25 04:49:43,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:49:43,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:49:43,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 834 transitions. [2021-03-25 04:49:43,274 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8424242424242424 [2021-03-25 04:49:43,274 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 834 transitions. [2021-03-25 04:49:43,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 834 transitions. [2021-03-25 04:49:43,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:49:43,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 834 transitions. [2021-03-25 04:49:43,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 166.8) internal successors, (834), 5 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:43,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:43,279 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:43,279 INFO L185 Difference]: Start difference. First operand has 59 places, 59 transitions, 445 flow. Second operand 5 states and 834 transitions. [2021-03-25 04:49:43,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 73 transitions, 519 flow [2021-03-25 04:49:43,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 73 transitions, 509 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 04:49:43,288 INFO L241 Difference]: Finished difference. Result has 64 places, 68 transitions, 514 flow [2021-03-25 04:49:43,288 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=514, PETRI_PLACES=64, PETRI_TRANSITIONS=68} [2021-03-25 04:49:43,288 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 10 predicate places. [2021-03-25 04:49:43,288 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:49:43,288 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 68 transitions, 514 flow [2021-03-25 04:49:43,288 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 68 transitions, 514 flow [2021-03-25 04:49:43,289 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 68 transitions, 514 flow [2021-03-25 04:49:43,452 INFO L129 PetriNetUnfolder]: 784/1554 cut-off events. [2021-03-25 04:49:43,452 INFO L130 PetriNetUnfolder]: For 4029/4784 co-relation queries the response was YES. [2021-03-25 04:49:43,462 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5800 conditions, 1554 events. 784/1554 cut-off events. For 4029/4784 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 11676 event pairs, 250 based on Foata normal form. 25/1387 useless extension candidates. Maximal degree in co-relation 5777. Up to 882 conditions per place. [2021-03-25 04:49:43,479 INFO L142 LiptonReduction]: Number of co-enabled transitions 1202 [2021-03-25 04:49:43,559 INFO L154 LiptonReduction]: Checked pairs total: 491 [2021-03-25 04:49:43,559 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:49:43,559 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 271 [2021-03-25 04:49:43,560 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 68 transitions, 514 flow [2021-03-25 04:49:43,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 162.75) internal successors, (651), 4 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:43,561 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:49:43,561 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:49:43,561 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 04:49:43,561 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:49:43,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:49:43,561 INFO L82 PathProgramCache]: Analyzing trace with hash 2003314511, now seen corresponding path program 1 times [2021-03-25 04:49:43,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:49:43,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727866662] [2021-03-25 04:49:43,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:49:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:49:43,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:43,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:49:43,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:43,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:49:43,620 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:49:43,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:49:43,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:43,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:49:43,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:49:43,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727866662] [2021-03-25 04:49:43,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:49:43,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:49:43,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051485758] [2021-03-25 04:49:43,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:49:43,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:49:43,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:49:43,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:49:43,630 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 198 [2021-03-25 04:49:43,631 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 68 transitions, 514 flow. Second operand has 5 states, 5 states have (on average 162.8) internal successors, (814), 5 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:43,631 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:49:43,631 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 198 [2021-03-25 04:49:43,631 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:49:43,876 INFO L129 PetriNetUnfolder]: 670/1372 cut-off events. [2021-03-25 04:49:43,876 INFO L130 PetriNetUnfolder]: For 4052/10304 co-relation queries the response was YES. [2021-03-25 04:49:43,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5543 conditions, 1372 events. 670/1372 cut-off events. For 4052/10304 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 10020 event pairs, 76 based on Foata normal form. 476/1646 useless extension candidates. Maximal degree in co-relation 5518. Up to 876 conditions per place. [2021-03-25 04:49:43,892 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 14 selfloop transitions, 19 changer transitions 0/79 dead transitions. [2021-03-25 04:49:43,892 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 79 transitions, 615 flow [2021-03-25 04:49:43,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:49:43,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:49:43,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1168 transitions. [2021-03-25 04:49:43,895 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8427128427128427 [2021-03-25 04:49:43,895 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1168 transitions. [2021-03-25 04:49:43,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1168 transitions. [2021-03-25 04:49:43,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:49:43,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1168 transitions. [2021-03-25 04:49:43,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 166.85714285714286) internal successors, (1168), 7 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:43,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:43,900 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:43,900 INFO L185 Difference]: Start difference. First operand has 64 places, 68 transitions, 514 flow. Second operand 7 states and 1168 transitions. [2021-03-25 04:49:43,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 79 transitions, 615 flow [2021-03-25 04:49:43,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 79 transitions, 610 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:49:43,906 INFO L241 Difference]: Finished difference. Result has 72 places, 73 transitions, 602 flow [2021-03-25 04:49:43,906 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=602, PETRI_PLACES=72, PETRI_TRANSITIONS=73} [2021-03-25 04:49:43,906 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 18 predicate places. [2021-03-25 04:49:43,906 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:49:43,906 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 73 transitions, 602 flow [2021-03-25 04:49:43,907 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 73 transitions, 602 flow [2021-03-25 04:49:43,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 73 transitions, 602 flow [2021-03-25 04:49:44,019 INFO L129 PetriNetUnfolder]: 482/1081 cut-off events. [2021-03-25 04:49:44,020 INFO L130 PetriNetUnfolder]: For 5225/8605 co-relation queries the response was YES. [2021-03-25 04:49:44,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5208 conditions, 1081 events. 482/1081 cut-off events. For 5225/8605 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 8318 event pairs, 56 based on Foata normal form. 53/1022 useless extension candidates. Maximal degree in co-relation 5181. Up to 695 conditions per place. [2021-03-25 04:49:44,040 INFO L142 LiptonReduction]: Number of co-enabled transitions 1458 [2021-03-25 04:49:44,229 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 04:49:44,642 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 85 [2021-03-25 04:49:44,774 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-03-25 04:49:44,824 INFO L154 LiptonReduction]: Checked pairs total: 1136 [2021-03-25 04:49:44,824 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:49:44,824 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 918 [2021-03-25 04:49:44,826 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 73 transitions, 607 flow [2021-03-25 04:49:44,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 162.8) internal successors, (814), 5 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:44,827 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:49:44,827 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:49:44,827 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 04:49:44,827 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:49:44,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:49:44,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1309433802, now seen corresponding path program 1 times [2021-03-25 04:49:44,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:49:44,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394794147] [2021-03-25 04:49:44,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:49:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:49:44,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:44,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:49:44,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:44,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:49:44,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:49:44,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394794147] [2021-03-25 04:49:44,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:49:44,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:49:44,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882360465] [2021-03-25 04:49:44,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:49:44,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:49:44,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:49:44,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:49:44,908 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 199 [2021-03-25 04:49:44,908 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 73 transitions, 607 flow. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:44,908 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:49:44,908 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 199 [2021-03-25 04:49:44,909 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:49:45,091 INFO L129 PetriNetUnfolder]: 752/1562 cut-off events. [2021-03-25 04:49:45,092 INFO L130 PetriNetUnfolder]: For 8222/14139 co-relation queries the response was YES. [2021-03-25 04:49:45,102 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7637 conditions, 1562 events. 752/1562 cut-off events. For 8222/14139 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 12099 event pairs, 112 based on Foata normal form. 73/1423 useless extension candidates. Maximal degree in co-relation 7608. Up to 1084 conditions per place. [2021-03-25 04:49:45,111 INFO L132 encePairwiseOnDemand]: 196/199 looper letters, 3 selfloop transitions, 3 changer transitions 0/73 dead transitions. [2021-03-25 04:49:45,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 73 transitions, 619 flow [2021-03-25 04:49:45,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:49:45,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:49:45,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2021-03-25 04:49:45,114 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8844221105527639 [2021-03-25 04:49:45,114 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 528 transitions. [2021-03-25 04:49:45,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 528 transitions. [2021-03-25 04:49:45,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:49:45,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 528 transitions. [2021-03-25 04:49:45,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:45,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 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) [2021-03-25 04:49:45,118 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 199.0) internal successors, (796), 4 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) [2021-03-25 04:49:45,118 INFO L185 Difference]: Start difference. First operand has 72 places, 73 transitions, 607 flow. Second operand 3 states and 528 transitions. [2021-03-25 04:49:45,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 73 transitions, 619 flow [2021-03-25 04:49:45,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 73 transitions, 567 flow, removed 18 selfloop flow, removed 3 redundant places. [2021-03-25 04:49:45,143 INFO L241 Difference]: Finished difference. Result has 72 places, 73 transitions, 566 flow [2021-03-25 04:49:45,144 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=566, PETRI_PLACES=72, PETRI_TRANSITIONS=73} [2021-03-25 04:49:45,144 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 18 predicate places. [2021-03-25 04:49:45,144 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:49:45,144 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 73 transitions, 566 flow [2021-03-25 04:49:45,144 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 73 transitions, 566 flow [2021-03-25 04:49:45,145 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 73 transitions, 566 flow [2021-03-25 04:49:45,319 INFO L129 PetriNetUnfolder]: 752/1565 cut-off events. [2021-03-25 04:49:45,319 INFO L130 PetriNetUnfolder]: For 6901/7867 co-relation queries the response was YES. [2021-03-25 04:49:45,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6804 conditions, 1565 events. 752/1565 cut-off events. For 6901/7867 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 12133 event pairs, 104 based on Foata normal form. 46/1428 useless extension candidates. Maximal degree in co-relation 6777. Up to 932 conditions per place. [2021-03-25 04:49:45,346 INFO L142 LiptonReduction]: Number of co-enabled transitions 1458 [2021-03-25 04:49:45,395 INFO L154 LiptonReduction]: Checked pairs total: 540 [2021-03-25 04:49:45,396 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:49:45,396 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 252 [2021-03-25 04:49:45,396 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 73 transitions, 566 flow [2021-03-25 04:49:45,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:45,397 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:49:45,397 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:49:45,397 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 04:49:45,397 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:49:45,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:49:45,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1718424997, now seen corresponding path program 1 times [2021-03-25 04:49:45,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:49:45,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243725137] [2021-03-25 04:49:45,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:49:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:49:45,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:45,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:49:45,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:45,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:49:45,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:45,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:49:45,456 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:49:45,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:49:45,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:45,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:49:45,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:49:45,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243725137] [2021-03-25 04:49:45,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:49:45,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:49:45,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924952856] [2021-03-25 04:49:45,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:49:45,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:49:45,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:49:45,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:49:45,469 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 199 [2021-03-25 04:49:45,471 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 73 transitions, 566 flow. Second operand has 6 states, 6 states have (on average 163.83333333333334) internal successors, (983), 6 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:45,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:49:45,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 199 [2021-03-25 04:49:45,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:49:45,713 INFO L129 PetriNetUnfolder]: 788/1557 cut-off events. [2021-03-25 04:49:45,713 INFO L130 PetriNetUnfolder]: For 9618/21115 co-relation queries the response was YES. [2021-03-25 04:49:45,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7079 conditions, 1557 events. 788/1557 cut-off events. For 9618/21115 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 11557 event pairs, 12 based on Foata normal form. 773/2057 useless extension candidates. Maximal degree in co-relation 7050. Up to 901 conditions per place. [2021-03-25 04:49:45,731 INFO L132 encePairwiseOnDemand]: 192/199 looper letters, 11 selfloop transitions, 28 changer transitions 4/88 dead transitions. [2021-03-25 04:49:45,732 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 88 transitions, 772 flow [2021-03-25 04:49:45,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 04:49:45,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 04:49:45,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1511 transitions. [2021-03-25 04:49:45,736 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8436627582356225 [2021-03-25 04:49:45,736 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1511 transitions. [2021-03-25 04:49:45,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1511 transitions. [2021-03-25 04:49:45,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:49:45,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1511 transitions. [2021-03-25 04:49:45,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 167.88888888888889) internal successors, (1511), 9 states have internal predecessors, (1511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:45,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 199.0) internal successors, (1990), 10 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:45,744 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 199.0) internal successors, (1990), 10 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:45,744 INFO L185 Difference]: Start difference. First operand has 72 places, 73 transitions, 566 flow. Second operand 9 states and 1511 transitions. [2021-03-25 04:49:45,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 88 transitions, 772 flow [2021-03-25 04:49:45,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 88 transitions, 765 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-25 04:49:45,762 INFO L241 Difference]: Finished difference. Result has 82 places, 81 transitions, 729 flow [2021-03-25 04:49:45,763 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=729, PETRI_PLACES=82, PETRI_TRANSITIONS=81} [2021-03-25 04:49:45,763 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 28 predicate places. [2021-03-25 04:49:45,763 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:49:45,763 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 81 transitions, 729 flow [2021-03-25 04:49:45,764 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 81 transitions, 729 flow [2021-03-25 04:49:45,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 81 transitions, 729 flow [2021-03-25 04:49:45,867 INFO L129 PetriNetUnfolder]: 498/1130 cut-off events. [2021-03-25 04:49:45,867 INFO L130 PetriNetUnfolder]: For 7394/8727 co-relation queries the response was YES. [2021-03-25 04:49:45,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5876 conditions, 1130 events. 498/1130 cut-off events. For 7394/8727 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 8829 event pairs, 11 based on Foata normal form. 31/1016 useless extension candidates. Maximal degree in co-relation 5845. Up to 666 conditions per place. [2021-03-25 04:49:45,889 INFO L142 LiptonReduction]: Number of co-enabled transitions 1566 [2021-03-25 04:49:46,104 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 04:49:46,495 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2021-03-25 04:49:46,614 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-03-25 04:49:46,654 INFO L154 LiptonReduction]: Checked pairs total: 1334 [2021-03-25 04:49:46,654 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:49:46,655 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 892 [2021-03-25 04:49:46,655 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 81 transitions, 734 flow [2021-03-25 04:49:46,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 163.83333333333334) internal successors, (983), 6 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:46,656 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:49:46,656 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] [2021-03-25 04:49:46,656 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 04:49:46,656 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:49:46,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:49:46,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1571751982, now seen corresponding path program 1 times [2021-03-25 04:49:46,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:49:46,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204942503] [2021-03-25 04:49:46,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:49:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:49:46,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:46,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:49:46,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:46,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:49:46,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:46,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:49:46,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:46,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:49:46,719 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:49:46,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:49:46,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:46,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:49:46,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:49:46,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204942503] [2021-03-25 04:49:46,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:49:46,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 04:49:46,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148255285] [2021-03-25 04:49:46,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:49:46,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:49:46,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:49:46,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:49:46,730 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 200 [2021-03-25 04:49:46,731 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 81 transitions, 734 flow. Second operand has 7 states, 7 states have (on average 164.85714285714286) internal successors, (1154), 7 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:46,731 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:49:46,731 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 200 [2021-03-25 04:49:46,731 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:49:47,007 INFO L129 PetriNetUnfolder]: 717/1424 cut-off events. [2021-03-25 04:49:47,007 INFO L130 PetriNetUnfolder]: For 13336/30524 co-relation queries the response was YES. [2021-03-25 04:49:47,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7902 conditions, 1424 events. 717/1424 cut-off events. For 13336/30524 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 10573 event pairs, 0 based on Foata normal form. 723/1881 useless extension candidates. Maximal degree in co-relation 7869. Up to 830 conditions per place. [2021-03-25 04:49:47,026 INFO L132 encePairwiseOnDemand]: 193/200 looper letters, 6 selfloop transitions, 33 changer transitions 6/89 dead transitions. [2021-03-25 04:49:47,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 89 transitions, 879 flow [2021-03-25 04:49:47,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-25 04:49:47,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-25 04:49:47,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1850 transitions. [2021-03-25 04:49:47,030 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8409090909090909 [2021-03-25 04:49:47,030 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1850 transitions. [2021-03-25 04:49:47,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1850 transitions. [2021-03-25 04:49:47,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:49:47,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1850 transitions. [2021-03-25 04:49:47,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 168.1818181818182) internal successors, (1850), 11 states have internal predecessors, (1850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:47,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 200.0) internal successors, (2400), 12 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:47,038 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 200.0) internal successors, (2400), 12 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:47,038 INFO L185 Difference]: Start difference. First operand has 82 places, 81 transitions, 734 flow. Second operand 11 states and 1850 transitions. [2021-03-25 04:49:47,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 89 transitions, 879 flow [2021-03-25 04:49:47,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 89 transitions, 768 flow, removed 41 selfloop flow, removed 4 redundant places. [2021-03-25 04:49:47,116 INFO L241 Difference]: Finished difference. Result has 91 places, 80 transitions, 691 flow [2021-03-25 04:49:47,116 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=200, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=691, PETRI_PLACES=91, PETRI_TRANSITIONS=80} [2021-03-25 04:49:47,117 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 37 predicate places. [2021-03-25 04:49:47,117 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:49:47,117 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 80 transitions, 691 flow [2021-03-25 04:49:47,117 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 80 transitions, 691 flow [2021-03-25 04:49:47,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 80 transitions, 691 flow [2021-03-25 04:49:47,204 INFO L129 PetriNetUnfolder]: 451/1027 cut-off events. [2021-03-25 04:49:47,205 INFO L130 PetriNetUnfolder]: For 3851/4577 co-relation queries the response was YES. [2021-03-25 04:49:47,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4562 conditions, 1027 events. 451/1027 cut-off events. For 3851/4577 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 8132 event pairs, 0 based on Foata normal form. 21/902 useless extension candidates. Maximal degree in co-relation 4527. Up to 295 conditions per place. [2021-03-25 04:49:47,225 INFO L142 LiptonReduction]: Number of co-enabled transitions 1516 [2021-03-25 04:49:47,825 WARN L205 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 182 [2021-03-25 04:49:48,015 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-03-25 04:49:49,119 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 336 DAG size of output: 258 [2021-03-25 04:49:49,563 WARN L205 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-03-25 04:49:49,789 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-03-25 04:49:49,996 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-03-25 04:49:50,443 WARN L205 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-03-25 04:49:50,886 WARN L205 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-03-25 04:49:50,905 INFO L154 LiptonReduction]: Checked pairs total: 2014 [2021-03-25 04:49:50,905 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-25 04:49:50,905 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3788 [2021-03-25 04:49:50,906 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 74 transitions, 651 flow [2021-03-25 04:49:50,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 164.85714285714286) internal successors, (1154), 7 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:50,906 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:49:50,906 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:49:50,906 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 04:49:50,907 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:49:50,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:49:50,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1577795560, now seen corresponding path program 1 times [2021-03-25 04:49:50,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:49:50,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939720609] [2021-03-25 04:49:50,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:49:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:49:50,963 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-25 04:49:50,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 04:49:50,983 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-25 04:49:50,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 04:49:51,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:51,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 04:49:51,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:51,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 04:49:51,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:49:51,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939720609] [2021-03-25 04:49:51,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:49:51,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:49:51,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136386330] [2021-03-25 04:49:51,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:49:51,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:49:51,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:49:51,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:49:51,022 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 202 [2021-03-25 04:49:51,022 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 74 transitions, 651 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:51,022 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:49:51,023 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 202 [2021-03-25 04:49:51,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:49:51,251 INFO L129 PetriNetUnfolder]: 454/976 cut-off events. [2021-03-25 04:49:51,251 INFO L130 PetriNetUnfolder]: For 8813/9309 co-relation queries the response was YES. [2021-03-25 04:49:51,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4347 conditions, 976 events. 454/976 cut-off events. For 8813/9309 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 6680 event pairs, 6 based on Foata normal form. 62/942 useless extension candidates. Maximal degree in co-relation 4310. Up to 298 conditions per place. [2021-03-25 04:49:51,260 INFO L132 encePairwiseOnDemand]: 197/202 looper letters, 31 selfloop transitions, 12 changer transitions 46/121 dead transitions. [2021-03-25 04:49:51,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 121 transitions, 1255 flow [2021-03-25 04:49:51,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:49:51,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:49:51,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1104 transitions. [2021-03-25 04:49:51,263 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7807637906647807 [2021-03-25 04:49:51,263 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1104 transitions. [2021-03-25 04:49:51,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1104 transitions. [2021-03-25 04:49:51,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:49:51,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1104 transitions. [2021-03-25 04:49:51,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 157.71428571428572) internal successors, (1104), 7 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:51,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 202.0) internal successors, (1616), 8 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:51,268 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 202.0) internal successors, (1616), 8 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:51,268 INFO L185 Difference]: Start difference. First operand has 88 places, 74 transitions, 651 flow. Second operand 7 states and 1104 transitions. [2021-03-25 04:49:51,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 121 transitions, 1255 flow [2021-03-25 04:49:51,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 121 transitions, 1149 flow, removed 29 selfloop flow, removed 14 redundant places. [2021-03-25 04:49:51,290 INFO L241 Difference]: Finished difference. Result has 73 places, 66 transitions, 516 flow [2021-03-25 04:49:51,290 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=516, PETRI_PLACES=73, PETRI_TRANSITIONS=66} [2021-03-25 04:49:51,290 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 19 predicate places. [2021-03-25 04:49:51,290 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:49:51,290 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 66 transitions, 516 flow [2021-03-25 04:49:51,291 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 66 transitions, 516 flow [2021-03-25 04:49:51,291 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 66 transitions, 516 flow [2021-03-25 04:49:51,334 INFO L129 PetriNetUnfolder]: 260/572 cut-off events. [2021-03-25 04:49:51,334 INFO L130 PetriNetUnfolder]: For 1256/1393 co-relation queries the response was YES. [2021-03-25 04:49:51,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1929 conditions, 572 events. 260/572 cut-off events. For 1256/1393 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 3589 event pairs, 0 based on Foata normal form. 32/535 useless extension candidates. Maximal degree in co-relation 1903. Up to 194 conditions per place. [2021-03-25 04:49:51,342 INFO L142 LiptonReduction]: Number of co-enabled transitions 910 [2021-03-25 04:49:51,354 INFO L154 LiptonReduction]: Checked pairs total: 274 [2021-03-25 04:49:51,354 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:49:51,354 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-03-25 04:49:51,355 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 66 transitions, 516 flow [2021-03-25 04:49:51,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:51,356 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:49:51,356 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:49:51,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 04:49:51,356 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:49:51,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:49:51,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1054556402, now seen corresponding path program 1 times [2021-03-25 04:49:51,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:49:51,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511618527] [2021-03-25 04:49:51,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:49:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:49:51,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:51,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:49:51,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:51,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:49:51,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:51,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:49:51,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:49:51,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511618527] [2021-03-25 04:49:51,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:49:51,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:49:51,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516787708] [2021-03-25 04:49:51,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:49:51,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:49:51,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:49:51,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:49:51,406 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 202 [2021-03-25 04:49:51,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 66 transitions, 516 flow. Second operand has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:51,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:49:51,407 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 202 [2021-03-25 04:49:51,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:49:51,497 INFO L129 PetriNetUnfolder]: 379/877 cut-off events. [2021-03-25 04:49:51,497 INFO L130 PetriNetUnfolder]: For 2197/2482 co-relation queries the response was YES. [2021-03-25 04:49:51,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2960 conditions, 877 events. 379/877 cut-off events. For 2197/2482 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 6286 event pairs, 2 based on Foata normal form. 73/849 useless extension candidates. Maximal degree in co-relation 2932. Up to 290 conditions per place. [2021-03-25 04:49:51,504 INFO L132 encePairwiseOnDemand]: 199/202 looper letters, 3 selfloop transitions, 1 changer transitions 21/67 dead transitions. [2021-03-25 04:49:51,504 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 67 transitions, 528 flow [2021-03-25 04:49:51,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:49:51,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:49:51,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 686 transitions. [2021-03-25 04:49:51,507 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.849009900990099 [2021-03-25 04:49:51,507 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 686 transitions. [2021-03-25 04:49:51,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 686 transitions. [2021-03-25 04:49:51,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:49:51,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 686 transitions. [2021-03-25 04:49:51,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 171.5) internal successors, (686), 4 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:51,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:51,523 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:51,523 INFO L185 Difference]: Start difference. First operand has 71 places, 66 transitions, 516 flow. Second operand 4 states and 686 transitions. [2021-03-25 04:49:51,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 67 transitions, 528 flow [2021-03-25 04:49:51,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 67 transitions, 526 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 04:49:51,540 INFO L241 Difference]: Finished difference. Result has 75 places, 46 transitions, 291 flow [2021-03-25 04:49:51,540 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=291, PETRI_PLACES=75, PETRI_TRANSITIONS=46} [2021-03-25 04:49:51,540 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 21 predicate places. [2021-03-25 04:49:51,540 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:49:51,540 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 46 transitions, 291 flow [2021-03-25 04:49:51,541 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 46 transitions, 291 flow [2021-03-25 04:49:51,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 46 transitions, 291 flow [2021-03-25 04:49:51,570 INFO L129 PetriNetUnfolder]: 165/390 cut-off events. [2021-03-25 04:49:51,571 INFO L130 PetriNetUnfolder]: For 698/779 co-relation queries the response was YES. [2021-03-25 04:49:51,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1252 conditions, 390 events. 165/390 cut-off events. For 698/779 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2341 event pairs, 0 based on Foata normal form. 20/358 useless extension candidates. Maximal degree in co-relation 1224. Up to 144 conditions per place. [2021-03-25 04:49:51,575 INFO L142 LiptonReduction]: Number of co-enabled transitions 516 [2021-03-25 04:49:51,732 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 04:49:52,119 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 87 [2021-03-25 04:49:52,244 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-03-25 04:49:52,304 INFO L154 LiptonReduction]: Checked pairs total: 111 [2021-03-25 04:49:52,304 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 04:49:52,304 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 764 [2021-03-25 04:49:52,304 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 44 transitions, 296 flow [2021-03-25 04:49:52,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:52,305 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:49:52,305 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:49:52,305 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 04:49:52,305 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:49:52,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:49:52,305 INFO L82 PathProgramCache]: Analyzing trace with hash 139943823, now seen corresponding path program 1 times [2021-03-25 04:49:52,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:49:52,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405943015] [2021-03-25 04:49:52,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:49:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:49:52,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:52,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:49:52,367 INFO L142 QuantifierPusher]: treesize reduction 10, result has 75.6 percent of original size [2021-03-25 04:49:52,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 04:49:52,401 INFO L142 QuantifierPusher]: treesize reduction 26, result has 60.6 percent of original size [2021-03-25 04:49:52,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 04:49:52,431 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.3 percent of original size [2021-03-25 04:49:52,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 04:49:52,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:52,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:49:52,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:49:52,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 04:49:52,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:49:52,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405943015] [2021-03-25 04:49:52,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:49:52,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 04:49:52,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877273066] [2021-03-25 04:49:52,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 04:49:52,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:49:52,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 04:49:52,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-25 04:49:52,494 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 206 [2021-03-25 04:49:52,495 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 44 transitions, 296 flow. Second operand has 8 states, 8 states have (on average 151.875) internal successors, (1215), 8 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:52,495 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:49:52,495 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 206 [2021-03-25 04:49:52,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:49:52,691 INFO L129 PetriNetUnfolder]: 259/563 cut-off events. [2021-03-25 04:49:52,692 INFO L130 PetriNetUnfolder]: For 1255/1507 co-relation queries the response was YES. [2021-03-25 04:49:52,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1863 conditions, 563 events. 259/563 cut-off events. For 1255/1507 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 3603 event pairs, 0 based on Foata normal form. 56/548 useless extension candidates. Maximal degree in co-relation 1831. Up to 203 conditions per place. [2021-03-25 04:49:52,695 INFO L132 encePairwiseOnDemand]: 199/206 looper letters, 9 selfloop transitions, 8 changer transitions 7/52 dead transitions. [2021-03-25 04:49:52,695 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 52 transitions, 416 flow [2021-03-25 04:49:52,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 04:49:52,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 04:49:52,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1228 transitions. [2021-03-25 04:49:52,699 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7451456310679612 [2021-03-25 04:49:52,699 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1228 transitions. [2021-03-25 04:49:52,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1228 transitions. [2021-03-25 04:49:52,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:49:52,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1228 transitions. [2021-03-25 04:49:52,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 153.5) internal successors, (1228), 8 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:52,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 206.0) internal successors, (1854), 9 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:52,704 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 206.0) internal successors, (1854), 9 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:52,704 INFO L185 Difference]: Start difference. First operand has 68 places, 44 transitions, 296 flow. Second operand 8 states and 1228 transitions. [2021-03-25 04:49:52,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 52 transitions, 416 flow [2021-03-25 04:49:52,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 52 transitions, 367 flow, removed 8 selfloop flow, removed 11 redundant places. [2021-03-25 04:49:52,713 INFO L241 Difference]: Finished difference. Result has 68 places, 43 transitions, 290 flow [2021-03-25 04:49:52,713 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=290, PETRI_PLACES=68, PETRI_TRANSITIONS=43} [2021-03-25 04:49:52,713 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 14 predicate places. [2021-03-25 04:49:52,714 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:49:52,714 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 43 transitions, 290 flow [2021-03-25 04:49:52,714 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 43 transitions, 290 flow [2021-03-25 04:49:52,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 43 transitions, 290 flow [2021-03-25 04:49:52,730 INFO L129 PetriNetUnfolder]: 87/216 cut-off events. [2021-03-25 04:49:52,731 INFO L130 PetriNetUnfolder]: For 415/468 co-relation queries the response was YES. [2021-03-25 04:49:52,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 216 events. 87/216 cut-off events. For 415/468 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1032 event pairs, 0 based on Foata normal form. 15/218 useless extension candidates. Maximal degree in co-relation 691. Up to 75 conditions per place. [2021-03-25 04:49:52,733 INFO L142 LiptonReduction]: Number of co-enabled transitions 310 [2021-03-25 04:49:53,000 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-03-25 04:49:53,152 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-03-25 04:49:53,193 INFO L154 LiptonReduction]: Checked pairs total: 59 [2021-03-25 04:49:53,194 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:49:53,194 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 480 [2021-03-25 04:49:53,194 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 42 transitions, 292 flow [2021-03-25 04:49:53,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 151.875) internal successors, (1215), 8 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:49:53,195 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:49:53,195 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] [2021-03-25 04:49:53,195 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 04:49:53,195 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:49:53,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:49:53,195 INFO L82 PathProgramCache]: Analyzing trace with hash 122156122, now seen corresponding path program 1 times [2021-03-25 04:49:53,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:49:53,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087131777] [2021-03-25 04:49:53,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:49:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:49:53,220 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:49:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:49:53,247 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:49:53,271 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:49:53,272 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:49:53,272 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 04:49:53,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 04:49:53 BasicIcfg [2021-03-25 04:49:53,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 04:49:53,364 INFO L168 Benchmark]: Toolchain (without parser) took 26815.49 ms. Allocated memory was 346.0 MB in the beginning and 755.0 MB in the end (delta: 408.9 MB). Free memory was 309.1 MB in the beginning and 437.6 MB in the end (delta: -128.5 MB). Peak memory consumption was 283.4 MB. Max. memory is 16.0 GB. [2021-03-25 04:49:53,364 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 346.0 MB. Free memory was 327.5 MB in the beginning and 327.4 MB in the end (delta: 144.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 04:49:53,365 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.35 ms. Allocated memory is still 346.0 MB. Free memory was 308.8 MB in the beginning and 304.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-03-25 04:49:53,365 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.61 ms. Allocated memory is still 346.0 MB. Free memory was 304.0 MB in the beginning and 300.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-25 04:49:53,365 INFO L168 Benchmark]: Boogie Preprocessor took 28.19 ms. Allocated memory is still 346.0 MB. Free memory was 300.8 MB in the beginning and 298.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:49:53,365 INFO L168 Benchmark]: RCFGBuilder took 1688.47 ms. Allocated memory is still 346.0 MB. Free memory was 298.7 MB in the beginning and 247.6 MB in the end (delta: 51.1 MB). Peak memory consumption was 154.9 MB. Max. memory is 16.0 GB. [2021-03-25 04:49:53,365 INFO L168 Benchmark]: TraceAbstraction took 24399.71 ms. Allocated memory was 346.0 MB in the beginning and 755.0 MB in the end (delta: 408.9 MB). Free memory was 247.6 MB in the beginning and 437.6 MB in the end (delta: -189.9 MB). Peak memory consumption was 220.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:49:53,366 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 346.0 MB. Free memory was 327.5 MB in the beginning and 327.4 MB in the end (delta: 144.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 618.35 ms. Allocated memory is still 346.0 MB. Free memory was 308.8 MB in the beginning and 304.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 75.61 ms. Allocated memory is still 346.0 MB. Free memory was 304.0 MB in the beginning and 300.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.19 ms. Allocated memory is still 346.0 MB. Free memory was 300.8 MB in the beginning and 298.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1688.47 ms. Allocated memory is still 346.0 MB. Free memory was 298.7 MB in the beginning and 247.6 MB in the end (delta: 51.1 MB). Peak memory consumption was 154.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 24399.71 ms. Allocated memory was 346.0 MB in the beginning and 755.0 MB in the end (delta: 408.9 MB). Free memory was 247.6 MB in the beginning and 437.6 MB in the end (delta: -189.9 MB). Peak memory consumption was 220.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7657.1ms, 121 PlacesBefore, 54 PlacesAfterwards, 110 TransitionsBefore, 42 TransitionsAfterwards, 2530 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 4698 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1819, positive: 1708, positive conditional: 0, positive unconditional: 1708, negative: 111, negative conditional: 0, negative unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1122, positive: 1094, positive conditional: 0, positive unconditional: 1094, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1122, positive: 1094, positive conditional: 0, positive unconditional: 1094, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1819, positive: 614, positive conditional: 0, positive unconditional: 614, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 1122, unknown conditional: 0, unknown unconditional: 1122] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2848.4ms, 50 PlacesBefore, 39 PlacesAfterwards, 35 TransitionsBefore, 28 TransitionsAfterwards, 402 CoEnabledTransitionPairs, 4 FixpointIterations, 6 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 1868 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 456, positive: 351, positive conditional: 0, positive unconditional: 351, negative: 105, negative conditional: 0, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 48, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 48, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 456, positive: 312, positive conditional: 0, positive unconditional: 312, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 48, unknown conditional: 0, unknown unconditional: 48] , Statistics on independence cache: Total cache size (in pairs): 108, Positive cache size: 87, Positive conditional cache size: 0, Positive unconditional cache size: 87, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 835.5ms, 42 PlacesBefore, 41 PlacesAfterwards, 34 TransitionsBefore, 33 TransitionsAfterwards, 490 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 780 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 230, positive: 194, positive conditional: 0, positive unconditional: 194, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 230, positive: 190, positive conditional: 0, positive unconditional: 190, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 114, Positive cache size: 91, Positive conditional cache size: 0, Positive unconditional cache size: 91, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.2ms, 47 PlacesBefore, 47 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 562 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 472 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 118, positive: 97, positive conditional: 0, positive unconditional: 97, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 118, positive: 89, positive conditional: 0, positive unconditional: 89, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 122, Positive cache size: 99, Positive conditional cache size: 0, Positive unconditional cache size: 99, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.9ms, 49 PlacesBefore, 49 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 632 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 374 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 145, positive: 128, positive conditional: 0, positive unconditional: 128, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 145, positive: 125, positive conditional: 0, positive unconditional: 125, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 125, Positive cache size: 102, Positive conditional cache size: 0, Positive unconditional cache size: 102, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 138.6ms, 54 PlacesBefore, 54 PlacesAfterwards, 54 TransitionsBefore, 54 TransitionsAfterwards, 832 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 689 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 163, positive: 140, positive conditional: 0, positive unconditional: 140, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 163, positive: 136, positive conditional: 0, positive unconditional: 136, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 129, Positive cache size: 106, Positive conditional cache size: 0, Positive unconditional cache size: 106, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 142.8ms, 59 PlacesBefore, 59 PlacesAfterwards, 59 TransitionsBefore, 59 TransitionsAfterwards, 882 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1003 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 339, positive: 305, positive conditional: 0, positive unconditional: 305, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 339, positive: 301, positive conditional: 0, positive unconditional: 301, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 133, Positive cache size: 110, Positive conditional cache size: 0, Positive unconditional cache size: 110, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 270.8ms, 64 PlacesBefore, 64 PlacesAfterwards, 68 TransitionsBefore, 68 TransitionsAfterwards, 1202 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 491 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 291, positive: 278, positive conditional: 0, positive unconditional: 278, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 291, positive: 276, positive conditional: 0, positive unconditional: 276, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 135, Positive cache size: 112, Positive conditional cache size: 0, Positive unconditional cache size: 112, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 917.5ms, 72 PlacesBefore, 72 PlacesAfterwards, 73 TransitionsBefore, 73 TransitionsAfterwards, 1458 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1136 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 689, positive: 663, positive conditional: 0, positive unconditional: 663, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 689, positive: 648, positive conditional: 0, positive unconditional: 648, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 15, unknown conditional: 0, unknown unconditional: 15] , Statistics on independence cache: Total cache size (in pairs): 145, Positive cache size: 125, Positive conditional cache size: 0, Positive unconditional cache size: 125, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 251.5ms, 72 PlacesBefore, 72 PlacesAfterwards, 73 TransitionsBefore, 73 TransitionsAfterwards, 1458 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 540 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 246, positive: 234, positive conditional: 0, positive unconditional: 234, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 246, positive: 234, positive conditional: 0, positive unconditional: 234, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 145, Positive cache size: 125, Positive conditional cache size: 0, Positive unconditional cache size: 125, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 890.8ms, 82 PlacesBefore, 82 PlacesAfterwards, 81 TransitionsBefore, 81 TransitionsAfterwards, 1566 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1334 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 559, positive: 531, positive conditional: 0, positive unconditional: 531, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 559, positive: 527, positive conditional: 0, positive unconditional: 527, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 129, Positive conditional cache size: 0, Positive unconditional cache size: 129, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3788.2ms, 91 PlacesBefore, 88 PlacesAfterwards, 80 TransitionsBefore, 74 TransitionsAfterwards, 1516 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 2014 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1357, positive: 1312, positive conditional: 0, positive unconditional: 1312, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1357, positive: 1309, positive conditional: 0, positive unconditional: 1309, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 117, Positive cache size: 108, Positive conditional cache size: 0, Positive unconditional cache size: 108, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 63.1ms, 73 PlacesBefore, 71 PlacesAfterwards, 66 TransitionsBefore, 66 TransitionsAfterwards, 910 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 274 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 206, positive: 196, positive conditional: 0, positive unconditional: 196, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 206, positive: 196, positive conditional: 0, positive unconditional: 196, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 117, Positive cache size: 108, Positive conditional cache size: 0, Positive unconditional cache size: 108, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 763.4ms, 75 PlacesBefore, 68 PlacesAfterwards, 46 TransitionsBefore, 44 TransitionsAfterwards, 516 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 111 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 96, positive: 95, positive conditional: 0, positive unconditional: 95, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 96, positive: 91, positive conditional: 0, positive unconditional: 91, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 89, Positive cache size: 82, Positive conditional cache size: 0, Positive unconditional cache size: 82, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 479.8ms, 68 PlacesBefore, 65 PlacesAfterwards, 43 TransitionsBefore, 42 TransitionsAfterwards, 310 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 59 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 47, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 47, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 92, Positive cache size: 85, Positive conditional cache size: 0, Positive unconditional cache size: 85, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p2_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int a = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L722] 0 int y = 0; [L723] 0 _Bool y$flush_delayed; [L724] 0 int y$mem_tmp; [L725] 0 _Bool y$r_buff0_thd0; [L726] 0 _Bool y$r_buff0_thd1; [L727] 0 _Bool y$r_buff0_thd2; [L728] 0 _Bool y$r_buff0_thd3; [L729] 0 _Bool y$r_buff0_thd4; [L730] 0 _Bool y$r_buff1_thd0; [L731] 0 _Bool y$r_buff1_thd1; [L732] 0 _Bool y$r_buff1_thd2; [L733] 0 _Bool y$r_buff1_thd3; [L734] 0 _Bool y$r_buff1_thd4; [L735] 0 _Bool y$read_delayed; [L736] 0 int *y$read_delayed_var; [L737] 0 int y$w_buff0; [L738] 0 _Bool y$w_buff0_used; [L739] 0 int y$w_buff1; [L740] 0 _Bool y$w_buff1_used; [L742] 0 int z = 0; [L743] 0 _Bool weak$$choice0; [L744] 0 _Bool weak$$choice2; [L841] 0 pthread_t t1433; [L842] FCALL, FORK 0 pthread_create(&t1433, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L843] 0 pthread_t t1434; [L844] FCALL, FORK 0 pthread_create(&t1434, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L845] 0 pthread_t t1435; [L846] FCALL, FORK 0 pthread_create(&t1435, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L847] 0 pthread_t t1436; [L848] FCALL, FORK 0 pthread_create(&t1436, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L783] 3 y$w_buff1 = y$w_buff0 [L784] 3 y$w_buff0 = 2 [L785] 3 y$w_buff1_used = y$w_buff0_used [L786] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L788] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L789] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L790] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L791] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L792] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L793] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L796] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L813] 4 z = 1 [L816] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L748] 1 a = 1 [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L763] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L766] 2 y = 1 [L769] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L769] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L769] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L769] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L770] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L770] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L771] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L772] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L773] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L799] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L799] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L800] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L800] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L801] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L801] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L802] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L802] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L803] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L803] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L819] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L819] EXPR 4 y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y [L819] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L819] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L820] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L820] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L821] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L821] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L822] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L822] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L823] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L823] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L758] 1 return 0; [L806] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L808] 3 return 0; [L776] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L778] 2 return 0; [L826] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L828] 4 return 0; [L850] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L854] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L854] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L854] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L854] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L855] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L855] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L856] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L856] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L857] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L857] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L858] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L858] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L861] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L862] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L863] 0 y$flush_delayed = weak$$choice2 [L864] 0 y$mem_tmp = y [L865] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L865] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L866] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L866] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0) [L866] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L866] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L867] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L867] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1) [L867] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L867] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L868] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L868] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used) [L868] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L868] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L869] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L869] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L869] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L869] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L870] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L870] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0) [L870] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L870] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L871] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L871] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L871] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L871] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L872] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 0) [L873] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L873] 0 y = y$flush_delayed ? y$mem_tmp : y [L874] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 113 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 6.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 24205.5ms, OverallIterations: 15, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2930.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7724.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 59 SDtfs, 59 SDslu, 37 SDs, 0 SdLazy, 463 SolverSat, 161 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 514.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 639.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=734occurred in iteration=10, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 51.2ms SsaConstructionTime, 518.4ms SatisfiabilityAnalysisTime, 1235.7ms InterpolantComputationTime, 273 NumberOfCodeBlocks, 273 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 238 ConstructedInterpolants, 0 QuantifiedInterpolants, 2004 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...