/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/mix030_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 04:40:35,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 04:40:35,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 04:40:35,113 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 04:40:35,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 04:40:35,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 04:40:35,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 04:40:35,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 04:40:35,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 04:40:35,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 04:40:35,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 04:40:35,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 04:40:35,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 04:40:35,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 04:40:35,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 04:40:35,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 04:40:35,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 04:40:35,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 04:40:35,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 04:40:35,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 04:40:35,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 04:40:35,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 04:40:35,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 04:40:35,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 04:40:35,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 04:40:35,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 04:40:35,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 04:40:35,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 04:40:35,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 04:40:35,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 04:40:35,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 04:40:35,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 04:40:35,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 04:40:35,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 04:40:35,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 04:40:35,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 04:40:35,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 04:40:35,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 04:40:35,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 04:40:35,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 04:40:35,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 04:40:35,169 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 04:40:35,195 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 04:40:35,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 04:40:35,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 04:40:35,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 04:40:35,198 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 04:40:35,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 04:40:35,199 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 04:40:35,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 04:40:35,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 04:40:35,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 04:40:35,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 04:40:35,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 04:40:35,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 04:40:35,200 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 04:40:35,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 04:40:35,200 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 04:40:35,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 04:40:35,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 04:40:35,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 04:40:35,200 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 04:40:35,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 04:40:35,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:40:35,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 04:40:35,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 04:40:35,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 04:40:35,201 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 04:40:35,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 04:40:35,201 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 04:40:35,201 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 04:40:35,201 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 04:40:35,201 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 04:40:35,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 04:40:35,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 04:40:35,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 04:40:35,530 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 04:40:35,530 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 04:40:35,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix030_power.opt.i [2021-03-25 04:40:35,602 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d9ffa277/c35a5cac2e8d4329832f24c74ef06ef2/FLAG8dbe6182f [2021-03-25 04:40:36,054 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 04:40:36,054 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_power.opt.i [2021-03-25 04:40:36,066 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d9ffa277/c35a5cac2e8d4329832f24c74ef06ef2/FLAG8dbe6182f [2021-03-25 04:40:36,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d9ffa277/c35a5cac2e8d4329832f24c74ef06ef2 [2021-03-25 04:40:36,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 04:40:36,084 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 04:40:36,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 04:40:36,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 04:40:36,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 04:40:36,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:40:36" (1/1) ... [2021-03-25 04:40:36,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@532503d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:36, skipping insertion in model container [2021-03-25 04:40:36,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:40:36" (1/1) ... [2021-03-25 04:40:36,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 04:40:36,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 04:40:36,273 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_power.opt.i[950,963] [2021-03-25 04:40:36,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:40:36,452 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 04:40:36,466 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_power.opt.i[950,963] [2021-03-25 04:40:36,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:40:36,573 INFO L208 MainTranslator]: Completed translation [2021-03-25 04:40:36,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:36 WrapperNode [2021-03-25 04:40:36,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 04:40:36,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 04:40:36,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 04:40:36,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 04:40:36,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:36" (1/1) ... [2021-03-25 04:40:36,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:36" (1/1) ... [2021-03-25 04:40:36,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 04:40:36,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 04:40:36,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 04:40:36,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 04:40:36,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:36" (1/1) ... [2021-03-25 04:40:36,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:36" (1/1) ... [2021-03-25 04:40:36,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:36" (1/1) ... [2021-03-25 04:40:36,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:36" (1/1) ... [2021-03-25 04:40:36,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:36" (1/1) ... [2021-03-25 04:40:36,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:36" (1/1) ... [2021-03-25 04:40:36,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:36" (1/1) ... [2021-03-25 04:40:36,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 04:40:36,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 04:40:36,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 04:40:36,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 04:40:36,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:36" (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 04:40:36,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 04:40:36,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 04:40:36,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 04:40:36,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 04:40:36,768 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 04:40:36,768 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 04:40:36,769 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 04:40:36,769 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 04:40:36,769 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 04:40:36,769 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 04:40:36,769 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 04:40:36,769 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 04:40:36,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 04:40:36,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 04:40:36,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 04:40:36,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 04:40:36,771 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 04:40:38,116 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 04:40:38,116 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 04:40:38,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:40:38 BoogieIcfgContainer [2021-03-25 04:40:38,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 04:40:38,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 04:40:38,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 04:40:38,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 04:40:38,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 04:40:36" (1/3) ... [2021-03-25 04:40:38,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f563423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:40:38, skipping insertion in model container [2021-03-25 04:40:38,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:36" (2/3) ... [2021-03-25 04:40:38,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f563423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:40:38, skipping insertion in model container [2021-03-25 04:40:38,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:40:38" (3/3) ... [2021-03-25 04:40:38,122 INFO L111 eAbstractionObserver]: Analyzing ICFG mix030_power.opt.i [2021-03-25 04:40:38,126 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 04:40:38,128 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 04:40:38,129 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 04:40:38,150 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,150 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,150 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,150 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,150 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,150 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,150 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,150 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,150 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,151 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,151 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,151 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,151 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,151 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,151 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,151 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,151 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,151 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,151 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,151 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,152 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,153 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,153 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,153 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,153 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,153 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,153 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,153 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,154 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,154 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,154 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,154 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,154 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,154 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,154 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,154 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,155 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,155 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,155 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,155 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,155 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,155 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,155 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,155 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,155 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,155 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,156 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,157 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,157 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,157 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,157 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,157 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,157 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,157 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,157 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,157 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,157 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,157 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,157 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,157 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,158 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,158 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,158 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,158 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,158 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,158 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,158 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,158 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,158 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,159 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,159 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,159 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,159 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,160 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,160 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,160 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,160 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,160 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,160 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,160 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,161 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,161 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,161 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,161 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,161 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,162 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,162 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,162 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,162 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,162 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,162 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,162 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,163 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,163 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,163 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,163 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,164 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,164 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,164 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,164 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,165 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,165 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,165 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,165 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,165 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,165 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,165 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,165 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,165 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:38,166 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:40:38,177 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-25 04:40:38,188 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:40:38,188 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:40:38,189 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:40:38,189 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:40:38,189 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:40:38,189 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:40:38,189 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:40:38,189 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:40:38,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 115 transitions, 250 flow [2021-03-25 04:40:38,219 INFO L129 PetriNetUnfolder]: 2/111 cut-off events. [2021-03-25 04:40:38,219 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:40:38,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-03-25 04:40:38,221 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 115 transitions, 250 flow [2021-03-25 04:40:38,224 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 111 transitions, 234 flow [2021-03-25 04:40:38,225 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:38,229 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 111 transitions, 234 flow [2021-03-25 04:40:38,231 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 111 transitions, 234 flow [2021-03-25 04:40:38,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 122 places, 111 transitions, 234 flow [2021-03-25 04:40:38,245 INFO L129 PetriNetUnfolder]: 2/111 cut-off events. [2021-03-25 04:40:38,245 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:40:38,246 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 111 events. 2/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-03-25 04:40:38,247 INFO L142 LiptonReduction]: Number of co-enabled transitions 2630 [2021-03-25 04:40:39,558 WARN L205 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-03-25 04:40:40,073 WARN L205 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-03-25 04:40:41,238 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 314 DAG size of output: 269 [2021-03-25 04:40:41,750 WARN L205 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-03-25 04:40:41,998 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:40:42,341 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2021-03-25 04:40:42,453 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-25 04:40:43,321 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:40:43,574 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:40:44,179 WARN L205 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-25 04:40:44,747 WARN L205 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-25 04:40:45,351 INFO L154 LiptonReduction]: Checked pairs total: 5123 [2021-03-25 04:40:45,351 INFO L156 LiptonReduction]: Total number of compositions: 75 [2021-03-25 04:40:45,353 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7128 [2021-03-25 04:40:45,358 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-25 04:40:45,358 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:40:45,358 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:45,358 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:45,359 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 04:40:45,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:45,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1005604732, now seen corresponding path program 1 times [2021-03-25 04:40:45,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:45,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274571068] [2021-03-25 04:40:45,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:45,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:45,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:45,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:45,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:45,507 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 04:40:45,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274571068] [2021-03-25 04:40:45,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:45,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:40:45,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463876967] [2021-03-25 04:40:45,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:40:45,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:45,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:40:45,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:40:45,522 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 190 [2021-03-25 04:40:45,524 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 100 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 04:40:45,524 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:45,524 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 190 [2021-03-25 04:40:45,525 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:45,584 INFO L129 PetriNetUnfolder]: 69/214 cut-off events. [2021-03-25 04:40:45,584 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:40:45,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 214 events. 69/214 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1046 event pairs, 39 based on Foata normal form. 10/202 useless extension candidates. Maximal degree in co-relation 327. Up to 89 conditions per place. [2021-03-25 04:40:45,586 INFO L132 encePairwiseOnDemand]: 186/190 looper letters, 9 selfloop transitions, 2 changer transitions 6/46 dead transitions. [2021-03-25 04:40:45,586 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 46 transitions, 130 flow [2021-03-25 04:40:45,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:40:45,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:40:45,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 517 transitions. [2021-03-25 04:40:45,602 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9070175438596492 [2021-03-25 04:40:45,602 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 517 transitions. [2021-03-25 04:40:45,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 517 transitions. [2021-03-25 04:40:45,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:45,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 517 transitions. [2021-03-25 04:40:45,610 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 04:40:45,615 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 04:40:45,616 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 04:40:45,617 INFO L185 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 517 transitions. [2021-03-25 04:40:45,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 46 transitions, 130 flow [2021-03-25 04:40:45,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 46 transitions, 126 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 04:40:45,620 INFO L241 Difference]: Finished difference. Result has 52 places, 36 transitions, 84 flow [2021-03-25 04:40:45,621 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=52, PETRI_TRANSITIONS=36} [2021-03-25 04:40:45,622 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, -4 predicate places. [2021-03-25 04:40:45,622 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:45,622 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 36 transitions, 84 flow [2021-03-25 04:40:45,625 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 36 transitions, 84 flow [2021-03-25 04:40:45,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 36 transitions, 84 flow [2021-03-25 04:40:45,631 INFO L129 PetriNetUnfolder]: 0/36 cut-off events. [2021-03-25 04:40:45,631 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:40:45,634 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 36 events. 0/36 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. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 04:40:45,635 INFO L142 LiptonReduction]: Number of co-enabled transitions 434 [2021-03-25 04:40:46,161 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-03-25 04:40:46,424 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-03-25 04:40:46,992 WARN L205 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-03-25 04:40:47,545 WARN L205 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-03-25 04:40:48,280 INFO L154 LiptonReduction]: Checked pairs total: 2040 [2021-03-25 04:40:48,280 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-25 04:40:48,280 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2658 [2021-03-25 04:40:48,281 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 70 flow [2021-03-25 04:40:48,282 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 04:40:48,282 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:48,282 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 04:40:48,282 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 04:40:48,282 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 04:40:48,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:48,285 INFO L82 PathProgramCache]: Analyzing trace with hash -614472852, now seen corresponding path program 1 times [2021-03-25 04:40:48,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:48,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679850811] [2021-03-25 04:40:48,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:48,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:48,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:48,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:48,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:40:48,464 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 04:40:48,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679850811] [2021-03-25 04:40:48,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:48,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:40:48,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171401097] [2021-03-25 04:40:48,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:40:48,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:48,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:40:48,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:40:48,467 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 197 [2021-03-25 04:40:48,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 169.75) internal successors, (679), 4 states have internal predecessors, (679), 0 states have call successors, (0), 0 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 04:40:48,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:48,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 197 [2021-03-25 04:40:48,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:48,492 INFO L129 PetriNetUnfolder]: 3/41 cut-off events. [2021-03-25 04:40:48,492 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:40:48,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 41 events. 3/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 83 event pairs, 1 based on Foata normal form. 1/39 useless extension candidates. Maximal degree in co-relation 54. Up to 10 conditions per place. [2021-03-25 04:40:48,494 INFO L132 encePairwiseOnDemand]: 193/197 looper letters, 3 selfloop transitions, 3 changer transitions 0/31 dead transitions. [2021-03-25 04:40:48,494 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 31 transitions, 86 flow [2021-03-25 04:40:48,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:40:48,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:40:48,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 514 transitions. [2021-03-25 04:40:48,495 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8697123519458545 [2021-03-25 04:40:48,495 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 514 transitions. [2021-03-25 04:40:48,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 514 transitions. [2021-03-25 04:40:48,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:48,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 514 transitions. [2021-03-25 04:40:48,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 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 04:40:48,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 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 04:40:48,499 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 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 04:40:48,499 INFO L185 Difference]: Start difference. First operand has 40 places, 29 transitions, 70 flow. Second operand 3 states and 514 transitions. [2021-03-25 04:40:48,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 31 transitions, 86 flow [2021-03-25 04:40:48,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 31 transitions, 82 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:40:48,500 INFO L241 Difference]: Finished difference. Result has 41 places, 31 transitions, 85 flow [2021-03-25 04:40:48,500 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2021-03-25 04:40:48,500 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, -15 predicate places. [2021-03-25 04:40:48,500 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:48,501 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 31 transitions, 85 flow [2021-03-25 04:40:48,501 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 31 transitions, 85 flow [2021-03-25 04:40:48,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 31 transitions, 85 flow [2021-03-25 04:40:48,505 INFO L129 PetriNetUnfolder]: 3/41 cut-off events. [2021-03-25 04:40:48,505 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:40:48,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 41 events. 3/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 95 event pairs, 1 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 55. Up to 10 conditions per place. [2021-03-25 04:40:48,512 INFO L142 LiptonReduction]: Number of co-enabled transitions 460 [2021-03-25 04:40:48,812 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-03-25 04:40:48,950 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-03-25 04:40:49,252 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-03-25 04:40:49,390 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-03-25 04:40:49,394 INFO L154 LiptonReduction]: Checked pairs total: 928 [2021-03-25 04:40:49,394 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:40:49,394 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 894 [2021-03-25 04:40:49,395 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 83 flow [2021-03-25 04:40:49,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 169.75) internal successors, (679), 4 states have internal predecessors, (679), 0 states have call successors, (0), 0 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 04:40:49,395 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:49,395 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:49,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 04:40:49,395 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 04:40:49,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:49,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1121457683, now seen corresponding path program 1 times [2021-03-25 04:40:49,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:49,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228051847] [2021-03-25 04:40:49,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:49,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:49,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:49,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:49,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:49,500 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 04:40:49,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228051847] [2021-03-25 04:40:49,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:49,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:40:49,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211625634] [2021-03-25 04:40:49,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:40:49,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:49,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:40:49,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:40:49,501 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 198 [2021-03-25 04:40:49,502 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 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 04:40:49,502 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:49,502 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 198 [2021-03-25 04:40:49,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:49,534 INFO L129 PetriNetUnfolder]: 19/91 cut-off events. [2021-03-25 04:40:49,534 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2021-03-25 04:40:49,535 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 91 events. 19/91 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 354 event pairs, 9 based on Foata normal form. 1/80 useless extension candidates. Maximal degree in co-relation 154. Up to 35 conditions per place. [2021-03-25 04:40:49,535 INFO L132 encePairwiseOnDemand]: 194/198 looper letters, 4 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2021-03-25 04:40:49,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 32 transitions, 101 flow [2021-03-25 04:40:49,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:40:49,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:40:49,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 533 transitions. [2021-03-25 04:40:49,537 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8973063973063973 [2021-03-25 04:40:49,537 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 533 transitions. [2021-03-25 04:40:49,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 533 transitions. [2021-03-25 04:40:49,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:49,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 533 transitions. [2021-03-25 04:40:49,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.66666666666666) internal successors, (533), 3 states have internal predecessors, (533), 0 states have call successors, (0), 0 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 04:40:49,539 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 04:40:49,539 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 04:40:49,539 INFO L185 Difference]: Start difference. First operand has 40 places, 30 transitions, 83 flow. Second operand 3 states and 533 transitions. [2021-03-25 04:40:49,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 32 transitions, 101 flow [2021-03-25 04:40:49,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 32 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:40:49,540 INFO L241 Difference]: Finished difference. Result has 42 places, 32 transitions, 99 flow [2021-03-25 04:40:49,541 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2021-03-25 04:40:49,541 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, -14 predicate places. [2021-03-25 04:40:49,541 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:49,541 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 32 transitions, 99 flow [2021-03-25 04:40:49,554 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 32 transitions, 99 flow [2021-03-25 04:40:49,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 32 transitions, 99 flow [2021-03-25 04:40:49,560 INFO L129 PetriNetUnfolder]: 10/69 cut-off events. [2021-03-25 04:40:49,560 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-03-25 04:40:49,560 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 69 events. 10/69 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 236 event pairs, 4 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 109. Up to 18 conditions per place. [2021-03-25 04:40:49,561 INFO L142 LiptonReduction]: Number of co-enabled transitions 502 [2021-03-25 04:40:49,563 INFO L154 LiptonReduction]: Checked pairs total: 450 [2021-03-25 04:40:49,563 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:49,563 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-03-25 04:40:49,564 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 99 flow [2021-03-25 04:40:49,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 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 04:40:49,564 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:49,564 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:49,564 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 04:40:49,564 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 04:40:49,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:49,565 INFO L82 PathProgramCache]: Analyzing trace with hash -390570208, now seen corresponding path program 1 times [2021-03-25 04:40:49,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:49,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581351237] [2021-03-25 04:40:49,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:49,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:49,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:49,643 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 04:40:49,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581351237] [2021-03-25 04:40:49,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:49,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:40:49,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536822578] [2021-03-25 04:40:49,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:40:49,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:49,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:40:49,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:40:49,645 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 198 [2021-03-25 04:40:49,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 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 04:40:49,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:49,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 198 [2021-03-25 04:40:49,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:49,655 INFO L129 PetriNetUnfolder]: 8/56 cut-off events. [2021-03-25 04:40:49,655 INFO L130 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2021-03-25 04:40:49,655 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 56 events. 8/56 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 151 event pairs, 2 based on Foata normal form. 2/53 useless extension candidates. Maximal degree in co-relation 96. Up to 15 conditions per place. [2021-03-25 04:40:49,656 INFO L132 encePairwiseOnDemand]: 195/198 looper letters, 1 selfloop transitions, 2 changer transitions 0/32 dead transitions. [2021-03-25 04:40:49,656 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 32 transitions, 105 flow [2021-03-25 04:40:49,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:40:49,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:40:49,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 532 transitions. [2021-03-25 04:40:49,657 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8956228956228957 [2021-03-25 04:40:49,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 532 transitions. [2021-03-25 04:40:49,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 532 transitions. [2021-03-25 04:40:49,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:49,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 532 transitions. [2021-03-25 04:40:49,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 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 04:40:49,659 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 04:40:49,660 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 04:40:49,660 INFO L185 Difference]: Start difference. First operand has 42 places, 32 transitions, 99 flow. Second operand 3 states and 532 transitions. [2021-03-25 04:40:49,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 32 transitions, 105 flow [2021-03-25 04:40:49,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 32 transitions, 102 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:40:49,661 INFO L241 Difference]: Finished difference. Result has 44 places, 32 transitions, 104 flow [2021-03-25 04:40:49,661 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2021-03-25 04:40:49,661 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, -12 predicate places. [2021-03-25 04:40:49,661 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:49,661 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 32 transitions, 104 flow [2021-03-25 04:40:49,661 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 32 transitions, 104 flow [2021-03-25 04:40:49,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 32 transitions, 104 flow [2021-03-25 04:40:49,666 INFO L129 PetriNetUnfolder]: 6/53 cut-off events. [2021-03-25 04:40:49,666 INFO L130 PetriNetUnfolder]: For 21/24 co-relation queries the response was YES. [2021-03-25 04:40:49,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 53 events. 6/53 cut-off events. For 21/24 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 170 event pairs, 3 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 89. Up to 13 conditions per place. [2021-03-25 04:40:49,667 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-25 04:40:49,669 INFO L154 LiptonReduction]: Checked pairs total: 405 [2021-03-25 04:40:49,669 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:49,669 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-25 04:40:49,669 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 104 flow [2021-03-25 04:40:49,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 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 04:40:49,670 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:49,670 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:49,670 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 04:40:49,670 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 04:40:49,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:49,670 INFO L82 PathProgramCache]: Analyzing trace with hash -775681961, now seen corresponding path program 1 times [2021-03-25 04:40:49,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:49,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367026841] [2021-03-25 04:40:49,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:49,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:49,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:40:49,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:49,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:40:49,777 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 04:40:49,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367026841] [2021-03-25 04:40:49,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:49,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:40:49,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671977892] [2021-03-25 04:40:49,778 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:40:49,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:49,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:40:49,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:40:49,779 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 198 [2021-03-25 04:40:49,779 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 157.75) internal successors, (631), 4 states have internal predecessors, (631), 0 states have call successors, (0), 0 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 04:40:49,779 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:49,779 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 198 [2021-03-25 04:40:49,779 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:49,893 INFO L129 PetriNetUnfolder]: 224/439 cut-off events. [2021-03-25 04:40:49,893 INFO L130 PetriNetUnfolder]: For 291/330 co-relation queries the response was YES. [2021-03-25 04:40:49,895 INFO L84 FinitePrefix]: Finished finitePrefix Result has 992 conditions, 439 events. 224/439 cut-off events. For 291/330 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2353 event pairs, 137 based on Foata normal form. 3/385 useless extension candidates. Maximal degree in co-relation 978. Up to 288 conditions per place. [2021-03-25 04:40:49,897 INFO L132 encePairwiseOnDemand]: 194/198 looper letters, 9 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2021-03-25 04:40:49,897 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 36 transitions, 136 flow [2021-03-25 04:40:49,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:40:49,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:40:49,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 484 transitions. [2021-03-25 04:40:49,899 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8148148148148148 [2021-03-25 04:40:49,899 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 484 transitions. [2021-03-25 04:40:49,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 484 transitions. [2021-03-25 04:40:49,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:49,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 484 transitions. [2021-03-25 04:40:49,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 0 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 04:40:49,901 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 04:40:49,901 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 04:40:49,902 INFO L185 Difference]: Start difference. First operand has 44 places, 32 transitions, 104 flow. Second operand 3 states and 484 transitions. [2021-03-25 04:40:49,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 36 transitions, 136 flow [2021-03-25 04:40:49,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 36 transitions, 132 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:40:49,905 INFO L241 Difference]: Finished difference. Result has 45 places, 34 transitions, 119 flow [2021-03-25 04:40:49,905 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=45, PETRI_TRANSITIONS=34} [2021-03-25 04:40:49,905 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, -11 predicate places. [2021-03-25 04:40:49,905 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:49,906 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 34 transitions, 119 flow [2021-03-25 04:40:49,906 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 34 transitions, 119 flow [2021-03-25 04:40:49,906 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 34 transitions, 119 flow [2021-03-25 04:40:49,919 INFO L129 PetriNetUnfolder]: 18/86 cut-off events. [2021-03-25 04:40:49,919 INFO L130 PetriNetUnfolder]: For 80/98 co-relation queries the response was YES. [2021-03-25 04:40:49,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 86 events. 18/86 cut-off events. For 80/98 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 369 event pairs, 7 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 175. Up to 27 conditions per place. [2021-03-25 04:40:49,921 INFO L142 LiptonReduction]: Number of co-enabled transitions 546 [2021-03-25 04:40:49,923 INFO L154 LiptonReduction]: Checked pairs total: 411 [2021-03-25 04:40:49,924 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:49,924 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-25 04:40:49,927 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 34 transitions, 119 flow [2021-03-25 04:40:49,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 157.75) internal successors, (631), 4 states have internal predecessors, (631), 0 states have call successors, (0), 0 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 04:40:49,928 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:49,928 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:49,928 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 04:40:49,928 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 04:40:49,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:49,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1905807429, now seen corresponding path program 1 times [2021-03-25 04:40:49,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:49,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160992791] [2021-03-25 04:40:49,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:50,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:50,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:40:50,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:50,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:40:50,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:50,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:40:50,030 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 04:40:50,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160992791] [2021-03-25 04:40:50,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:50,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:40:50,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027888978] [2021-03-25 04:40:50,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:40:50,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:50,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:40:50,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:40:50,033 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 198 [2021-03-25 04:40:50,033 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 34 transitions, 119 flow. Second operand has 5 states, 5 states have (on average 155.8) internal successors, (779), 5 states have internal predecessors, (779), 0 states have call successors, (0), 0 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 04:40:50,034 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:50,034 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 198 [2021-03-25 04:40:50,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:50,125 INFO L129 PetriNetUnfolder]: 198/379 cut-off events. [2021-03-25 04:40:50,125 INFO L130 PetriNetUnfolder]: For 516/610 co-relation queries the response was YES. [2021-03-25 04:40:50,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 967 conditions, 379 events. 198/379 cut-off events. For 516/610 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1910 event pairs, 67 based on Foata normal form. 11/335 useless extension candidates. Maximal degree in co-relation 952. Up to 232 conditions per place. [2021-03-25 04:40:50,128 INFO L132 encePairwiseOnDemand]: 194/198 looper letters, 11 selfloop transitions, 4 changer transitions 0/39 dead transitions. [2021-03-25 04:40:50,129 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 39 transitions, 159 flow [2021-03-25 04:40:50,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:40:50,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:40:50,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 636 transitions. [2021-03-25 04:40:50,130 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.803030303030303 [2021-03-25 04:40:50,130 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 636 transitions. [2021-03-25 04:40:50,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 636 transitions. [2021-03-25 04:40:50,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:50,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 636 transitions. [2021-03-25 04:40:50,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 0 states have call successors, (0), 0 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 04:40:50,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 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 04:40:50,134 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 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 04:40:50,134 INFO L185 Difference]: Start difference. First operand has 45 places, 34 transitions, 119 flow. Second operand 4 states and 636 transitions. [2021-03-25 04:40:50,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 39 transitions, 159 flow [2021-03-25 04:40:50,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 39 transitions, 156 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:40:50,136 INFO L241 Difference]: Finished difference. Result has 48 places, 34 transitions, 128 flow [2021-03-25 04:40:50,137 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=128, PETRI_PLACES=48, PETRI_TRANSITIONS=34} [2021-03-25 04:40:50,137 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, -8 predicate places. [2021-03-25 04:40:50,137 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:50,137 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 34 transitions, 128 flow [2021-03-25 04:40:50,137 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 34 transitions, 128 flow [2021-03-25 04:40:50,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 34 transitions, 128 flow [2021-03-25 04:40:50,144 INFO L129 PetriNetUnfolder]: 16/82 cut-off events. [2021-03-25 04:40:50,144 INFO L130 PetriNetUnfolder]: For 117/139 co-relation queries the response was YES. [2021-03-25 04:40:50,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 82 events. 16/82 cut-off events. For 117/139 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 334 event pairs, 5 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 175. Up to 25 conditions per place. [2021-03-25 04:40:50,145 INFO L142 LiptonReduction]: Number of co-enabled transitions 546 [2021-03-25 04:40:50,147 INFO L154 LiptonReduction]: Checked pairs total: 411 [2021-03-25 04:40:50,147 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:50,147 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-25 04:40:50,148 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 34 transitions, 128 flow [2021-03-25 04:40:50,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 155.8) internal successors, (779), 5 states have internal predecessors, (779), 0 states have call successors, (0), 0 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 04:40:50,149 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:50,149 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:50,149 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 04:40:50,149 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 04:40:50,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:50,150 INFO L82 PathProgramCache]: Analyzing trace with hash 475361221, now seen corresponding path program 1 times [2021-03-25 04:40:50,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:50,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325244040] [2021-03-25 04:40:50,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:50,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:50,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:40:50,240 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-03-25 04:40:50,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 04:40:50,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:50,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:40:50,264 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 04:40:50,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325244040] [2021-03-25 04:40:50,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:50,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:40:50,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804034465] [2021-03-25 04:40:50,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:40:50,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:50,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:40:50,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:40:50,266 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 198 [2021-03-25 04:40:50,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 34 transitions, 128 flow. Second operand has 5 states, 5 states have (on average 151.8) internal successors, (759), 5 states have internal predecessors, (759), 0 states have call successors, (0), 0 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 04:40:50,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:50,267 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 198 [2021-03-25 04:40:50,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:50,349 INFO L129 PetriNetUnfolder]: 186/381 cut-off events. [2021-03-25 04:40:50,349 INFO L130 PetriNetUnfolder]: For 740/805 co-relation queries the response was YES. [2021-03-25 04:40:50,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1000 conditions, 381 events. 186/381 cut-off events. For 740/805 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2037 event pairs, 106 based on Foata normal form. 7/327 useless extension candidates. Maximal degree in co-relation 983. Up to 249 conditions per place. [2021-03-25 04:40:50,352 INFO L132 encePairwiseOnDemand]: 192/198 looper letters, 10 selfloop transitions, 6 changer transitions 0/40 dead transitions. [2021-03-25 04:40:50,352 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 40 transitions, 174 flow [2021-03-25 04:40:50,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:40:50,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:40:50,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 621 transitions. [2021-03-25 04:40:50,354 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7840909090909091 [2021-03-25 04:40:50,354 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 621 transitions. [2021-03-25 04:40:50,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 621 transitions. [2021-03-25 04:40:50,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:50,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 621 transitions. [2021-03-25 04:40:50,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 155.25) internal successors, (621), 4 states have internal predecessors, (621), 0 states have call successors, (0), 0 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 04:40:50,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 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 04:40:50,357 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 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 04:40:50,357 INFO L185 Difference]: Start difference. First operand has 48 places, 34 transitions, 128 flow. Second operand 4 states and 621 transitions. [2021-03-25 04:40:50,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 40 transitions, 174 flow [2021-03-25 04:40:50,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 40 transitions, 166 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 04:40:50,359 INFO L241 Difference]: Finished difference. Result has 50 places, 37 transitions, 152 flow [2021-03-25 04:40:50,359 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=152, PETRI_PLACES=50, PETRI_TRANSITIONS=37} [2021-03-25 04:40:50,360 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, -6 predicate places. [2021-03-25 04:40:50,360 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:50,360 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 37 transitions, 152 flow [2021-03-25 04:40:50,360 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 37 transitions, 152 flow [2021-03-25 04:40:50,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 37 transitions, 152 flow [2021-03-25 04:40:50,373 INFO L129 PetriNetUnfolder]: 58/150 cut-off events. [2021-03-25 04:40:50,374 INFO L130 PetriNetUnfolder]: For 405/433 co-relation queries the response was YES. [2021-03-25 04:40:50,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 150 events. 58/150 cut-off events. For 405/433 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 714 event pairs, 22 based on Foata normal form. 2/130 useless extension candidates. Maximal degree in co-relation 440. Up to 78 conditions per place. [2021-03-25 04:40:50,375 INFO L142 LiptonReduction]: Number of co-enabled transitions 610 [2021-03-25 04:40:50,378 INFO L154 LiptonReduction]: Checked pairs total: 404 [2021-03-25 04:40:50,378 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:50,378 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-25 04:40:50,381 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 37 transitions, 152 flow [2021-03-25 04:40:50,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 151.8) internal successors, (759), 5 states have internal predecessors, (759), 0 states have call successors, (0), 0 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 04:40:50,382 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:50,382 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:50,382 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 04:40:50,382 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 04:40:50,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:50,382 INFO L82 PathProgramCache]: Analyzing trace with hash -935419579, now seen corresponding path program 1 times [2021-03-25 04:40:50,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:50,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804227298] [2021-03-25 04:40:50,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:50,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:50,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:40:50,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:50,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:40:50,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:50,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:40:50,455 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:50,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:40:50,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:50,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804227298] [2021-03-25 04:40:50,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:50,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:40:50,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343161188] [2021-03-25 04:40:50,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:40:50,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:50,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:40:50,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:40:50,466 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 198 [2021-03-25 04:40:50,467 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 37 transitions, 152 flow. Second operand has 6 states, 6 states have (on average 151.83333333333334) internal successors, (911), 6 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:50,467 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:50,467 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 198 [2021-03-25 04:40:50,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:50,568 INFO L129 PetriNetUnfolder]: 219/436 cut-off events. [2021-03-25 04:40:50,568 INFO L130 PetriNetUnfolder]: For 1180/1447 co-relation queries the response was YES. [2021-03-25 04:40:50,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1287 conditions, 436 events. 219/436 cut-off events. For 1180/1447 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2306 event pairs, 17 based on Foata normal form. 24/399 useless extension candidates. Maximal degree in co-relation 1269. Up to 247 conditions per place. [2021-03-25 04:40:50,572 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 15 selfloop transitions, 7 changer transitions 0/46 dead transitions. [2021-03-25 04:40:50,572 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 46 transitions, 222 flow [2021-03-25 04:40:50,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:40:50,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:40:50,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 775 transitions. [2021-03-25 04:40:50,574 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7828282828282829 [2021-03-25 04:40:50,574 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 775 transitions. [2021-03-25 04:40:50,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 775 transitions. [2021-03-25 04:40:50,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:50,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 775 transitions. [2021-03-25 04:40:50,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 155.0) internal successors, (775), 5 states have internal predecessors, (775), 0 states have call successors, (0), 0 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 04:40:50,577 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 04:40:50,577 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 04:40:50,577 INFO L185 Difference]: Start difference. First operand has 50 places, 37 transitions, 152 flow. Second operand 5 states and 775 transitions. [2021-03-25 04:40:50,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 46 transitions, 222 flow [2021-03-25 04:40:50,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 46 transitions, 212 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 04:40:50,582 INFO L241 Difference]: Finished difference. Result has 53 places, 40 transitions, 178 flow [2021-03-25 04:40:50,582 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=178, PETRI_PLACES=53, PETRI_TRANSITIONS=40} [2021-03-25 04:40:50,582 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2021-03-25 04:40:50,583 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:50,583 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 40 transitions, 178 flow [2021-03-25 04:40:50,583 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 40 transitions, 178 flow [2021-03-25 04:40:50,583 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 40 transitions, 178 flow [2021-03-25 04:40:50,605 INFO L129 PetriNetUnfolder]: 111/250 cut-off events. [2021-03-25 04:40:50,605 INFO L130 PetriNetUnfolder]: For 761/814 co-relation queries the response was YES. [2021-03-25 04:40:50,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 809 conditions, 250 events. 111/250 cut-off events. For 761/814 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1367 event pairs, 43 based on Foata normal form. 3/226 useless extension candidates. Maximal degree in co-relation 792. Up to 125 conditions per place. [2021-03-25 04:40:50,607 INFO L142 LiptonReduction]: Number of co-enabled transitions 672 [2021-03-25 04:40:50,614 INFO L154 LiptonReduction]: Checked pairs total: 370 [2021-03-25 04:40:50,614 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:50,614 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-25 04:40:50,615 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 40 transitions, 178 flow [2021-03-25 04:40:50,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 151.83333333333334) internal successors, (911), 6 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:50,615 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:50,615 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:50,615 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 04:40:50,615 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 04:40:50,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:50,615 INFO L82 PathProgramCache]: Analyzing trace with hash 713209309, now seen corresponding path program 2 times [2021-03-25 04:40:50,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:50,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697858642] [2021-03-25 04:40:50,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:50,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:50,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:40:50,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:50,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:40:50,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:50,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:40:50,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:50,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:40:50,675 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 04:40:50,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697858642] [2021-03-25 04:40:50,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:50,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:40:50,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931350104] [2021-03-25 04:40:50,676 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:40:50,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:50,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:40:50,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:40:50,677 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 198 [2021-03-25 04:40:50,677 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 40 transitions, 178 flow. Second operand has 6 states, 6 states have (on average 151.83333333333334) internal successors, (911), 6 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:50,678 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:50,678 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 198 [2021-03-25 04:40:50,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:50,788 INFO L129 PetriNetUnfolder]: 233/472 cut-off events. [2021-03-25 04:40:50,788 INFO L130 PetriNetUnfolder]: For 1434/1818 co-relation queries the response was YES. [2021-03-25 04:40:50,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1616 conditions, 472 events. 233/472 cut-off events. For 1434/1818 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2607 event pairs, 19 based on Foata normal form. 31/448 useless extension candidates. Maximal degree in co-relation 1597. Up to 238 conditions per place. [2021-03-25 04:40:50,792 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 13 selfloop transitions, 12 changer transitions 0/49 dead transitions. [2021-03-25 04:40:50,792 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 49 transitions, 266 flow [2021-03-25 04:40:50,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:40:50,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:40:50,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 926 transitions. [2021-03-25 04:40:50,794 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7794612794612794 [2021-03-25 04:40:50,794 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 926 transitions. [2021-03-25 04:40:50,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 926 transitions. [2021-03-25 04:40:50,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:50,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 926 transitions. [2021-03-25 04:40:50,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 154.33333333333334) internal successors, (926), 6 states have internal predecessors, (926), 0 states have call successors, (0), 0 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 04:40:50,797 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 04:40:50,798 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 04:40:50,799 INFO L185 Difference]: Start difference. First operand has 53 places, 40 transitions, 178 flow. Second operand 6 states and 926 transitions. [2021-03-25 04:40:50,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 49 transitions, 266 flow [2021-03-25 04:40:50,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 49 transitions, 252 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-03-25 04:40:50,801 INFO L241 Difference]: Finished difference. Result has 56 places, 43 transitions, 221 flow [2021-03-25 04:40:50,801 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=221, PETRI_PLACES=56, PETRI_TRANSITIONS=43} [2021-03-25 04:40:50,801 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 0 predicate places. [2021-03-25 04:40:50,801 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:50,801 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 43 transitions, 221 flow [2021-03-25 04:40:50,802 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 43 transitions, 221 flow [2021-03-25 04:40:50,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 43 transitions, 221 flow [2021-03-25 04:40:50,846 INFO L129 PetriNetUnfolder]: 112/261 cut-off events. [2021-03-25 04:40:50,846 INFO L130 PetriNetUnfolder]: For 964/1062 co-relation queries the response was YES. [2021-03-25 04:40:50,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 994 conditions, 261 events. 112/261 cut-off events. For 964/1062 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1413 event pairs, 30 based on Foata normal form. 8/243 useless extension candidates. Maximal degree in co-relation 976. Up to 139 conditions per place. [2021-03-25 04:40:50,849 INFO L142 LiptonReduction]: Number of co-enabled transitions 742 [2021-03-25 04:40:50,859 INFO L154 LiptonReduction]: Checked pairs total: 496 [2021-03-25 04:40:50,859 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:50,859 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-03-25 04:40:50,860 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 43 transitions, 221 flow [2021-03-25 04:40:50,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 151.83333333333334) internal successors, (911), 6 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:50,861 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:50,861 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:50,861 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 04:40:50,861 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 04:40:50,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:50,861 INFO L82 PathProgramCache]: Analyzing trace with hash 704333836, now seen corresponding path program 1 times [2021-03-25 04:40:50,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:50,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283192692] [2021-03-25 04:40:50,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:50,926 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-25 04:40:50,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 04:40:50,944 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-25 04:40:50,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 04:40:50,966 INFO L142 QuantifierPusher]: treesize reduction 11, result has 87.4 percent of original size [2021-03-25 04:40:50,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-25 04:40:50,997 INFO L142 QuantifierPusher]: treesize reduction 26, result has 58.7 percent of original size [2021-03-25 04:40:51,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 04:40:51,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:51,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 04:40:51,038 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 04:40:51,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283192692] [2021-03-25 04:40:51,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:51,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:40:51,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351139715] [2021-03-25 04:40:51,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:40:51,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:51,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:40:51,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:40:51,040 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 198 [2021-03-25 04:40:51,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 43 transitions, 221 flow. Second operand has 7 states, 7 states have (on average 148.85714285714286) internal successors, (1042), 7 states have internal predecessors, (1042), 0 states have call successors, (0), 0 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 04:40:51,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:51,040 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 198 [2021-03-25 04:40:51,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:51,178 INFO L129 PetriNetUnfolder]: 267/538 cut-off events. [2021-03-25 04:40:51,178 INFO L130 PetriNetUnfolder]: For 2211/2981 co-relation queries the response was YES. [2021-03-25 04:40:51,180 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2161 conditions, 538 events. 267/538 cut-off events. For 2211/2981 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3041 event pairs, 39 based on Foata normal form. 35/521 useless extension candidates. Maximal degree in co-relation 2141. Up to 325 conditions per place. [2021-03-25 04:40:51,183 INFO L132 encePairwiseOnDemand]: 190/198 looper letters, 20 selfloop transitions, 12 changer transitions 0/56 dead transitions. [2021-03-25 04:40:51,184 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 56 transitions, 365 flow [2021-03-25 04:40:51,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:40:51,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:40:51,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 761 transitions. [2021-03-25 04:40:51,185 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7686868686868686 [2021-03-25 04:40:51,186 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 761 transitions. [2021-03-25 04:40:51,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 761 transitions. [2021-03-25 04:40:51,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:51,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 761 transitions. [2021-03-25 04:40:51,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 152.2) internal successors, (761), 5 states have internal predecessors, (761), 0 states have call successors, (0), 0 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 04:40:51,188 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 04:40:51,188 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 04:40:51,189 INFO L185 Difference]: Start difference. First operand has 56 places, 43 transitions, 221 flow. Second operand 5 states and 761 transitions. [2021-03-25 04:40:51,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 56 transitions, 365 flow [2021-03-25 04:40:51,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 56 transitions, 334 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-03-25 04:40:51,192 INFO L241 Difference]: Finished difference. Result has 59 places, 51 transitions, 299 flow [2021-03-25 04:40:51,193 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=299, PETRI_PLACES=59, PETRI_TRANSITIONS=51} [2021-03-25 04:40:51,193 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 3 predicate places. [2021-03-25 04:40:51,193 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:51,193 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 51 transitions, 299 flow [2021-03-25 04:40:51,193 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 51 transitions, 299 flow [2021-03-25 04:40:51,194 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 51 transitions, 299 flow [2021-03-25 04:40:51,224 INFO L129 PetriNetUnfolder]: 124/299 cut-off events. [2021-03-25 04:40:51,224 INFO L130 PetriNetUnfolder]: For 1259/1325 co-relation queries the response was YES. [2021-03-25 04:40:51,225 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1204 conditions, 299 events. 124/299 cut-off events. For 1259/1325 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1730 event pairs, 38 based on Foata normal form. 12/275 useless extension candidates. Maximal degree in co-relation 1184. Up to 155 conditions per place. [2021-03-25 04:40:51,227 INFO L142 LiptonReduction]: Number of co-enabled transitions 882 [2021-03-25 04:40:51,240 INFO L154 LiptonReduction]: Checked pairs total: 498 [2021-03-25 04:40:51,240 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:51,240 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-03-25 04:40:51,242 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 299 flow [2021-03-25 04:40:51,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 148.85714285714286) internal successors, (1042), 7 states have internal predecessors, (1042), 0 states have call successors, (0), 0 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 04:40:51,242 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:51,242 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:51,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 04:40:51,242 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 04:40:51,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:51,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1828078964, now seen corresponding path program 2 times [2021-03-25 04:40:51,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:51,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542007164] [2021-03-25 04:40:51,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:51,298 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-25 04:40:51,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 04:40:51,318 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 04:40:51,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 04:40:51,344 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-25 04:40:51,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 04:40:51,367 INFO L142 QuantifierPusher]: treesize reduction 11, result has 87.4 percent of original size [2021-03-25 04:40:51,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-25 04:40:51,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:51,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:40:51,407 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 04:40:51,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542007164] [2021-03-25 04:40:51,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:51,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:40:51,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329096654] [2021-03-25 04:40:51,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:40:51,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:51,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:40:51,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:40:51,409 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 198 [2021-03-25 04:40:51,410 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 51 transitions, 299 flow. Second operand has 7 states, 7 states have (on average 148.85714285714286) internal successors, (1042), 7 states have internal predecessors, (1042), 0 states have call successors, (0), 0 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 04:40:51,410 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:51,410 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 198 [2021-03-25 04:40:51,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:51,534 INFO L129 PetriNetUnfolder]: 271/560 cut-off events. [2021-03-25 04:40:51,534 INFO L130 PetriNetUnfolder]: For 2556/3654 co-relation queries the response was YES. [2021-03-25 04:40:51,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2417 conditions, 560 events. 271/560 cut-off events. For 2556/3654 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3210 event pairs, 31 based on Foata normal form. 61/563 useless extension candidates. Maximal degree in co-relation 2395. Up to 309 conditions per place. [2021-03-25 04:40:51,539 INFO L132 encePairwiseOnDemand]: 192/198 looper letters, 22 selfloop transitions, 13 changer transitions 0/59 dead transitions. [2021-03-25 04:40:51,539 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 59 transitions, 425 flow [2021-03-25 04:40:51,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:40:51,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:40:51,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 760 transitions. [2021-03-25 04:40:51,541 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7676767676767676 [2021-03-25 04:40:51,541 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 760 transitions. [2021-03-25 04:40:51,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 760 transitions. [2021-03-25 04:40:51,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:51,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 760 transitions. [2021-03-25 04:40:51,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 152.0) internal successors, (760), 5 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 04:40:51,543 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 04:40:51,544 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 04:40:51,544 INFO L185 Difference]: Start difference. First operand has 59 places, 51 transitions, 299 flow. Second operand 5 states and 760 transitions. [2021-03-25 04:40:51,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 59 transitions, 425 flow [2021-03-25 04:40:51,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 59 transitions, 408 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-03-25 04:40:51,547 INFO L241 Difference]: Finished difference. Result has 63 places, 53 transitions, 342 flow [2021-03-25 04:40:51,547 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=342, PETRI_PLACES=63, PETRI_TRANSITIONS=53} [2021-03-25 04:40:51,547 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 7 predicate places. [2021-03-25 04:40:51,547 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:51,547 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 53 transitions, 342 flow [2021-03-25 04:40:51,548 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 53 transitions, 342 flow [2021-03-25 04:40:51,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 53 transitions, 342 flow [2021-03-25 04:40:51,575 INFO L129 PetriNetUnfolder]: 121/302 cut-off events. [2021-03-25 04:40:51,575 INFO L130 PetriNetUnfolder]: For 1618/1701 co-relation queries the response was YES. [2021-03-25 04:40:51,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1292 conditions, 302 events. 121/302 cut-off events. For 1618/1701 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1722 event pairs, 33 based on Foata normal form. 15/283 useless extension candidates. Maximal degree in co-relation 1270. Up to 148 conditions per place. [2021-03-25 04:40:51,578 INFO L142 LiptonReduction]: Number of co-enabled transitions 914 [2021-03-25 04:40:51,591 INFO L154 LiptonReduction]: Checked pairs total: 518 [2021-03-25 04:40:51,591 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:51,591 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-03-25 04:40:51,591 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 53 transitions, 342 flow [2021-03-25 04:40:51,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 148.85714285714286) internal successors, (1042), 7 states have internal predecessors, (1042), 0 states have call successors, (0), 0 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 04:40:51,592 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:51,592 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:51,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 04:40:51,592 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 04:40:51,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:51,592 INFO L82 PathProgramCache]: Analyzing trace with hash -174689120, now seen corresponding path program 1 times [2021-03-25 04:40:51,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:51,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605373548] [2021-03-25 04:40:51,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:51,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:51,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:51,627 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:40:51,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:40:51,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:51,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:51,632 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 04:40:51,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605373548] [2021-03-25 04:40:51,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:51,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:40:51,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287928461] [2021-03-25 04:40:51,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:40:51,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:51,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:40:51,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:40:51,634 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-03-25 04:40:51,634 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 53 transitions, 342 flow. Second operand has 4 states, 4 states have (on average 161.75) internal successors, (647), 4 states have internal predecessors, (647), 0 states have call successors, (0), 0 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 04:40:51,634 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:51,634 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-03-25 04:40:51,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:51,828 INFO L129 PetriNetUnfolder]: 848/1610 cut-off events. [2021-03-25 04:40:51,828 INFO L130 PetriNetUnfolder]: For 5802/6452 co-relation queries the response was YES. [2021-03-25 04:40:51,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5168 conditions, 1610 events. 848/1610 cut-off events. For 5802/6452 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 11622 event pairs, 289 based on Foata normal form. 184/1481 useless extension candidates. Maximal degree in co-relation 5144. Up to 872 conditions per place. [2021-03-25 04:40:51,840 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 13 selfloop transitions, 10 changer transitions 0/67 dead transitions. [2021-03-25 04:40:51,840 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 67 transitions, 416 flow [2021-03-25 04:40:51,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:40:51,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:40:51,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 829 transitions. [2021-03-25 04:40:51,842 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8373737373737373 [2021-03-25 04:40:51,842 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 829 transitions. [2021-03-25 04:40:51,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 829 transitions. [2021-03-25 04:40:51,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:51,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 829 transitions. [2021-03-25 04:40:51,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 165.8) internal successors, (829), 5 states have internal predecessors, (829), 0 states have call successors, (0), 0 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 04:40:51,845 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 04:40:51,845 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 04:40:51,845 INFO L185 Difference]: Start difference. First operand has 63 places, 53 transitions, 342 flow. Second operand 5 states and 829 transitions. [2021-03-25 04:40:51,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 67 transitions, 416 flow [2021-03-25 04:40:51,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 67 transitions, 390 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-03-25 04:40:51,851 INFO L241 Difference]: Finished difference. Result has 67 places, 62 transitions, 395 flow [2021-03-25 04:40:51,851 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=395, PETRI_PLACES=67, PETRI_TRANSITIONS=62} [2021-03-25 04:40:51,851 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 11 predicate places. [2021-03-25 04:40:51,851 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:51,851 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 62 transitions, 395 flow [2021-03-25 04:40:51,851 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 62 transitions, 395 flow [2021-03-25 04:40:51,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 62 transitions, 395 flow [2021-03-25 04:40:51,946 INFO L129 PetriNetUnfolder]: 632/1167 cut-off events. [2021-03-25 04:40:51,946 INFO L130 PetriNetUnfolder]: For 4474/4927 co-relation queries the response was YES. [2021-03-25 04:40:51,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4491 conditions, 1167 events. 632/1167 cut-off events. For 4474/4927 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 8005 event pairs, 261 based on Foata normal form. 41/1001 useless extension candidates. Maximal degree in co-relation 4466. Up to 633 conditions per place. [2021-03-25 04:40:51,960 INFO L142 LiptonReduction]: Number of co-enabled transitions 1300 [2021-03-25 04:40:52,128 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-25 04:40:52,454 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 80 [2021-03-25 04:40:52,570 INFO L154 LiptonReduction]: Checked pairs total: 567 [2021-03-25 04:40:52,570 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:40:52,570 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 719 [2021-03-25 04:40:52,571 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 62 transitions, 400 flow [2021-03-25 04:40:52,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 161.75) internal successors, (647), 4 states have internal predecessors, (647), 0 states have call successors, (0), 0 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 04:40:52,572 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:52,572 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 04:40:52,572 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 04:40:52,572 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 04:40:52,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:52,572 INFO L82 PathProgramCache]: Analyzing trace with hash -704352153, now seen corresponding path program 1 times [2021-03-25 04:40:52,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:52,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609013690] [2021-03-25 04:40:52,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:52,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:52,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:52,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:52,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:52,607 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:40:52,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:40:52,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:52,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:52,613 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 04:40:52,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609013690] [2021-03-25 04:40:52,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:52,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:40:52,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839136520] [2021-03-25 04:40:52,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:40:52,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:52,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:40:52,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:40:52,615 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 199 [2021-03-25 04:40:52,615 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 62 transitions, 400 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 04:40:52,615 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:52,615 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 199 [2021-03-25 04:40:52,616 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:52,811 INFO L129 PetriNetUnfolder]: 590/1230 cut-off events. [2021-03-25 04:40:52,811 INFO L130 PetriNetUnfolder]: For 4609/10513 co-relation queries the response was YES. [2021-03-25 04:40:52,816 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4927 conditions, 1230 events. 590/1230 cut-off events. For 4609/10513 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 8855 event pairs, 59 based on Foata normal form. 447/1481 useless extension candidates. Maximal degree in co-relation 4900. Up to 719 conditions per place. [2021-03-25 04:40:52,820 INFO L132 encePairwiseOnDemand]: 192/199 looper letters, 14 selfloop transitions, 19 changer transitions 0/76 dead transitions. [2021-03-25 04:40:52,820 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 76 transitions, 536 flow [2021-03-25 04:40:52,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:40:52,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:40:52,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1168 transitions. [2021-03-25 04:40:52,822 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8384781048097631 [2021-03-25 04:40:52,822 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1168 transitions. [2021-03-25 04:40:52,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1168 transitions. [2021-03-25 04:40:52,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:52,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1168 transitions. [2021-03-25 04:40:52,824 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 04:40:52,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 199.0) internal successors, (1592), 8 states have internal predecessors, (1592), 0 states have call successors, (0), 0 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 04:40:52,826 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 199.0) internal successors, (1592), 8 states have internal predecessors, (1592), 0 states have call successors, (0), 0 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 04:40:52,826 INFO L185 Difference]: Start difference. First operand has 67 places, 62 transitions, 400 flow. Second operand 7 states and 1168 transitions. [2021-03-25 04:40:52,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 76 transitions, 536 flow [2021-03-25 04:40:52,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 76 transitions, 529 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 04:40:52,830 INFO L241 Difference]: Finished difference. Result has 75 places, 70 transitions, 521 flow [2021-03-25 04:40:52,830 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=521, PETRI_PLACES=75, PETRI_TRANSITIONS=70} [2021-03-25 04:40:52,830 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 19 predicate places. [2021-03-25 04:40:52,831 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:52,831 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 70 transitions, 521 flow [2021-03-25 04:40:52,831 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 70 transitions, 521 flow [2021-03-25 04:40:52,831 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 70 transitions, 521 flow [2021-03-25 04:40:52,892 INFO L129 PetriNetUnfolder]: 396/835 cut-off events. [2021-03-25 04:40:52,893 INFO L130 PetriNetUnfolder]: For 4428/5827 co-relation queries the response was YES. [2021-03-25 04:40:52,896 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4056 conditions, 835 events. 396/835 cut-off events. For 4428/5827 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 5752 event pairs, 68 based on Foata normal form. 41/752 useless extension candidates. Maximal degree in co-relation 4027. Up to 528 conditions per place. [2021-03-25 04:40:52,906 INFO L142 LiptonReduction]: Number of co-enabled transitions 1614 [2021-03-25 04:40:52,912 INFO L154 LiptonReduction]: Checked pairs total: 320 [2021-03-25 04:40:52,912 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:52,913 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 82 [2021-03-25 04:40:52,913 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 70 transitions, 521 flow [2021-03-25 04:40:52,913 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 04:40:52,913 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:52,913 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:52,913 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 04:40:52,913 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 04:40:52,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:52,914 INFO L82 PathProgramCache]: Analyzing trace with hash -858608293, now seen corresponding path program 1 times [2021-03-25 04:40:52,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:52,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316027589] [2021-03-25 04:40:52,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:52,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:52,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:52,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:52,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:52,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:52,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316027589] [2021-03-25 04:40:52,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:52,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:40:52,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310862231] [2021-03-25 04:40:52,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:40:52,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:52,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:40:52,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:40:52,949 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 199 [2021-03-25 04:40:52,949 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 70 transitions, 521 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 04:40:52,949 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:52,949 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 199 [2021-03-25 04:40:52,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:53,068 INFO L129 PetriNetUnfolder]: 644/1379 cut-off events. [2021-03-25 04:40:53,069 INFO L130 PetriNetUnfolder]: For 9635/15536 co-relation queries the response was YES. [2021-03-25 04:40:53,075 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6598 conditions, 1379 events. 644/1379 cut-off events. For 9635/15536 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 10554 event pairs, 85 based on Foata normal form. 114/1285 useless extension candidates. Maximal degree in co-relation 6567. Up to 907 conditions per place. [2021-03-25 04:40:53,082 INFO L132 encePairwiseOnDemand]: 196/199 looper letters, 3 selfloop transitions, 3 changer transitions 0/70 dead transitions. [2021-03-25 04:40:53,082 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 70 transitions, 533 flow [2021-03-25 04:40:53,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:40:53,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:40:53,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2021-03-25 04:40:53,083 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8844221105527639 [2021-03-25 04:40:53,083 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 528 transitions. [2021-03-25 04:40:53,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 528 transitions. [2021-03-25 04:40:53,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:53,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 528 transitions. [2021-03-25 04:40:53,084 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 04:40:53,085 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 04:40:53,085 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 04:40:53,085 INFO L185 Difference]: Start difference. First operand has 75 places, 70 transitions, 521 flow. Second operand 3 states and 528 transitions. [2021-03-25 04:40:53,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 70 transitions, 533 flow [2021-03-25 04:40:53,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 70 transitions, 483 flow, removed 17 selfloop flow, removed 3 redundant places. [2021-03-25 04:40:53,100 INFO L241 Difference]: Finished difference. Result has 75 places, 70 transitions, 482 flow [2021-03-25 04:40:53,100 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=482, PETRI_PLACES=75, PETRI_TRANSITIONS=70} [2021-03-25 04:40:53,100 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 19 predicate places. [2021-03-25 04:40:53,100 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:53,101 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 70 transitions, 482 flow [2021-03-25 04:40:53,101 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 70 transitions, 482 flow [2021-03-25 04:40:53,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 70 transitions, 482 flow [2021-03-25 04:40:53,198 INFO L129 PetriNetUnfolder]: 644/1358 cut-off events. [2021-03-25 04:40:53,199 INFO L130 PetriNetUnfolder]: For 6463/7309 co-relation queries the response was YES. [2021-03-25 04:40:53,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5671 conditions, 1358 events. 644/1358 cut-off events. For 6463/7309 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 10571 event pairs, 86 based on Foata normal form. 63/1231 useless extension candidates. Maximal degree in co-relation 5642. Up to 724 conditions per place. [2021-03-25 04:40:53,217 INFO L142 LiptonReduction]: Number of co-enabled transitions 1614 [2021-03-25 04:40:53,225 INFO L154 LiptonReduction]: Checked pairs total: 378 [2021-03-25 04:40:53,225 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:53,225 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 125 [2021-03-25 04:40:53,226 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 70 transitions, 482 flow [2021-03-25 04:40:53,226 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 04:40:53,226 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:53,226 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:53,226 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 04:40:53,226 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 04:40:53,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:53,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1950157004, now seen corresponding path program 1 times [2021-03-25 04:40:53,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:53,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971132081] [2021-03-25 04:40:53,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:53,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:53,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:53,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:53,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:53,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:53,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:53,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:53,276 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:40:53,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:40:53,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:53,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:53,284 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 04:40:53,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971132081] [2021-03-25 04:40:53,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:53,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:40:53,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097861598] [2021-03-25 04:40:53,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:40:53,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:53,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:40:53,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:40:53,286 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 199 [2021-03-25 04:40:53,286 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 70 transitions, 482 flow. Second operand has 6 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 0 states have call successors, (0), 0 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 04:40:53,286 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:53,286 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 199 [2021-03-25 04:40:53,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:53,540 INFO L129 PetriNetUnfolder]: 698/1431 cut-off events. [2021-03-25 04:40:53,540 INFO L130 PetriNetUnfolder]: For 7874/18959 co-relation queries the response was YES. [2021-03-25 04:40:53,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6168 conditions, 1431 events. 698/1431 cut-off events. For 7874/18959 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 10772 event pairs, 9 based on Foata normal form. 751/1903 useless extension candidates. Maximal degree in co-relation 6137. Up to 744 conditions per place. [2021-03-25 04:40:53,556 INFO L132 encePairwiseOnDemand]: 192/199 looper letters, 10 selfloop transitions, 28 changer transitions 4/85 dead transitions. [2021-03-25 04:40:53,556 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 85 transitions, 685 flow [2021-03-25 04:40:53,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 04:40:53,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 04:40:53,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1502 transitions. [2021-03-25 04:40:53,559 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8386376326074818 [2021-03-25 04:40:53,559 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1502 transitions. [2021-03-25 04:40:53,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1502 transitions. [2021-03-25 04:40:53,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:53,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1502 transitions. [2021-03-25 04:40:53,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 166.88888888888889) internal successors, (1502), 9 states have internal predecessors, (1502), 0 states have call successors, (0), 0 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 04:40:53,564 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 04:40:53,574 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 04:40:53,574 INFO L185 Difference]: Start difference. First operand has 75 places, 70 transitions, 482 flow. Second operand 9 states and 1502 transitions. [2021-03-25 04:40:53,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 85 transitions, 685 flow [2021-03-25 04:40:53,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 85 transitions, 680 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 04:40:53,586 INFO L241 Difference]: Finished difference. Result has 85 places, 78 transitions, 642 flow [2021-03-25 04:40:53,587 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=642, PETRI_PLACES=85, PETRI_TRANSITIONS=78} [2021-03-25 04:40:53,587 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 29 predicate places. [2021-03-25 04:40:53,587 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:53,587 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 642 flow [2021-03-25 04:40:53,587 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 642 flow [2021-03-25 04:40:53,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 642 flow [2021-03-25 04:40:53,670 INFO L129 PetriNetUnfolder]: 450/1045 cut-off events. [2021-03-25 04:40:53,670 INFO L130 PetriNetUnfolder]: For 6566/7622 co-relation queries the response was YES. [2021-03-25 04:40:53,677 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5151 conditions, 1045 events. 450/1045 cut-off events. For 6566/7622 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 8313 event pairs, 8 based on Foata normal form. 21/908 useless extension candidates. Maximal degree in co-relation 5118. Up to 551 conditions per place. [2021-03-25 04:40:53,690 INFO L142 LiptonReduction]: Number of co-enabled transitions 1724 [2021-03-25 04:40:53,753 INFO L154 LiptonReduction]: Checked pairs total: 977 [2021-03-25 04:40:53,753 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:40:53,753 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 166 [2021-03-25 04:40:53,755 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 75 transitions, 616 flow [2021-03-25 04:40:53,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 0 states have call successors, (0), 0 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 04:40:53,756 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:53,756 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 04:40:53,756 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 04:40:53,756 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:53,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:53,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1784071421, now seen corresponding path program 1 times [2021-03-25 04:40:53,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:53,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601620674] [2021-03-25 04:40:53,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:53,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:53,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:53,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:53,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:53,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:53,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:53,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:53,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:53,808 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:40:53,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:40:53,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:53,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:53,815 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 04:40:53,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601620674] [2021-03-25 04:40:53,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:53,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 04:40:53,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696645502] [2021-03-25 04:40:53,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:40:53,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:53,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:40:53,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:40:53,818 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 199 [2021-03-25 04:40:53,819 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 75 transitions, 616 flow. Second operand has 7 states, 7 states have (on average 162.85714285714286) internal successors, (1140), 7 states have internal predecessors, (1140), 0 states have call successors, (0), 0 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 04:40:53,819 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:53,819 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 199 [2021-03-25 04:40:53,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:53,933 INFO L129 PetriNetUnfolder]: 411/785 cut-off events. [2021-03-25 04:40:53,933 INFO L130 PetriNetUnfolder]: For 4187/7345 co-relation queries the response was YES. [2021-03-25 04:40:53,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3584 conditions, 785 events. 411/785 cut-off events. For 4187/7345 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 4636 event pairs, 2 based on Foata normal form. 176/799 useless extension candidates. Maximal degree in co-relation 3549. Up to 417 conditions per place. [2021-03-25 04:40:53,941 INFO L132 encePairwiseOnDemand]: 192/199 looper letters, 6 selfloop transitions, 18 changer transitions 5/72 dead transitions. [2021-03-25 04:40:53,941 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 72 transitions, 606 flow [2021-03-25 04:40:53,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 04:40:53,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 04:40:53,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1327 transitions. [2021-03-25 04:40:53,943 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8335427135678392 [2021-03-25 04:40:53,943 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1327 transitions. [2021-03-25 04:40:53,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1327 transitions. [2021-03-25 04:40:53,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:53,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1327 transitions. [2021-03-25 04:40:53,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 165.875) internal successors, (1327), 8 states have internal predecessors, (1327), 0 states have call successors, (0), 0 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 04:40:53,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 199.0) internal successors, (1791), 9 states have internal predecessors, (1791), 0 states have call successors, (0), 0 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 04:40:53,948 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 199.0) internal successors, (1791), 9 states have internal predecessors, (1791), 0 states have call successors, (0), 0 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 04:40:53,948 INFO L185 Difference]: Start difference. First operand has 85 places, 75 transitions, 616 flow. Second operand 8 states and 1327 transitions. [2021-03-25 04:40:53,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 72 transitions, 606 flow [2021-03-25 04:40:53,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 72 transitions, 513 flow, removed 37 selfloop flow, removed 9 redundant places. [2021-03-25 04:40:53,964 INFO L241 Difference]: Finished difference. Result has 78 places, 64 transitions, 459 flow [2021-03-25 04:40:53,964 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=199, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=459, PETRI_PLACES=78, PETRI_TRANSITIONS=64} [2021-03-25 04:40:53,964 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 22 predicate places. [2021-03-25 04:40:53,964 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:53,964 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 64 transitions, 459 flow [2021-03-25 04:40:53,964 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 64 transitions, 459 flow [2021-03-25 04:40:53,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 64 transitions, 459 flow [2021-03-25 04:40:53,994 INFO L129 PetriNetUnfolder]: 174/416 cut-off events. [2021-03-25 04:40:53,994 INFO L130 PetriNetUnfolder]: For 1109/1232 co-relation queries the response was YES. [2021-03-25 04:40:53,996 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1710 conditions, 416 events. 174/416 cut-off events. For 1109/1232 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2521 event pairs, 2 based on Foata normal form. 10/379 useless extension candidates. Maximal degree in co-relation 1680. Up to 151 conditions per place. [2021-03-25 04:40:53,999 INFO L142 LiptonReduction]: Number of co-enabled transitions 1058 [2021-03-25 04:40:54,554 WARN L205 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 184 [2021-03-25 04:40:54,740 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-03-25 04:40:56,444 WARN L205 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 338 DAG size of output: 264 [2021-03-25 04:40:56,856 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2021-03-25 04:40:57,082 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-03-25 04:40:57,314 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-03-25 04:40:57,836 WARN L205 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-03-25 04:40:58,336 WARN L205 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-03-25 04:40:58,342 INFO L154 LiptonReduction]: Checked pairs total: 1086 [2021-03-25 04:40:58,342 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:40:58,342 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4378 [2021-03-25 04:40:58,342 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 61 transitions, 443 flow [2021-03-25 04:40:58,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 162.85714285714286) internal successors, (1140), 7 states have internal predecessors, (1140), 0 states have call successors, (0), 0 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 04:40:58,342 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:58,343 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:58,343 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 04:40:58,343 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:58,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:58,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1240784993, now seen corresponding path program 1 times [2021-03-25 04:40:58,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:58,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14163824] [2021-03-25 04:40:58,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:58,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:58,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:58,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:58,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:58,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:58,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:58,387 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 04:40:58,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14163824] [2021-03-25 04:40:58,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:58,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:40:58,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860537767] [2021-03-25 04:40:58,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:40:58,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:58,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:40:58,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:40:58,389 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 201 [2021-03-25 04:40:58,389 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 61 transitions, 443 flow. Second operand has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 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 04:40:58,389 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:58,389 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 201 [2021-03-25 04:40:58,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:58,459 INFO L129 PetriNetUnfolder]: 344/768 cut-off events. [2021-03-25 04:40:58,459 INFO L130 PetriNetUnfolder]: For 5126/5790 co-relation queries the response was YES. [2021-03-25 04:40:58,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3065 conditions, 768 events. 344/768 cut-off events. For 5126/5790 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 5227 event pairs, 5 based on Foata normal form. 65/730 useless extension candidates. Maximal degree in co-relation 3033. Up to 260 conditions per place. [2021-03-25 04:40:58,464 INFO L132 encePairwiseOnDemand]: 198/201 looper letters, 3 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2021-03-25 04:40:58,464 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 62 transitions, 455 flow [2021-03-25 04:40:58,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:40:58,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:40:58,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 698 transitions. [2021-03-25 04:40:58,466 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8681592039800995 [2021-03-25 04:40:58,466 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 698 transitions. [2021-03-25 04:40:58,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 698 transitions. [2021-03-25 04:40:58,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:58,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 698 transitions. [2021-03-25 04:40:58,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 174.5) internal successors, (698), 4 states have internal predecessors, (698), 0 states have call successors, (0), 0 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 04:40:58,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 201.0) internal successors, (1005), 5 states have internal predecessors, (1005), 0 states have call successors, (0), 0 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 04:40:58,469 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 201.0) internal successors, (1005), 5 states have internal predecessors, (1005), 0 states have call successors, (0), 0 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 04:40:58,469 INFO L185 Difference]: Start difference. First operand has 74 places, 61 transitions, 443 flow. Second operand 4 states and 698 transitions. [2021-03-25 04:40:58,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 62 transitions, 455 flow [2021-03-25 04:40:58,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 380 flow, removed 20 selfloop flow, removed 9 redundant places. [2021-03-25 04:40:58,479 INFO L241 Difference]: Finished difference. Result has 70 places, 62 transitions, 381 flow [2021-03-25 04:40:58,479 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=381, PETRI_PLACES=70, PETRI_TRANSITIONS=62} [2021-03-25 04:40:58,480 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 14 predicate places. [2021-03-25 04:40:58,480 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:58,480 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 62 transitions, 381 flow [2021-03-25 04:40:58,480 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 62 transitions, 381 flow [2021-03-25 04:40:58,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 62 transitions, 381 flow [2021-03-25 04:40:58,520 INFO L129 PetriNetUnfolder]: 315/685 cut-off events. [2021-03-25 04:40:58,520 INFO L130 PetriNetUnfolder]: For 1262/1473 co-relation queries the response was YES. [2021-03-25 04:40:58,523 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2248 conditions, 685 events. 315/685 cut-off events. For 1262/1473 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 4580 event pairs, 4 based on Foata normal form. 28/611 useless extension candidates. Maximal degree in co-relation 2222. Up to 220 conditions per place. [2021-03-25 04:40:58,527 INFO L142 LiptonReduction]: Number of co-enabled transitions 1070 [2021-03-25 04:40:58,529 INFO L154 LiptonReduction]: Checked pairs total: 128 [2021-03-25 04:40:58,529 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:58,529 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 49 [2021-03-25 04:40:58,529 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 62 transitions, 381 flow [2021-03-25 04:40:58,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 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 04:40:58,529 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:58,530 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 04:40:58,530 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 04:40:58,530 INFO L428 AbstractCegarLoop]: === Iteration 18 === [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 04:40:58,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:58,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1369156489, now seen corresponding path program 1 times [2021-03-25 04:40:58,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:58,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095697014] [2021-03-25 04:40:58,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:58,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:58,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:58,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:58,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:58,559 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 04:40:58,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095697014] [2021-03-25 04:40:58,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:58,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:40:58,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448696187] [2021-03-25 04:40:58,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:40:58,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:58,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:40:58,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:40:58,560 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 201 [2021-03-25 04:40:58,561 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 62 transitions, 381 flow. Second operand has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 3 states have internal predecessors, (533), 0 states have call successors, (0), 0 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 04:40:58,561 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:58,561 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 201 [2021-03-25 04:40:58,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:58,641 INFO L129 PetriNetUnfolder]: 499/1065 cut-off events. [2021-03-25 04:40:58,641 INFO L130 PetriNetUnfolder]: For 3197/3756 co-relation queries the response was YES. [2021-03-25 04:40:58,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3491 conditions, 1065 events. 499/1065 cut-off events. For 3197/3756 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 7672 event pairs, 11 based on Foata normal form. 81/985 useless extension candidates. Maximal degree in co-relation 3463. Up to 342 conditions per place. [2021-03-25 04:40:58,651 INFO L132 encePairwiseOnDemand]: 198/201 looper letters, 3 selfloop transitions, 2 changer transitions 17/63 dead transitions. [2021-03-25 04:40:58,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 63 transitions, 399 flow [2021-03-25 04:40:58,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:40:58,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:40:58,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 536 transitions. [2021-03-25 04:40:58,657 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-03-25 04:40:58,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 536 transitions. [2021-03-25 04:40:58,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 536 transitions. [2021-03-25 04:40:58,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:58,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 536 transitions. [2021-03-25 04:40:58,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 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 04:40:58,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 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 04:40:58,659 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 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 04:40:58,659 INFO L185 Difference]: Start difference. First operand has 70 places, 62 transitions, 381 flow. Second operand 3 states and 536 transitions. [2021-03-25 04:40:58,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 63 transitions, 399 flow [2021-03-25 04:40:58,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 63 transitions, 398 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:40:58,673 INFO L241 Difference]: Finished difference. Result has 72 places, 46 transitions, 258 flow [2021-03-25 04:40:58,673 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=72, PETRI_TRANSITIONS=46} [2021-03-25 04:40:58,673 INFO L343 CegarLoopForPetriNet]: 56 programPoint places, 16 predicate places. [2021-03-25 04:40:58,673 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:58,673 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 46 transitions, 258 flow [2021-03-25 04:40:58,674 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 46 transitions, 258 flow [2021-03-25 04:40:58,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 46 transitions, 258 flow [2021-03-25 04:40:58,687 INFO L129 PetriNetUnfolder]: 101/237 cut-off events. [2021-03-25 04:40:58,688 INFO L130 PetriNetUnfolder]: For 549/594 co-relation queries the response was YES. [2021-03-25 04:40:58,688 INFO L84 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 237 events. 101/237 cut-off events. For 549/594 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1171 event pairs, 2 based on Foata normal form. 13/221 useless extension candidates. Maximal degree in co-relation 727. Up to 82 conditions per place. [2021-03-25 04:40:58,690 INFO L142 LiptonReduction]: Number of co-enabled transitions 590 [2021-03-25 04:40:59,013 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 69 [2021-03-25 04:40:59,292 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 88 [2021-03-25 04:40:59,362 INFO L154 LiptonReduction]: Checked pairs total: 129 [2021-03-25 04:40:59,362 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-25 04:40:59,362 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 689 [2021-03-25 04:40:59,362 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 42 transitions, 260 flow [2021-03-25 04:40:59,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 3 states have internal predecessors, (533), 0 states have call successors, (0), 0 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 04:40:59,362 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:59,362 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 04:40:59,362 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 04:40:59,363 INFO L428 AbstractCegarLoop]: === Iteration 19 === [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 04:40:59,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:59,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1097578852, now seen corresponding path program 1 times [2021-03-25 04:40:59,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:59,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992277311] [2021-03-25 04:40:59,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:40:59,379 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:40:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:40:59,412 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:40:59,445 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:40:59,445 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:40:59,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-25 04:40:59,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 04:40:59 BasicIcfg [2021-03-25 04:40:59,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 04:40:59,534 INFO L168 Benchmark]: Toolchain (without parser) took 23450.41 ms. Allocated memory was 327.2 MB in the beginning and 815.8 MB in the end (delta: 488.6 MB). Free memory was 289.7 MB in the beginning and 733.3 MB in the end (delta: -443.6 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.0 GB. [2021-03-25 04:40:59,534 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 327.2 MB. Free memory was 308.4 MB in the beginning and 308.3 MB in the end (delta: 77.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 04:40:59,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 487.95 ms. Allocated memory is still 327.2 MB. Free memory was 289.5 MB in the beginning and 286.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-03-25 04:40:59,534 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.07 ms. Allocated memory is still 327.2 MB. Free memory was 286.0 MB in the beginning and 281.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-25 04:40:59,535 INFO L168 Benchmark]: Boogie Preprocessor took 34.48 ms. Allocated memory is still 327.2 MB. Free memory was 281.8 MB in the beginning and 279.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:40:59,535 INFO L168 Benchmark]: RCFGBuilder took 1425.21 ms. Allocated memory is still 327.2 MB. Free memory was 279.7 MB in the beginning and 224.8 MB in the end (delta: 54.9 MB). Peak memory consumption was 153.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:40:59,535 INFO L168 Benchmark]: TraceAbstraction took 21414.93 ms. Allocated memory was 327.2 MB in the beginning and 815.8 MB in the end (delta: 488.6 MB). Free memory was 224.8 MB in the beginning and 733.3 MB in the end (delta: -508.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 04:40:59,536 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 327.2 MB. Free memory was 308.4 MB in the beginning and 308.3 MB in the end (delta: 77.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 487.95 ms. Allocated memory is still 327.2 MB. Free memory was 289.5 MB in the beginning and 286.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 82.07 ms. Allocated memory is still 327.2 MB. Free memory was 286.0 MB in the beginning and 281.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.48 ms. Allocated memory is still 327.2 MB. Free memory was 281.8 MB in the beginning and 279.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1425.21 ms. Allocated memory is still 327.2 MB. Free memory was 279.7 MB in the beginning and 224.8 MB in the end (delta: 54.9 MB). Peak memory consumption was 153.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 21414.93 ms. Allocated memory was 327.2 MB in the beginning and 815.8 MB in the end (delta: 488.6 MB). Free memory was 224.8 MB in the beginning and 733.3 MB in the end (delta: -508.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7120.1ms, 122 PlacesBefore, 56 PlacesAfterwards, 111 TransitionsBefore, 44 TransitionsAfterwards, 2630 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 75 TotalNumberOfCompositions, 5123 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2234, positive: 2112, positive conditional: 0, positive unconditional: 2112, negative: 122, negative conditional: 0, negative unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1197, positive: 1165, positive conditional: 0, positive unconditional: 1165, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1197, positive: 1165, positive conditional: 0, positive unconditional: 1165, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2234, positive: 947, positive conditional: 0, positive unconditional: 947, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 1197, unknown conditional: 0, unknown unconditional: 1197] , Statistics on independence cache: Total cache size (in pairs): 131, Positive cache size: 116, Positive conditional cache size: 0, Positive unconditional cache size: 116, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2655.5ms, 52 PlacesBefore, 40 PlacesAfterwards, 36 TransitionsBefore, 29 TransitionsAfterwards, 434 CoEnabledTransitionPairs, 4 FixpointIterations, 6 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 2040 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 513, positive: 402, positive conditional: 0, positive unconditional: 402, 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: 39, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 39, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 513, positive: 374, positive conditional: 0, positive unconditional: 374, negative: 100, negative conditional: 0, negative unconditional: 100, unknown: 39, unknown conditional: 0, unknown unconditional: 39] , Statistics on independence cache: Total cache size (in pairs): 149, Positive cache size: 126, Positive conditional cache size: 0, Positive unconditional cache size: 126, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 893.2ms, 41 PlacesBefore, 40 PlacesAfterwards, 31 TransitionsBefore, 30 TransitionsAfterwards, 460 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 928 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 198, positive: 150, positive conditional: 0, positive unconditional: 150, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 198, positive: 148, positive conditional: 0, positive unconditional: 148, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 154, Positive cache size: 128, Positive conditional cache size: 0, Positive unconditional cache size: 128, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.9ms, 42 PlacesBefore, 42 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 502 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 450 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 84, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 22, negative conditional: 0, negative unconditional: 22, 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: 84, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 154, Positive cache size: 128, Positive conditional cache size: 0, Positive unconditional cache size: 128, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.4ms, 44 PlacesBefore, 44 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 405 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 85, positive: 65, positive conditional: 0, positive unconditional: 65, negative: 20, negative conditional: 0, negative unconditional: 20, 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: 85, positive: 65, positive conditional: 0, positive unconditional: 65, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 154, Positive cache size: 128, Positive conditional cache size: 0, Positive unconditional cache size: 128, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.0ms, 45 PlacesBefore, 45 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 546 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 411 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 82, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 82, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 162, Positive cache size: 134, Positive conditional cache size: 0, Positive unconditional cache size: 134, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.2ms, 48 PlacesBefore, 48 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 546 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 411 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 73, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 73, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 163, Positive cache size: 135, Positive conditional cache size: 0, Positive unconditional cache size: 135, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.2ms, 50 PlacesBefore, 50 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 610 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 404 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 64, positive: 47, positive conditional: 0, positive unconditional: 47, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 64, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 164, Positive cache size: 136, Positive conditional cache size: 0, Positive unconditional cache size: 136, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.4ms, 53 PlacesBefore, 53 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 370 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 90, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 14, negative conditional: 0, negative unconditional: 14, 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: 90, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 164, Positive cache size: 136, Positive conditional cache size: 0, Positive unconditional cache size: 136, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.0ms, 56 PlacesBefore, 56 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 742 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 496 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 73, positive: 55, positive conditional: 0, positive unconditional: 55, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 73, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 166, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.8ms, 59 PlacesBefore, 59 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 882 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 498 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 53, positive: 36, positive conditional: 0, positive unconditional: 36, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 53, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 167, Positive cache size: 138, Positive conditional cache size: 0, Positive unconditional cache size: 138, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.1ms, 63 PlacesBefore, 63 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 914 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 518 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 92, positive: 75, positive conditional: 0, positive unconditional: 75, 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: 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: 92, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 167, Positive cache size: 138, Positive conditional cache size: 0, Positive unconditional cache size: 138, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 718.7ms, 67 PlacesBefore, 67 PlacesAfterwards, 62 TransitionsBefore, 62 TransitionsAfterwards, 1300 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 567 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 273, positive: 259, positive conditional: 0, positive unconditional: 259, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 0, positive unconditional: 11, 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: 11, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 273, positive: 248, positive conditional: 0, positive unconditional: 248, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 168, Positive cache size: 143, Positive conditional cache size: 0, Positive unconditional cache size: 143, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 81.6ms, 75 PlacesBefore, 75 PlacesAfterwards, 70 TransitionsBefore, 70 TransitionsAfterwards, 1614 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 320 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 106, positive: 98, positive conditional: 0, positive unconditional: 98, negative: 8, negative conditional: 0, negative unconditional: 8, 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: 106, positive: 96, positive conditional: 0, positive unconditional: 96, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 170, Positive cache size: 145, Positive conditional cache size: 0, Positive unconditional cache size: 145, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 124.6ms, 75 PlacesBefore, 75 PlacesAfterwards, 70 TransitionsBefore, 70 TransitionsAfterwards, 1614 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 378 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 150, positive: 141, positive conditional: 0, positive unconditional: 141, negative: 9, negative conditional: 0, negative unconditional: 9, 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: 150, positive: 141, positive conditional: 0, positive unconditional: 141, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 170, Positive cache size: 145, Positive conditional cache size: 0, Positive unconditional cache size: 145, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 165.7ms, 85 PlacesBefore, 85 PlacesAfterwards, 78 TransitionsBefore, 75 TransitionsAfterwards, 1724 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 977 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 480, positive: 462, positive conditional: 0, positive unconditional: 462, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 480, positive: 455, positive conditional: 0, positive unconditional: 455, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 163, Positive cache size: 139, Positive conditional cache size: 0, Positive unconditional cache size: 139, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4377.5ms, 78 PlacesBefore, 74 PlacesAfterwards, 64 TransitionsBefore, 61 TransitionsAfterwards, 1058 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 1086 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 253, positive: 223, positive conditional: 0, positive unconditional: 223, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 0, positive unconditional: 11, 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: 11, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 253, positive: 212, positive conditional: 0, positive unconditional: 212, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 124, Positive conditional cache size: 0, Positive unconditional cache size: 124, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.8ms, 70 PlacesBefore, 70 PlacesAfterwards, 62 TransitionsBefore, 62 TransitionsAfterwards, 1070 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 128 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 4, negative conditional: 0, negative unconditional: 4, 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: 8, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 124, Positive conditional cache size: 0, Positive unconditional cache size: 124, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 688.1ms, 72 PlacesBefore, 61 PlacesAfterwards, 46 TransitionsBefore, 42 TransitionsAfterwards, 590 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 129 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 129, positive: 129, positive conditional: 0, positive unconditional: 129, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 17, positive conditional: 0, positive unconditional: 17, 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: 17, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 129, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 17, unknown conditional: 0, unknown unconditional: 17] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - 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_p3_EAX = 0; [L714] 0 int __unbuffered_p3_EBX = 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; [L844] 0 pthread_t t805; [L845] FCALL, FORK 0 pthread_create(&t805, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=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] [L846] 0 pthread_t t806; [L847] FCALL, FORK 0 pthread_create(&t806, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=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] [L848] 0 pthread_t t807; [L849] FCALL, FORK 0 pthread_create(&t807, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=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] [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$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$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=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 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=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=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] [L850] 0 pthread_t t808; [L851] FCALL, FORK 0 pthread_create(&t808, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=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=1] [L813] 4 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=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=2] [L816] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=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=2] [L819] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=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=2] [L748] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=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=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=2] [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=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=2] [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L758] 1 return 0; [L763] 2 x = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=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=2] [L766] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=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=1, 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=2] [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$r_buff1_thd2 [L776] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L778] 2 return 0; [L799] EXPR 3 y$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$r_buff1_thd3 [L806] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L808] 3 return 0; [L822] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L822] EXPR 4 y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y [L822] 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) [L822] 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) [L823] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L823] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L824] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L824] 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 [L825] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L825] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L826] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L826] 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 [L829] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L831] 4 return 0; [L853] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L857] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L857] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L857] 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) [L857] 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) [L858] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L858] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L859] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L859] 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 [L860] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L860] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L861] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L861] 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 [L864] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L865] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L866] 0 y$flush_delayed = weak$$choice2 [L867] 0 y$mem_tmp = y [L868] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L868] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L869] EXPR 0 weak$$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$w_buff0)) [L869] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L870] EXPR 0 weak$$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$w_buff1)) [L870] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L871] EXPR 0 weak$$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)) [L871] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L872] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L872] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L873] EXPR 0 weak$$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)) [L873] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L874] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L874] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2 && __unbuffered_p3_EAX == 2 && __unbuffered_p3_EBX == 0) [L876] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L876] 0 y = y$flush_delayed ? y$mem_tmp : y [L877] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, 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=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 114 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 21259.4ms, OverallIterations: 19, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2295.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7166.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 80 SDtfs, 39 SDslu, 26 SDs, 0 SdLazy, 480 SolverSat, 128 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 408.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 404.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=642occurred in iteration=15, InterpolantAutomatonStates: 83, 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: 56.9ms SsaConstructionTime, 483.3ms SatisfiabilityAnalysisTime, 981.6ms InterpolantComputationTime, 342 NumberOfCodeBlocks, 342 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 299 ConstructedInterpolants, 0 QuantifiedInterpolants, 1935 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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...