/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix045_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 21:24:02,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 21:24:02,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 21:24:02,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-28 21:24:02,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 21:24:02,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 21:24:02,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 21:24:02,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 21:24:02,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 21:24:02,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 21:24:02,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 21:24:02,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 21:24:02,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 21:24:02,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 21:24:02,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 21:24:02,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 21:24:02,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 21:24:02,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 21:24:02,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 21:24:02,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 21:24:02,473 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 21:24:02,507 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 21:24:02,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 21:24:02,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 21:24:02,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 21:24:02,509 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 21:24:02,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 21:24:02,510 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 21:24:02,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 21:24:02,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 21:24:02,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 21:24:02,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 21:24:02,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 21:24:02,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 21:24:02,512 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 21:24:02,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 21:24:02,512 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 21:24:02,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 21:24:02,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 21:24:02,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 21:24:02,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 21:24:02,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 21:24:02,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 21:24:02,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 21:24:02,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 21:24:02,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 21:24:02,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 21:24:02,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 21:24:02,516 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 21:24:02,516 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 21:24:02,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 21:24:02,516 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 21:24:02,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 21:24:02,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 21:24:02,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 21:24:02,951 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 21:24:02,952 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 21:24:02,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix045_tso.oepc.i [2021-04-28 21:24:03,047 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/632bde390/f5aca3ed7a624dbeac732ccd8a4acbb2/FLAGe8c96e438 [2021-04-28 21:24:03,796 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 21:24:03,797 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix045_tso.oepc.i [2021-04-28 21:24:03,814 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/632bde390/f5aca3ed7a624dbeac732ccd8a4acbb2/FLAGe8c96e438 [2021-04-28 21:24:04,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/632bde390/f5aca3ed7a624dbeac732ccd8a4acbb2 [2021-04-28 21:24:04,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 21:24:04,083 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 21:24:04,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 21:24:04,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 21:24:04,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 21:24:04,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:24:04" (1/1) ... [2021-04-28 21:24:04,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dfafa15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:24:04, skipping insertion in model container [2021-04-28 21:24:04,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:24:04" (1/1) ... [2021-04-28 21:24:04,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 21:24:04,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 21:24:04,460 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/mix045_tso.oepc.i[949,962] [2021-04-28 21:24:04,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 21:24:04,831 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 21:24:04,848 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/mix045_tso.oepc.i[949,962] [2021-04-28 21:24:04,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 21:24:05,015 INFO L208 MainTranslator]: Completed translation [2021-04-28 21:24:05,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:24:05 WrapperNode [2021-04-28 21:24:05,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 21:24:05,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 21:24:05,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 21:24:05,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 21:24:05,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:24:05" (1/1) ... [2021-04-28 21:24:05,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:24:05" (1/1) ... [2021-04-28 21:24:05,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 21:24:05,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 21:24:05,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 21:24:05,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 21:24:05,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:24:05" (1/1) ... [2021-04-28 21:24:05,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:24:05" (1/1) ... [2021-04-28 21:24:05,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:24:05" (1/1) ... [2021-04-28 21:24:05,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:24:05" (1/1) ... [2021-04-28 21:24:05,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:24:05" (1/1) ... [2021-04-28 21:24:05,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:24:05" (1/1) ... [2021-04-28 21:24:05,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:24:05" (1/1) ... [2021-04-28 21:24:05,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 21:24:05,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 21:24:05,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 21:24:05,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 21:24:05,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:24:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 21:24:05,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 21:24:05,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 21:24:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 21:24:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 21:24:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 21:24:05,234 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 21:24:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 21:24:05,235 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 21:24:05,236 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 21:24:05,236 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 21:24:05,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 21:24:05,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 21:24:05,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 21:24:05,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 21:24:05,239 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 21:24:07,204 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 21:24:07,205 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 21:24:07,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:24:07 BoogieIcfgContainer [2021-04-28 21:24:07,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 21:24:07,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 21:24:07,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 21:24:07,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 21:24:07,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 09:24:04" (1/3) ... [2021-04-28 21:24:07,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20903f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:24:07, skipping insertion in model container [2021-04-28 21:24:07,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:24:05" (2/3) ... [2021-04-28 21:24:07,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20903f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:24:07, skipping insertion in model container [2021-04-28 21:24:07,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:24:07" (3/3) ... [2021-04-28 21:24:07,217 INFO L111 eAbstractionObserver]: Analyzing ICFG mix045_tso.oepc.i [2021-04-28 21:24:07,225 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 21:24:07,231 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 21:24:07,232 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 21:24:07,270 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,271 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,271 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,271 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,271 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,272 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,272 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,274 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,274 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,274 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,274 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,274 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,275 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,275 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,275 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,276 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,276 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,276 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,276 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,277 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,277 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,279 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,279 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,280 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,280 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,280 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,281 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,281 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,281 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,282 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,282 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,282 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,282 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,283 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,283 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,283 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,283 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,284 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,284 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,284 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,284 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,285 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,285 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,285 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,286 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,287 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,288 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,288 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,288 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,288 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,289 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,289 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,289 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,292 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,292 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,293 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,296 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,298 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,298 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,306 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,307 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,308 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,308 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:24:07,311 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 21:24:07,336 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-04-28 21:24:07,363 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 21:24:07,363 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 21:24:07,363 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 21:24:07,364 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 21:24:07,364 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 21:24:07,364 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 21:24:07,365 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 21:24:07,365 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 21:24:07,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 100 transitions, 215 flow [2021-04-28 21:24:07,437 INFO L129 PetriNetUnfolder]: 2/97 cut-off events. [2021-04-28 21:24:07,437 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:24:07,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-04-28 21:24:07,442 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 100 transitions, 215 flow [2021-04-28 21:24:07,448 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 97 transitions, 203 flow [2021-04-28 21:24:07,450 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:24:07,468 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 97 transitions, 203 flow [2021-04-28 21:24:07,472 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 97 transitions, 203 flow [2021-04-28 21:24:07,475 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 97 transitions, 203 flow [2021-04-28 21:24:07,509 INFO L129 PetriNetUnfolder]: 2/97 cut-off events. [2021-04-28 21:24:07,509 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:24:07,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2021-04-28 21:24:07,518 INFO L146 LiptonReduction]: Number of co-enabled transitions 1738 [2021-04-28 21:24:09,354 WARN L205 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 228 DAG size of output: 187 [2021-04-28 21:24:09,850 WARN L205 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 21:24:12,112 WARN L205 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 21:24:13,152 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 21:24:13,784 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 21:24:16,653 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 21:24:16,766 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:24:17,350 WARN L205 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2021-04-28 21:24:17,590 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 21:24:18,026 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-04-28 21:24:19,233 WARN L205 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:24:19,747 WARN L205 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:24:20,831 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:24:21,928 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:24:22,465 WARN L205 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 21:24:22,997 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 21:24:25,217 WARN L205 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 265 DAG size of output: 264 [2021-04-28 21:24:26,350 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-28 21:24:26,952 WARN L205 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 21:24:27,535 WARN L205 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 21:24:28,720 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:24:29,916 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:24:33,690 WARN L205 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 21:24:34,254 WARN L205 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 21:24:35,460 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 21:24:36,693 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 21:24:37,337 WARN L205 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:24:37,958 WARN L205 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:24:39,230 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 21:24:40,498 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 21:24:41,162 WARN L205 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:24:41,896 WARN L205 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:24:44,465 WARN L205 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 268 DAG size of output: 267 [2021-04-28 21:24:45,751 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:24:46,478 WARN L205 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:24:47,181 WARN L205 SmtUtils]: Spent 702.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:24:48,574 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:24:49,945 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:24:53,024 WARN L205 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:24:53,724 WARN L205 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:24:55,094 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 21:24:56,507 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 21:24:57,251 WARN L205 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 21:24:57,959 WARN L205 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 21:24:59,410 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 21:25:00,898 WARN L205 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 21:25:01,652 WARN L205 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:25:02,406 WARN L205 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:25:03,886 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:25:05,394 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:25:05,905 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 21:25:06,025 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 21:25:06,141 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 21:25:06,266 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2021-04-28 21:25:06,378 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-28 21:25:06,490 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-28 21:25:06,605 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-28 21:25:06,717 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-04-28 21:25:07,195 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-04-28 21:25:07,595 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 21:25:07,718 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 21:25:07,837 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 21:25:07,955 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 21:25:08,424 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:25:08,627 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:25:08,731 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:25:10,329 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:25:10,431 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:25:10,538 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:25:12,399 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:25:12,509 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:25:12,620 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:25:12,728 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:25:12,855 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:25:12,967 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:25:13,090 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:25:13,201 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:25:13,314 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:25:13,416 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:25:13,525 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:25:13,748 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:25:13,864 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:25:13,990 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:25:14,116 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:25:14,267 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:25:14,406 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:25:14,552 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:25:14,693 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:25:14,815 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:25:14,925 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:25:15,051 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:25:15,168 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:25:15,309 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:25:15,450 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:25:15,594 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:25:15,743 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:25:15,893 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:25:16,040 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:25:16,193 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:25:16,339 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:25:16,472 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:25:16,601 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:25:16,734 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:25:16,862 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:25:16,979 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:25:17,088 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:25:17,210 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:25:17,323 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:25:17,438 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:25:17,551 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:25:17,665 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:25:17,778 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:25:18,144 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 21:25:18,263 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 21:25:18,381 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 21:25:18,500 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 21:25:20,823 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:25:21,066 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:25:21,303 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:25:21,545 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:25:21,737 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:25:21,932 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:25:22,134 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:25:22,327 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:25:22,535 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:25:22,741 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:25:22,950 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:25:23,158 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:25:23,412 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:25:23,649 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:25:23,883 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:25:24,118 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:25:24,353 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:25:24,588 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:25:24,823 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:25:25,063 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:25:25,322 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:25:25,578 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:25:25,832 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:25:26,074 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:25:26,725 WARN L205 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2021-04-28 21:25:27,034 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-04-28 21:25:27,687 WARN L205 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2021-04-28 21:25:27,990 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-04-28 21:25:28,148 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:25:28,303 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:25:28,452 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:25:28,598 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:25:28,766 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:25:28,933 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:25:29,100 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:25:29,267 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:25:29,440 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:25:29,608 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:25:29,791 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:25:29,970 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:25:30,209 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:25:30,453 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:25:30,710 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:25:30,969 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:25:31,163 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:25:31,370 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:25:31,578 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:25:31,788 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:25:31,975 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:25:32,172 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:25:32,351 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:25:32,530 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:25:32,663 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:25:32,791 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:25:32,927 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:25:33,063 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:25:33,757 WARN L205 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-04-28 21:25:34,073 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-04-28 21:25:34,750 WARN L205 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-04-28 21:25:35,071 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-04-28 21:25:35,233 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:25:35,406 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:25:35,565 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:25:35,729 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:25:35,958 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 21:25:36,181 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 21:25:36,422 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 21:25:36,658 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 21:25:36,837 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:25:37,008 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:25:37,169 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:25:37,326 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:25:37,539 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:25:37,751 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:25:37,977 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:25:38,197 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:25:38,447 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:25:38,693 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:25:38,940 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:25:39,185 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:25:39,322 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:25:39,473 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:25:39,616 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:25:39,749 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:25:39,793 INFO L158 LiptonReduction]: Checked pairs total: 14838 [2021-04-28 21:25:39,793 INFO L160 LiptonReduction]: Total number of compositions: 223 [2021-04-28 21:25:39,798 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 92349 [2021-04-28 21:25:39,837 INFO L129 PetriNetUnfolder]: 0/69 cut-off events. [2021-04-28 21:25:39,837 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:25:39,838 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:25:39,839 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:25:39,839 INFO L428 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:25:39,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:25:39,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1849301874, now seen corresponding path program 1 times [2021-04-28 21:25:39,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:25:39,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739298630] [2021-04-28 21:25:39,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:25:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:25:40,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:40,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:25:40,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:25:40,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739298630] [2021-04-28 21:25:40,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:25:40,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:25:40,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75063092] [2021-04-28 21:25:40,149 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:25:40,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:25:40,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:25:40,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:25:40,173 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 323 [2021-04-28 21:25:40,182 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 121 transitions, 251 flow. Second operand has 3 states, 3 states have (on average 250.66666666666666) internal successors, (752), 3 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:40,182 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:25:40,182 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 323 [2021-04-28 21:25:40,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:25:40,669 INFO L129 PetriNetUnfolder]: 199/622 cut-off events. [2021-04-28 21:25:40,669 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:25:40,672 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1002 conditions, 622 events. 199/622 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 4815 event pairs, 15 based on Foata normal form. 10/285 useless extension candidates. Maximal degree in co-relation 934. Up to 313 conditions per place. [2021-04-28 21:25:40,675 INFO L132 encePairwiseOnDemand]: 305/323 looper letters, 7 selfloop transitions, 4 changer transitions 88/132 dead transitions. [2021-04-28 21:25:40,675 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 132 transitions, 367 flow [2021-04-28 21:25:40,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:25:40,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:25:40,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 801 transitions. [2021-04-28 21:25:40,697 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.826625386996904 [2021-04-28 21:25:40,698 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 801 transitions. [2021-04-28 21:25:40,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 801 transitions. [2021-04-28 21:25:40,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:25:40,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 801 transitions. [2021-04-28 21:25:40,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 267.0) internal successors, (801), 3 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:40,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:40,728 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:40,730 INFO L185 Difference]: Start difference. First operand has 129 places, 121 transitions, 251 flow. Second operand 3 states and 801 transitions. [2021-04-28 21:25:40,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 132 transitions, 367 flow [2021-04-28 21:25:40,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 132 transitions, 364 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 21:25:40,739 INFO L241 Difference]: Finished difference. Result has 125 places, 41 transitions, 96 flow [2021-04-28 21:25:40,742 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=125, PETRI_TRANSITIONS=41} [2021-04-28 21:25:40,743 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -4 predicate places. [2021-04-28 21:25:40,743 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:25:40,743 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 41 transitions, 96 flow [2021-04-28 21:25:40,744 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 41 transitions, 96 flow [2021-04-28 21:25:40,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 41 transitions, 96 flow [2021-04-28 21:25:40,750 INFO L129 PetriNetUnfolder]: 0/41 cut-off events. [2021-04-28 21:25:40,751 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:25:40,751 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 41 events. 0/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 141 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-28 21:25:40,752 INFO L146 LiptonReduction]: Number of co-enabled transitions 972 [2021-04-28 21:25:41,077 INFO L158 LiptonReduction]: Checked pairs total: 906 [2021-04-28 21:25:41,078 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:25:41,078 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 335 [2021-04-28 21:25:41,080 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 41 transitions, 96 flow [2021-04-28 21:25:41,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 250.66666666666666) internal successors, (752), 3 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:41,081 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:25:41,081 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:25:41,081 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 21:25:41,082 INFO L428 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:25:41,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:25:41,082 INFO L82 PathProgramCache]: Analyzing trace with hash -937276260, now seen corresponding path program 1 times [2021-04-28 21:25:41,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:25:41,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039281162] [2021-04-28 21:25:41,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:25:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:25:41,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:41,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:25:41,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:25:41,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039281162] [2021-04-28 21:25:41,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:25:41,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:25:41,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150494958] [2021-04-28 21:25:41,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:25:41,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:25:41,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:25:41,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:25:41,309 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 323 [2021-04-28 21:25:41,310 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 247.66666666666666) internal successors, (743), 3 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:41,311 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:25:41,311 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 323 [2021-04-28 21:25:41,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:25:41,333 INFO L129 PetriNetUnfolder]: 3/57 cut-off events. [2021-04-28 21:25:41,333 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:25:41,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 57 events. 3/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 206 event pairs, 1 based on Foata normal form. 1/34 useless extension candidates. Maximal degree in co-relation 71. Up to 10 conditions per place. [2021-04-28 21:25:41,334 INFO L132 encePairwiseOnDemand]: 319/323 looper letters, 3 selfloop transitions, 3 changer transitions 0/43 dead transitions. [2021-04-28 21:25:41,335 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 43 transitions, 112 flow [2021-04-28 21:25:41,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:25:41,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:25:41,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 748 transitions. [2021-04-28 21:25:41,339 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7719298245614035 [2021-04-28 21:25:41,339 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 748 transitions. [2021-04-28 21:25:41,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 748 transitions. [2021-04-28 21:25:41,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:25:41,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 748 transitions. [2021-04-28 21:25:41,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:41,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:41,347 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 323.0) internal successors, (1292), 4 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:41,347 INFO L185 Difference]: Start difference. First operand has 50 places, 41 transitions, 96 flow. Second operand 3 states and 748 transitions. [2021-04-28 21:25:41,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 43 transitions, 112 flow [2021-04-28 21:25:41,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 43 transitions, 104 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 21:25:41,349 INFO L241 Difference]: Finished difference. Result has 51 places, 43 transitions, 107 flow [2021-04-28 21:25:41,349 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=323, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=107, PETRI_PLACES=51, PETRI_TRANSITIONS=43} [2021-04-28 21:25:41,350 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -78 predicate places. [2021-04-28 21:25:41,350 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:25:41,350 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 43 transitions, 107 flow [2021-04-28 21:25:41,350 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 43 transitions, 107 flow [2021-04-28 21:25:41,351 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 107 flow [2021-04-28 21:25:41,360 INFO L129 PetriNetUnfolder]: 3/57 cut-off events. [2021-04-28 21:25:41,360 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:25:41,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 57 events. 3/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 214 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 70. Up to 10 conditions per place. [2021-04-28 21:25:41,362 INFO L146 LiptonReduction]: Number of co-enabled transitions 1058 [2021-04-28 21:25:42,065 INFO L158 LiptonReduction]: Checked pairs total: 1356 [2021-04-28 21:25:42,065 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 21:25:42,065 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 715 [2021-04-28 21:25:42,067 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 107 flow [2021-04-28 21:25:42,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 247.66666666666666) internal successors, (743), 3 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:42,068 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:25:42,068 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:25:42,068 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 21:25:42,068 INFO L428 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:25:42,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:25:42,069 INFO L82 PathProgramCache]: Analyzing trace with hash 189680049, now seen corresponding path program 1 times [2021-04-28 21:25:42,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:25:42,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011197041] [2021-04-28 21:25:42,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:25:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:25:42,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:42,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:25:42,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:25:42,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011197041] [2021-04-28 21:25:42,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:25:42,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:25:42,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298309486] [2021-04-28 21:25:42,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:25:42,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:25:42,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:25:42,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:25:42,178 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 324 [2021-04-28 21:25:42,180 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:42,180 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:25:42,180 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 324 [2021-04-28 21:25:42,180 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:25:42,202 INFO L129 PetriNetUnfolder]: 3/57 cut-off events. [2021-04-28 21:25:42,202 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-28 21:25:42,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 57 events. 3/57 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 214 event pairs, 1 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 74. Up to 10 conditions per place. [2021-04-28 21:25:42,203 INFO L132 encePairwiseOnDemand]: 321/324 looper letters, 1 selfloop transitions, 2 changer transitions 0/43 dead transitions. [2021-04-28 21:25:42,203 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 43 transitions, 113 flow [2021-04-28 21:25:42,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:25:42,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:25:42,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 712 transitions. [2021-04-28 21:25:42,208 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7325102880658436 [2021-04-28 21:25:42,208 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 712 transitions. [2021-04-28 21:25:42,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 712 transitions. [2021-04-28 21:25:42,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:25:42,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 712 transitions. [2021-04-28 21:25:42,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:42,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:42,216 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:42,216 INFO L185 Difference]: Start difference. First operand has 51 places, 43 transitions, 107 flow. Second operand 3 states and 712 transitions. [2021-04-28 21:25:42,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 43 transitions, 113 flow [2021-04-28 21:25:42,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 43 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 21:25:42,218 INFO L241 Difference]: Finished difference. Result has 53 places, 43 transitions, 112 flow [2021-04-28 21:25:42,218 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=53, PETRI_TRANSITIONS=43} [2021-04-28 21:25:42,219 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -76 predicate places. [2021-04-28 21:25:42,219 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:25:42,219 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 43 transitions, 112 flow [2021-04-28 21:25:42,219 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 43 transitions, 112 flow [2021-04-28 21:25:42,220 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 43 transitions, 112 flow [2021-04-28 21:25:42,229 INFO L129 PetriNetUnfolder]: 3/57 cut-off events. [2021-04-28 21:25:42,229 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-28 21:25:42,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 57 events. 3/57 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 211 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 73. Up to 10 conditions per place. [2021-04-28 21:25:42,231 INFO L146 LiptonReduction]: Number of co-enabled transitions 1048 [2021-04-28 21:25:42,637 INFO L158 LiptonReduction]: Checked pairs total: 597 [2021-04-28 21:25:42,637 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:25:42,638 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 419 [2021-04-28 21:25:42,639 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 43 transitions, 112 flow [2021-04-28 21:25:42,640 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:42,640 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:25:42,640 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:25:42,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 21:25:42,641 INFO L428 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:25:42,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:25:42,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1585118109, now seen corresponding path program 1 times [2021-04-28 21:25:42,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:25:42,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013303452] [2021-04-28 21:25:42,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:25:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:25:42,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:42,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 21:25:42,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:42,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:25:42,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:42,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 21:25:42,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:25:42,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013303452] [2021-04-28 21:25:42,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:25:42,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:25:42,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555967429] [2021-04-28 21:25:42,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:25:42,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:25:42,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:25:42,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:25:42,835 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 324 [2021-04-28 21:25:42,836 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 43 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 199.8) internal successors, (999), 5 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:42,837 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:25:42,837 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 324 [2021-04-28 21:25:42,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:25:43,057 INFO L129 PetriNetUnfolder]: 86/231 cut-off events. [2021-04-28 21:25:43,058 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-04-28 21:25:43,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 231 events. 86/231 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1283 event pairs, 51 based on Foata normal form. 1/157 useless extension candidates. Maximal degree in co-relation 434. Up to 137 conditions per place. [2021-04-28 21:25:43,061 INFO L132 encePairwiseOnDemand]: 317/324 looper letters, 11 selfloop transitions, 8 changer transitions 0/52 dead transitions. [2021-04-28 21:25:43,061 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 52 transitions, 171 flow [2021-04-28 21:25:43,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:25:43,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:25:43,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 814 transitions. [2021-04-28 21:25:43,066 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6280864197530864 [2021-04-28 21:25:43,066 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 814 transitions. [2021-04-28 21:25:43,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 814 transitions. [2021-04-28 21:25:43,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:25:43,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 814 transitions. [2021-04-28 21:25:43,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 203.5) internal successors, (814), 4 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) [2021-04-28 21:25:43,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 324.0) internal successors, (1620), 5 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:43,074 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 324.0) internal successors, (1620), 5 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:43,075 INFO L185 Difference]: Start difference. First operand has 53 places, 43 transitions, 112 flow. Second operand 4 states and 814 transitions. [2021-04-28 21:25:43,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 52 transitions, 171 flow [2021-04-28 21:25:43,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 52 transitions, 165 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 21:25:43,078 INFO L241 Difference]: Finished difference. Result has 56 places, 50 transitions, 165 flow [2021-04-28 21:25:43,078 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=165, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2021-04-28 21:25:43,078 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -73 predicate places. [2021-04-28 21:25:43,078 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:25:43,078 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 50 transitions, 165 flow [2021-04-28 21:25:43,079 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 50 transitions, 165 flow [2021-04-28 21:25:43,079 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 50 transitions, 165 flow [2021-04-28 21:25:43,096 INFO L129 PetriNetUnfolder]: 17/110 cut-off events. [2021-04-28 21:25:43,096 INFO L130 PetriNetUnfolder]: For 20/21 co-relation queries the response was YES. [2021-04-28 21:25:43,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 110 events. 17/110 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 565 event pairs, 3 based on Foata normal form. 1/61 useless extension candidates. Maximal degree in co-relation 188. Up to 21 conditions per place. [2021-04-28 21:25:43,099 INFO L146 LiptonReduction]: Number of co-enabled transitions 1274 [2021-04-28 21:25:43,244 INFO L158 LiptonReduction]: Checked pairs total: 410 [2021-04-28 21:25:43,244 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:25:43,244 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 166 [2021-04-28 21:25:43,246 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 165 flow [2021-04-28 21:25:43,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 199.8) internal successors, (999), 5 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:43,247 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:25:43,247 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:25:43,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 21:25:43,247 INFO L428 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:25:43,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:25:43,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1890907525, now seen corresponding path program 1 times [2021-04-28 21:25:43,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:25:43,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195098939] [2021-04-28 21:25:43,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:25:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:25:43,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:43,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:25:43,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:43,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:25:43,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:43,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 21:25:43,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:43,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 21:25:43,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:25:43,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195098939] [2021-04-28 21:25:43,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:25:43,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:25:43,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093960380] [2021-04-28 21:25:43,441 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:25:43,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:25:43,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:25:43,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:25:43,444 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 324 [2021-04-28 21:25:43,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 50 transitions, 165 flow. Second operand has 6 states, 6 states have (on average 199.83333333333334) internal successors, (1199), 6 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:43,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:25:43,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 324 [2021-04-28 21:25:43,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:25:43,679 INFO L129 PetriNetUnfolder]: 85/292 cut-off events. [2021-04-28 21:25:43,679 INFO L130 PetriNetUnfolder]: For 84/86 co-relation queries the response was YES. [2021-04-28 21:25:43,682 INFO L84 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 292 events. 85/292 cut-off events. For 84/86 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 1895 event pairs, 3 based on Foata normal form. 6/173 useless extension candidates. Maximal degree in co-relation 627. Up to 84 conditions per place. [2021-04-28 21:25:43,684 INFO L132 encePairwiseOnDemand]: 315/324 looper letters, 9 selfloop transitions, 19 changer transitions 0/61 dead transitions. [2021-04-28 21:25:43,684 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 61 transitions, 254 flow [2021-04-28 21:25:43,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:25:43,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:25:43,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1017 transitions. [2021-04-28 21:25:43,690 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6277777777777778 [2021-04-28 21:25:43,690 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1017 transitions. [2021-04-28 21:25:43,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1017 transitions. [2021-04-28 21:25:43,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:25:43,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1017 transitions. [2021-04-28 21:25:43,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 203.4) internal successors, (1017), 5 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:43,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:43,701 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:43,701 INFO L185 Difference]: Start difference. First operand has 56 places, 50 transitions, 165 flow. Second operand 5 states and 1017 transitions. [2021-04-28 21:25:43,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 61 transitions, 254 flow [2021-04-28 21:25:43,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 61 transitions, 254 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 21:25:43,705 INFO L241 Difference]: Finished difference. Result has 62 places, 58 transitions, 262 flow [2021-04-28 21:25:43,705 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=262, PETRI_PLACES=62, PETRI_TRANSITIONS=58} [2021-04-28 21:25:43,705 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -67 predicate places. [2021-04-28 21:25:43,706 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:25:43,706 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 58 transitions, 262 flow [2021-04-28 21:25:43,706 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 58 transitions, 262 flow [2021-04-28 21:25:43,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 58 transitions, 262 flow [2021-04-28 21:25:43,748 INFO L129 PetriNetUnfolder]: 49/252 cut-off events. [2021-04-28 21:25:43,748 INFO L130 PetriNetUnfolder]: For 102/104 co-relation queries the response was YES. [2021-04-28 21:25:43,750 INFO L84 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 252 events. 49/252 cut-off events. For 102/104 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1778 event pairs, 13 based on Foata normal form. 2/142 useless extension candidates. Maximal degree in co-relation 560. Up to 49 conditions per place. [2021-04-28 21:25:43,755 INFO L146 LiptonReduction]: Number of co-enabled transitions 1508 [2021-04-28 21:25:43,763 INFO L158 LiptonReduction]: Checked pairs total: 255 [2021-04-28 21:25:43,763 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:25:43,763 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-04-28 21:25:43,765 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 58 transitions, 262 flow [2021-04-28 21:25:43,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 199.83333333333334) internal successors, (1199), 6 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:43,766 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:25:43,766 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:25:43,766 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 21:25:43,767 INFO L428 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:25:43,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:25:43,767 INFO L82 PathProgramCache]: Analyzing trace with hash 559457502, now seen corresponding path program 1 times [2021-04-28 21:25:43,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:25:43,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523762353] [2021-04-28 21:25:43,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:25:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:25:43,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:43,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:25:43,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:43,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:25:43,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:43,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-28 21:25:43,934 INFO L142 QuantifierPusher]: treesize reduction 4, result has 88.6 percent of original size [2021-04-28 21:25:43,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-04-28 21:25:43,983 INFO L142 QuantifierPusher]: treesize reduction 4, result has 86.2 percent of original size [2021-04-28 21:25:43,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-28 21:25:44,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:25:44,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523762353] [2021-04-28 21:25:44,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:25:44,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 21:25:44,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118456947] [2021-04-28 21:25:44,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 21:25:44,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:25:44,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 21:25:44,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-04-28 21:25:44,027 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 324 [2021-04-28 21:25:44,030 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 262 flow. Second operand has 7 states, 7 states have (on average 185.85714285714286) internal successors, (1301), 7 states have internal predecessors, (1301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:44,030 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:25:44,030 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 324 [2021-04-28 21:25:44,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:25:44,308 INFO L129 PetriNetUnfolder]: 89/399 cut-off events. [2021-04-28 21:25:44,308 INFO L130 PetriNetUnfolder]: For 244/254 co-relation queries the response was YES. [2021-04-28 21:25:44,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1097 conditions, 399 events. 89/399 cut-off events. For 244/254 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 3233 event pairs, 3 based on Foata normal form. 10/255 useless extension candidates. Maximal degree in co-relation 1079. Up to 147 conditions per place. [2021-04-28 21:25:44,314 INFO L132 encePairwiseOnDemand]: 315/324 looper letters, 13 selfloop transitions, 21 changer transitions 0/67 dead transitions. [2021-04-28 21:25:44,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 67 transitions, 380 flow [2021-04-28 21:25:44,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 21:25:44,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 21:25:44,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1134 transitions. [2021-04-28 21:25:44,321 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2021-04-28 21:25:44,321 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1134 transitions. [2021-04-28 21:25:44,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1134 transitions. [2021-04-28 21:25:44,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:25:44,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1134 transitions. [2021-04-28 21:25:44,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:44,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 324.0) internal successors, (2268), 7 states have internal predecessors, (2268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:44,332 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 324.0) internal successors, (2268), 7 states have internal predecessors, (2268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:44,332 INFO L185 Difference]: Start difference. First operand has 62 places, 58 transitions, 262 flow. Second operand 6 states and 1134 transitions. [2021-04-28 21:25:44,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 67 transitions, 380 flow [2021-04-28 21:25:44,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 67 transitions, 356 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-04-28 21:25:44,338 INFO L241 Difference]: Finished difference. Result has 68 places, 63 transitions, 332 flow [2021-04-28 21:25:44,338 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=332, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2021-04-28 21:25:44,339 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -61 predicate places. [2021-04-28 21:25:44,339 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:25:44,339 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 63 transitions, 332 flow [2021-04-28 21:25:44,339 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 63 transitions, 332 flow [2021-04-28 21:25:44,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 63 transitions, 332 flow [2021-04-28 21:25:44,399 INFO L129 PetriNetUnfolder]: 43/336 cut-off events. [2021-04-28 21:25:44,399 INFO L130 PetriNetUnfolder]: For 277/291 co-relation queries the response was YES. [2021-04-28 21:25:44,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 336 events. 43/336 cut-off events. For 277/291 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 2759 event pairs, 3 based on Foata normal form. 9/200 useless extension candidates. Maximal degree in co-relation 776. Up to 84 conditions per place. [2021-04-28 21:25:44,408 INFO L146 LiptonReduction]: Number of co-enabled transitions 1630 [2021-04-28 21:25:44,449 INFO L158 LiptonReduction]: Checked pairs total: 425 [2021-04-28 21:25:44,449 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:25:44,449 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 110 [2021-04-28 21:25:44,451 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 332 flow [2021-04-28 21:25:44,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 185.85714285714286) internal successors, (1301), 7 states have internal predecessors, (1301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:44,452 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:25:44,452 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:25:44,452 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 21:25:44,453 INFO L428 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:25:44,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:25:44,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1455882260, now seen corresponding path program 2 times [2021-04-28 21:25:44,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:25:44,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844067960] [2021-04-28 21:25:44,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:25:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:25:44,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:44,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:25:44,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:44,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:25:44,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:44,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:25:44,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:44,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 21:25:44,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:44,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:25:44,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:25:44,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844067960] [2021-04-28 21:25:44,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:25:44,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 21:25:44,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555288737] [2021-04-28 21:25:44,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 21:25:44,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:25:44,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 21:25:44,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-04-28 21:25:44,632 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 324 [2021-04-28 21:25:44,635 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 63 transitions, 332 flow. Second operand has 7 states, 7 states have (on average 199.85714285714286) internal successors, (1399), 7 states have internal predecessors, (1399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:44,635 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:25:44,635 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 324 [2021-04-28 21:25:44,635 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:25:44,906 INFO L129 PetriNetUnfolder]: 87/467 cut-off events. [2021-04-28 21:25:44,906 INFO L130 PetriNetUnfolder]: For 513/523 co-relation queries the response was YES. [2021-04-28 21:25:44,909 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1311 conditions, 467 events. 87/467 cut-off events. For 513/523 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 4135 event pairs, 36 based on Foata normal form. 10/291 useless extension candidates. Maximal degree in co-relation 1290. Up to 128 conditions per place. [2021-04-28 21:25:44,912 INFO L132 encePairwiseOnDemand]: 316/324 looper letters, 18 selfloop transitions, 22 changer transitions 0/73 dead transitions. [2021-04-28 21:25:44,912 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 73 transitions, 487 flow [2021-04-28 21:25:44,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:25:44,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:25:44,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1015 transitions. [2021-04-28 21:25:44,918 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6265432098765432 [2021-04-28 21:25:44,918 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1015 transitions. [2021-04-28 21:25:44,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1015 transitions. [2021-04-28 21:25:44,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:25:44,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1015 transitions. [2021-04-28 21:25:44,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:44,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:44,927 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:44,928 INFO L185 Difference]: Start difference. First operand has 68 places, 63 transitions, 332 flow. Second operand 5 states and 1015 transitions. [2021-04-28 21:25:44,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 73 transitions, 487 flow [2021-04-28 21:25:44,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 73 transitions, 458 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-04-28 21:25:44,935 INFO L241 Difference]: Finished difference. Result has 72 places, 72 transitions, 465 flow [2021-04-28 21:25:44,935 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=465, PETRI_PLACES=72, PETRI_TRANSITIONS=72} [2021-04-28 21:25:44,935 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -57 predicate places. [2021-04-28 21:25:44,936 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:25:44,936 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 72 transitions, 465 flow [2021-04-28 21:25:44,936 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 72 transitions, 465 flow [2021-04-28 21:25:44,937 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 72 transitions, 465 flow [2021-04-28 21:25:44,994 INFO L129 PetriNetUnfolder]: 42/339 cut-off events. [2021-04-28 21:25:44,994 INFO L130 PetriNetUnfolder]: For 433/439 co-relation queries the response was YES. [2021-04-28 21:25:44,997 INFO L84 FinitePrefix]: Finished finitePrefix Result has 981 conditions, 339 events. 42/339 cut-off events. For 433/439 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 2889 event pairs, 3 based on Foata normal form. 3/196 useless extension candidates. Maximal degree in co-relation 959. Up to 102 conditions per place. [2021-04-28 21:25:45,004 INFO L146 LiptonReduction]: Number of co-enabled transitions 1812 [2021-04-28 21:25:45,013 INFO L158 LiptonReduction]: Checked pairs total: 546 [2021-04-28 21:25:45,013 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:25:45,013 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 77 [2021-04-28 21:25:45,015 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 72 transitions, 465 flow [2021-04-28 21:25:45,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 199.85714285714286) internal successors, (1399), 7 states have internal predecessors, (1399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:45,016 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:25:45,016 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:25:45,016 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 21:25:45,016 INFO L428 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:25:45,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:25:45,017 INFO L82 PathProgramCache]: Analyzing trace with hash 628180780, now seen corresponding path program 3 times [2021-04-28 21:25:45,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:25:45,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872978279] [2021-04-28 21:25:45,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:25:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:25:45,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:45,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:25:45,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:45,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:25:45,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:45,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:25:45,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:45,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 21:25:45,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:45,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 21:25:45,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:25:45,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872978279] [2021-04-28 21:25:45,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:25:45,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:25:45,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559756238] [2021-04-28 21:25:45,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:25:45,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:25:45,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:25:45,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:25:45,189 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 324 [2021-04-28 21:25:45,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 72 transitions, 465 flow. Second operand has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 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) [2021-04-28 21:25:45,191 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:25:45,192 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 324 [2021-04-28 21:25:45,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:25:45,582 INFO L129 PetriNetUnfolder]: 80/482 cut-off events. [2021-04-28 21:25:45,583 INFO L130 PetriNetUnfolder]: For 709/721 co-relation queries the response was YES. [2021-04-28 21:25:45,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1530 conditions, 482 events. 80/482 cut-off events. For 709/721 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 4328 event pairs, 3 based on Foata normal form. 12/296 useless extension candidates. Maximal degree in co-relation 1506. Up to 118 conditions per place. [2021-04-28 21:25:45,589 INFO L132 encePairwiseOnDemand]: 316/324 looper letters, 9 selfloop transitions, 35 changer transitions 0/77 dead transitions. [2021-04-28 21:25:45,589 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 77 transitions, 586 flow [2021-04-28 21:25:45,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 21:25:45,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 21:25:45,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1345 transitions. [2021-04-28 21:25:45,596 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5930335097001763 [2021-04-28 21:25:45,596 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1345 transitions. [2021-04-28 21:25:45,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1345 transitions. [2021-04-28 21:25:45,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:25:45,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1345 transitions. [2021-04-28 21:25:45,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 192.14285714285714) internal successors, (1345), 7 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:45,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 324.0) internal successors, (2592), 8 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:45,608 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 324.0) internal successors, (2592), 8 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:45,608 INFO L185 Difference]: Start difference. First operand has 72 places, 72 transitions, 465 flow. Second operand 7 states and 1345 transitions. [2021-04-28 21:25:45,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 77 transitions, 586 flow [2021-04-28 21:25:45,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 77 transitions, 567 flow, removed 7 selfloop flow, removed 2 redundant places. [2021-04-28 21:25:45,615 INFO L241 Difference]: Finished difference. Result has 77 places, 73 transitions, 546 flow [2021-04-28 21:25:45,616 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=546, PETRI_PLACES=77, PETRI_TRANSITIONS=73} [2021-04-28 21:25:45,616 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -52 predicate places. [2021-04-28 21:25:45,616 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:25:45,616 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 73 transitions, 546 flow [2021-04-28 21:25:45,617 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 73 transitions, 546 flow [2021-04-28 21:25:45,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 73 transitions, 546 flow [2021-04-28 21:25:45,677 INFO L129 PetriNetUnfolder]: 39/346 cut-off events. [2021-04-28 21:25:45,677 INFO L130 PetriNetUnfolder]: For 560/566 co-relation queries the response was YES. [2021-04-28 21:25:45,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1128 conditions, 346 events. 39/346 cut-off events. For 560/566 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 2988 event pairs, 9 based on Foata normal form. 3/197 useless extension candidates. Maximal degree in co-relation 1105. Up to 104 conditions per place. [2021-04-28 21:25:45,687 INFO L146 LiptonReduction]: Number of co-enabled transitions 1822 [2021-04-28 21:25:45,697 INFO L158 LiptonReduction]: Checked pairs total: 538 [2021-04-28 21:25:45,698 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:25:45,698 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 82 [2021-04-28 21:25:45,699 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 73 transitions, 546 flow [2021-04-28 21:25:45,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 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) [2021-04-28 21:25:45,700 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:25:45,700 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:25:45,700 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 21:25:45,701 INFO L428 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:25:45,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:25:45,701 INFO L82 PathProgramCache]: Analyzing trace with hash 627447630, now seen corresponding path program 1 times [2021-04-28 21:25:45,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:25:45,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400973076] [2021-04-28 21:25:45,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:25:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:25:45,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:45,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:25:45,780 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:25:45,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:25:45,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:45,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:25:45,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:25:45,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400973076] [2021-04-28 21:25:45,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:25:45,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:25:45,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097098507] [2021-04-28 21:25:45,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:25:45,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:25:45,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:25:45,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:25:45,806 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 324 [2021-04-28 21:25:45,808 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 73 transitions, 546 flow. Second operand has 4 states, 4 states have (on average 225.75) internal successors, (903), 4 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:45,809 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:25:45,809 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 324 [2021-04-28 21:25:45,809 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:25:47,691 INFO L129 PetriNetUnfolder]: 6882/12186 cut-off events. [2021-04-28 21:25:47,691 INFO L130 PetriNetUnfolder]: For 3330/7884 co-relation queries the response was YES. [2021-04-28 21:25:47,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26453 conditions, 12186 events. 6882/12186 cut-off events. For 3330/7884 co-relation queries the response was YES. Maximal size of possible extension queue 3384. Compared 124256 event pairs, 2802 based on Foata normal form. 347/3084 useless extension candidates. Maximal degree in co-relation 26428. Up to 7675 conditions per place. [2021-04-28 21:25:47,793 INFO L132 encePairwiseOnDemand]: 307/324 looper letters, 30 selfloop transitions, 27 changer transitions 3/108 dead transitions. [2021-04-28 21:25:47,794 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 108 transitions, 730 flow [2021-04-28 21:25:47,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:25:47,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:25:47,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1179 transitions. [2021-04-28 21:25:47,800 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7277777777777777 [2021-04-28 21:25:47,800 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1179 transitions. [2021-04-28 21:25:47,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1179 transitions. [2021-04-28 21:25:47,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:25:47,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1179 transitions. [2021-04-28 21:25:47,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 235.8) internal successors, (1179), 5 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:47,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:47,810 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:47,810 INFO L185 Difference]: Start difference. First operand has 77 places, 73 transitions, 546 flow. Second operand 5 states and 1179 transitions. [2021-04-28 21:25:47,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 108 transitions, 730 flow [2021-04-28 21:25:47,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 108 transitions, 713 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-04-28 21:25:47,832 INFO L241 Difference]: Finished difference. Result has 82 places, 95 transitions, 702 flow [2021-04-28 21:25:47,832 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=702, PETRI_PLACES=82, PETRI_TRANSITIONS=95} [2021-04-28 21:25:47,832 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -47 predicate places. [2021-04-28 21:25:47,832 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:25:47,833 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 95 transitions, 702 flow [2021-04-28 21:25:47,833 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 95 transitions, 702 flow [2021-04-28 21:25:47,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 95 transitions, 702 flow [2021-04-28 21:25:49,198 INFO L129 PetriNetUnfolder]: 5941/10798 cut-off events. [2021-04-28 21:25:49,198 INFO L130 PetriNetUnfolder]: For 5504/16193 co-relation queries the response was YES. [2021-04-28 21:25:49,265 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31756 conditions, 10798 events. 5941/10798 cut-off events. For 5504/16193 co-relation queries the response was YES. Maximal size of possible extension queue 2493. Compared 109428 event pairs, 2624 based on Foata normal form. 32/2886 useless extension candidates. Maximal degree in co-relation 31730. Up to 9527 conditions per place. [2021-04-28 21:25:49,410 INFO L146 LiptonReduction]: Number of co-enabled transitions 2570 [2021-04-28 21:25:49,453 INFO L158 LiptonReduction]: Checked pairs total: 616 [2021-04-28 21:25:49,453 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:25:49,454 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1622 [2021-04-28 21:25:49,455 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 95 transitions, 702 flow [2021-04-28 21:25:49,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 225.75) internal successors, (903), 4 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:49,456 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:25:49,456 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:25:49,456 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 21:25:49,456 INFO L428 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:25:49,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:25:49,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1740047229, now seen corresponding path program 1 times [2021-04-28 21:25:49,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:25:49,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124209122] [2021-04-28 21:25:49,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:25:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:25:49,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:49,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:25:49,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:49,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:25:49,586 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:25:49,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:25:49,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:49,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:25:49,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:25:49,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124209122] [2021-04-28 21:25:49,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:25:49,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:25:49,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290559300] [2021-04-28 21:25:49,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:25:49,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:25:49,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:25:49,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:25:49,609 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 324 [2021-04-28 21:25:49,610 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 95 transitions, 702 flow. Second operand has 5 states, 5 states have (on average 225.8) internal successors, (1129), 5 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:49,610 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:25:49,610 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 324 [2021-04-28 21:25:49,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:25:51,949 INFO L129 PetriNetUnfolder]: 5871/12039 cut-off events. [2021-04-28 21:25:51,949 INFO L130 PetriNetUnfolder]: For 11508/258134 co-relation queries the response was YES. [2021-04-28 21:25:52,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46300 conditions, 12039 events. 5871/12039 cut-off events. For 11508/258134 co-relation queries the response was YES. Maximal size of possible extension queue 3885. Compared 137070 event pairs, 450 based on Foata normal form. 507/3657 useless extension candidates. Maximal degree in co-relation 46272. Up to 10451 conditions per place. [2021-04-28 21:25:52,068 INFO L132 encePairwiseOnDemand]: 307/324 looper letters, 21 selfloop transitions, 52 changer transitions 9/125 dead transitions. [2021-04-28 21:25:52,068 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 125 transitions, 996 flow [2021-04-28 21:25:52,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 21:25:52,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 21:25:52,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1653 transitions. [2021-04-28 21:25:52,076 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7288359788359788 [2021-04-28 21:25:52,076 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1653 transitions. [2021-04-28 21:25:52,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1653 transitions. [2021-04-28 21:25:52,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:25:52,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1653 transitions. [2021-04-28 21:25:52,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 236.14285714285714) internal successors, (1653), 7 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:52,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 324.0) internal successors, (2592), 8 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:52,092 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 324.0) internal successors, (2592), 8 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:52,093 INFO L185 Difference]: Start difference. First operand has 82 places, 95 transitions, 702 flow. Second operand 7 states and 1653 transitions. [2021-04-28 21:25:52,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 125 transitions, 996 flow [2021-04-28 21:25:52,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 125 transitions, 968 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-04-28 21:25:52,162 INFO L241 Difference]: Finished difference. Result has 88 places, 114 transitions, 950 flow [2021-04-28 21:25:52,162 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=609, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=950, PETRI_PLACES=88, PETRI_TRANSITIONS=114} [2021-04-28 21:25:52,162 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -41 predicate places. [2021-04-28 21:25:52,162 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:25:52,163 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 114 transitions, 950 flow [2021-04-28 21:25:52,163 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 114 transitions, 950 flow [2021-04-28 21:25:52,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 114 transitions, 950 flow [2021-04-28 21:25:53,361 INFO L129 PetriNetUnfolder]: 3705/8252 cut-off events. [2021-04-28 21:25:53,361 INFO L130 PetriNetUnfolder]: For 21310/33619 co-relation queries the response was YES. [2021-04-28 21:25:53,408 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36359 conditions, 8252 events. 3705/8252 cut-off events. For 21310/33619 co-relation queries the response was YES. Maximal size of possible extension queue 2532. Compared 97034 event pairs, 474 based on Foata normal form. 26/2245 useless extension candidates. Maximal degree in co-relation 36329. Up to 7280 conditions per place. [2021-04-28 21:25:53,511 INFO L146 LiptonReduction]: Number of co-enabled transitions 2938 [2021-04-28 21:25:53,532 INFO L158 LiptonReduction]: Checked pairs total: 588 [2021-04-28 21:25:53,533 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:25:53,533 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1371 [2021-04-28 21:25:53,534 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 114 transitions, 950 flow [2021-04-28 21:25:53,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 225.8) internal successors, (1129), 5 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:53,535 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:25:53,535 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:25:53,535 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 21:25:53,535 INFO L428 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:25:53,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:25:53,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1495582435, now seen corresponding path program 1 times [2021-04-28 21:25:53,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:25:53,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942906332] [2021-04-28 21:25:53,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:25:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:25:53,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:53,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:25:53,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:53,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:25:53,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:25:53,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942906332] [2021-04-28 21:25:53,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:25:53,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 21:25:53,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139628549] [2021-04-28 21:25:53,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:25:53,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:25:53,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:25:53,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:25:53,618 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 324 [2021-04-28 21:25:53,619 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 114 transitions, 950 flow. Second operand has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:53,620 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:25:53,620 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 324 [2021-04-28 21:25:53,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:25:55,864 INFO L129 PetriNetUnfolder]: 7055/15492 cut-off events. [2021-04-28 21:25:55,864 INFO L130 PetriNetUnfolder]: For 81463/257538 co-relation queries the response was YES. [2021-04-28 21:25:55,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68189 conditions, 15492 events. 7055/15492 cut-off events. For 81463/257538 co-relation queries the response was YES. Maximal size of possible extension queue 5250. Compared 194214 event pairs, 882 based on Foata normal form. 123/4061 useless extension candidates. Maximal degree in co-relation 68157. Up to 13805 conditions per place. [2021-04-28 21:25:55,991 INFO L132 encePairwiseOnDemand]: 321/324 looper letters, 3 selfloop transitions, 3 changer transitions 0/114 dead transitions. [2021-04-28 21:25:55,991 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 114 transitions, 962 flow [2021-04-28 21:25:55,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:25:55,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:25:55,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 750 transitions. [2021-04-28 21:25:55,996 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7716049382716049 [2021-04-28 21:25:55,996 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 750 transitions. [2021-04-28 21:25:55,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 750 transitions. [2021-04-28 21:25:55,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:25:55,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 750 transitions. [2021-04-28 21:25:55,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:56,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:56,002 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 324.0) internal successors, (1296), 4 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:25:56,002 INFO L185 Difference]: Start difference. First operand has 88 places, 114 transitions, 950 flow. Second operand 3 states and 750 transitions. [2021-04-28 21:25:56,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 114 transitions, 962 flow [2021-04-28 21:26:00,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 114 transitions, 833 flow, removed 42 selfloop flow, removed 3 redundant places. [2021-04-28 21:26:00,270 INFO L241 Difference]: Finished difference. Result has 88 places, 114 transitions, 832 flow [2021-04-28 21:26:00,271 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=832, PETRI_PLACES=88, PETRI_TRANSITIONS=114} [2021-04-28 21:26:00,271 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -41 predicate places. [2021-04-28 21:26:00,271 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:26:00,271 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 114 transitions, 832 flow [2021-04-28 21:26:00,272 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 114 transitions, 832 flow [2021-04-28 21:26:00,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 114 transitions, 832 flow [2021-04-28 21:26:01,778 INFO L129 PetriNetUnfolder]: 7016/15453 cut-off events. [2021-04-28 21:26:01,778 INFO L130 PetriNetUnfolder]: For 15400/21257 co-relation queries the response was YES. [2021-04-28 21:26:01,848 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52271 conditions, 15453 events. 7016/15453 cut-off events. For 15400/21257 co-relation queries the response was YES. Maximal size of possible extension queue 4955. Compared 194356 event pairs, 909 based on Foata normal form. 41/4034 useless extension candidates. Maximal degree in co-relation 52241. Up to 7435 conditions per place. [2021-04-28 21:26:01,994 INFO L146 LiptonReduction]: Number of co-enabled transitions 2936 [2021-04-28 21:26:02,015 INFO L158 LiptonReduction]: Checked pairs total: 588 [2021-04-28 21:26:02,016 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:26:02,016 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1745 [2021-04-28 21:26:02,018 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 114 transitions, 832 flow [2021-04-28 21:26:02,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:26:02,018 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:26:02,018 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:26:02,019 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 21:26:02,019 INFO L428 AbstractCegarLoop]: === Iteration 12 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:26:02,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:26:02,019 INFO L82 PathProgramCache]: Analyzing trace with hash 274628732, now seen corresponding path program 1 times [2021-04-28 21:26:02,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:26:02,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070791469] [2021-04-28 21:26:02,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:26:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:26:02,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:26:02,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:26:02,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:26:02,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:26:02,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:26:02,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:26:02,211 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:26:02,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:26:02,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:26:02,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:26:02,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:26:02,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070791469] [2021-04-28 21:26:02,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:26:02,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 21:26:02,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624358243] [2021-04-28 21:26:02,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:26:02,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:26:02,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:26:02,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:26:02,237 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 324 [2021-04-28 21:26:02,239 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 114 transitions, 832 flow. Second operand has 6 states, 6 states have (on average 225.83333333333334) internal successors, (1355), 6 states have internal predecessors, (1355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:26:02,239 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:26:02,239 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 324 [2021-04-28 21:26:02,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:26:04,423 INFO L129 PetriNetUnfolder]: 6596/15429 cut-off events. [2021-04-28 21:26:04,424 INFO L130 PetriNetUnfolder]: For 20272/181880 co-relation queries the response was YES. [2021-04-28 21:26:04,489 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64644 conditions, 15429 events. 6596/15429 cut-off events. For 20272/181880 co-relation queries the response was YES. Maximal size of possible extension queue 5319. Compared 201080 event pairs, 0 based on Foata normal form. 688/4619 useless extension candidates. Maximal degree in co-relation 64612. Up to 8910 conditions per place. [2021-04-28 21:26:04,513 INFO L132 encePairwiseOnDemand]: 307/324 looper letters, 5 selfloop transitions, 67 changer transitions 20/131 dead transitions. [2021-04-28 21:26:04,513 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 131 transitions, 1109 flow [2021-04-28 21:26:04,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 21:26:04,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 21:26:04,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2109 transitions. [2021-04-28 21:26:04,523 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7232510288065843 [2021-04-28 21:26:04,523 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2109 transitions. [2021-04-28 21:26:04,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2109 transitions. [2021-04-28 21:26:04,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:26:04,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2109 transitions. [2021-04-28 21:26:04,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 234.33333333333334) internal successors, (2109), 9 states have internal predecessors, (2109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:26:04,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 324.0) internal successors, (3240), 10 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:26:04,540 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 324.0) internal successors, (3240), 10 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:26:04,540 INFO L185 Difference]: Start difference. First operand has 88 places, 114 transitions, 832 flow. Second operand 9 states and 2109 transitions. [2021-04-28 21:26:04,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 131 transitions, 1109 flow [2021-04-28 21:26:07,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 131 transitions, 1088 flow, removed 7 selfloop flow, removed 2 redundant places. [2021-04-28 21:26:07,789 INFO L241 Difference]: Finished difference. Result has 96 places, 109 transitions, 958 flow [2021-04-28 21:26:07,789 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=789, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=958, PETRI_PLACES=96, PETRI_TRANSITIONS=109} [2021-04-28 21:26:07,790 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -33 predicate places. [2021-04-28 21:26:07,790 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:26:07,790 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 109 transitions, 958 flow [2021-04-28 21:26:07,790 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 109 transitions, 958 flow [2021-04-28 21:26:07,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 109 transitions, 958 flow [2021-04-28 21:26:08,203 INFO L129 PetriNetUnfolder]: 2179/5710 cut-off events. [2021-04-28 21:26:08,204 INFO L130 PetriNetUnfolder]: For 51033/75968 co-relation queries the response was YES. [2021-04-28 21:26:08,298 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24722 conditions, 5710 events. 2179/5710 cut-off events. For 51033/75968 co-relation queries the response was YES. Maximal size of possible extension queue 2160. Compared 72054 event pairs, 0 based on Foata normal form. 3/1379 useless extension candidates. Maximal degree in co-relation 24689. Up to 4455 conditions per place. [2021-04-28 21:26:08,334 INFO L146 LiptonReduction]: Number of co-enabled transitions 2378 [2021-04-28 21:26:08,466 INFO L158 LiptonReduction]: Checked pairs total: 716 [2021-04-28 21:26:08,466 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 21:26:08,466 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 676 [2021-04-28 21:26:08,467 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 109 transitions, 958 flow [2021-04-28 21:26:08,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 225.83333333333334) internal successors, (1355), 6 states have internal predecessors, (1355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:26:08,468 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:26:08,468 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:26:08,468 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-28 21:26:08,468 INFO L428 AbstractCegarLoop]: === Iteration 13 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:26:08,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:26:08,469 INFO L82 PathProgramCache]: Analyzing trace with hash 2106902065, now seen corresponding path program 1 times [2021-04-28 21:26:08,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:26:08,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056182269] [2021-04-28 21:26:08,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:26:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:26:08,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:26:08,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:26:08,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:26:08,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:26:08,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:26:08,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:26:08,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:26:08,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056182269] [2021-04-28 21:26:08,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:26:08,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:26:08,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067025038] [2021-04-28 21:26:08,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:26:08,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:26:08,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:26:08,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:26:08,542 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 325 [2021-04-28 21:26:08,543 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 109 transitions, 958 flow. Second operand has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:26:08,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:26:08,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 325 [2021-04-28 21:26:08,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:26:09,406 INFO L129 PetriNetUnfolder]: 3254/8514 cut-off events. [2021-04-28 21:26:09,406 INFO L130 PetriNetUnfolder]: For 89843/138317 co-relation queries the response was YES. [2021-04-28 21:26:09,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37175 conditions, 8514 events. 3254/8514 cut-off events. For 89843/138317 co-relation queries the response was YES. Maximal size of possible extension queue 3039. Compared 107154 event pairs, 0 based on Foata normal form. 31/2056 useless extension candidates. Maximal degree in co-relation 37140. Up to 6534 conditions per place. [2021-04-28 21:26:09,447 INFO L132 encePairwiseOnDemand]: 321/325 looper letters, 3 selfloop transitions, 1 changer transitions 26/110 dead transitions. [2021-04-28 21:26:09,447 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 110 transitions, 972 flow [2021-04-28 21:26:09,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:26:09,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:26:09,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 947 transitions. [2021-04-28 21:26:09,453 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7284615384615385 [2021-04-28 21:26:09,454 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 947 transitions. [2021-04-28 21:26:09,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 947 transitions. [2021-04-28 21:26:09,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:26:09,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 947 transitions. [2021-04-28 21:26:09,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 236.75) internal successors, (947), 4 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:26:09,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 325.0) internal successors, (1625), 5 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:26:09,461 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 325.0) internal successors, (1625), 5 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:26:09,461 INFO L185 Difference]: Start difference. First operand has 93 places, 109 transitions, 958 flow. Second operand 4 states and 947 transitions. [2021-04-28 21:26:09,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 110 transitions, 972 flow [2021-04-28 21:26:14,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 110 transitions, 760 flow, removed 43 selfloop flow, removed 12 redundant places. [2021-04-28 21:26:14,101 INFO L241 Difference]: Finished difference. Result has 86 places, 84 transitions, 523 flow [2021-04-28 21:26:14,101 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=325, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=523, PETRI_PLACES=86, PETRI_TRANSITIONS=84} [2021-04-28 21:26:14,101 INFO L343 CegarLoopForPetriNet]: 129 programPoint places, -43 predicate places. [2021-04-28 21:26:14,101 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:26:14,102 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 84 transitions, 523 flow [2021-04-28 21:26:14,102 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 84 transitions, 523 flow [2021-04-28 21:26:14,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 84 transitions, 523 flow [2021-04-28 21:26:14,265 INFO L129 PetriNetUnfolder]: 499/2099 cut-off events. [2021-04-28 21:26:14,265 INFO L130 PetriNetUnfolder]: For 1877/2023 co-relation queries the response was YES. [2021-04-28 21:26:14,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7530 conditions, 2099 events. 499/2099 cut-off events. For 1877/2023 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 25410 event pairs, 0 based on Foata normal form. 2/691 useless extension candidates. Maximal degree in co-relation 7503. Up to 1350 conditions per place. [2021-04-28 21:26:14,290 INFO L146 LiptonReduction]: Number of co-enabled transitions 998 [2021-04-28 21:26:14,560 INFO L158 LiptonReduction]: Checked pairs total: 102 [2021-04-28 21:26:14,560 INFO L160 LiptonReduction]: Total number of compositions: 2 [2021-04-28 21:26:14,561 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 460 [2021-04-28 21:26:14,562 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 84 transitions, 525 flow [2021-04-28 21:26:14,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:26:14,562 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:26:14,563 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:26:14,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-28 21:26:14,563 INFO L428 AbstractCegarLoop]: === Iteration 14 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:26:14,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:26:14,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1249725984, now seen corresponding path program 1 times [2021-04-28 21:26:14,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:26:14,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386596527] [2021-04-28 21:26:14,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:26:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 21:26:14,609 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 21:26:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 21:26:14,656 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 21:26:14,696 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-28 21:26:14,696 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-28 21:26:14,697 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-04-28 21:26:14,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 09:26:14 BasicIcfg [2021-04-28 21:26:14,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 21:26:14,814 INFO L168 Benchmark]: Toolchain (without parser) took 130785.31 ms. Allocated memory was 302.0 MB in the beginning and 6.1 GB in the end (delta: 5.8 GB). Free memory was 276.8 MB in the beginning and 5.4 GB in the end (delta: -5.1 GB). Peak memory consumption was 665.6 MB. Max. memory is 16.0 GB. [2021-04-28 21:26:14,814 INFO L168 Benchmark]: CDTParser took 0.85 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 21:26:14,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 927.50 ms. Allocated memory is still 302.0 MB. Free memory was 273.7 MB in the beginning and 280.8 MB in the end (delta: -7.1 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.0 GB. [2021-04-28 21:26:14,815 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.08 ms. Allocated memory is still 302.0 MB. Free memory was 280.8 MB in the beginning and 277.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-04-28 21:26:14,815 INFO L168 Benchmark]: Boogie Preprocessor took 39.25 ms. Allocated memory is still 302.0 MB. Free memory was 277.6 MB in the beginning and 275.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 21:26:14,815 INFO L168 Benchmark]: RCFGBuilder took 2079.26 ms. Allocated memory was 302.0 MB in the beginning and 392.2 MB in the end (delta: 90.2 MB). Free memory was 275.5 MB in the beginning and 333.0 MB in the end (delta: -57.5 MB). Peak memory consumption was 170.0 MB. Max. memory is 16.0 GB. [2021-04-28 21:26:14,816 INFO L168 Benchmark]: TraceAbstraction took 127602.04 ms. Allocated memory was 392.2 MB in the beginning and 6.1 GB in the end (delta: 5.7 GB). Free memory was 332.0 MB in the beginning and 5.4 GB in the end (delta: -5.1 GB). Peak memory consumption was 627.8 MB. Max. memory is 16.0 GB. [2021-04-28 21:26:14,821 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 927.50 ms. Allocated memory is still 302.0 MB. Free memory was 273.7 MB in the beginning and 280.8 MB in the end (delta: -7.1 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 70.08 ms. Allocated memory is still 302.0 MB. Free memory was 280.8 MB in the beginning and 277.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 39.25 ms. Allocated memory is still 302.0 MB. Free memory was 277.6 MB in the beginning and 275.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 2079.26 ms. Allocated memory was 302.0 MB in the beginning and 392.2 MB in the end (delta: 90.2 MB). Free memory was 275.5 MB in the beginning and 333.0 MB in the end (delta: -57.5 MB). Peak memory consumption was 170.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 127602.04 ms. Allocated memory was 392.2 MB in the beginning and 6.1 GB in the end (delta: 5.7 GB). Free memory was 332.0 MB in the beginning and 5.4 GB in the end (delta: -5.1 GB). Peak memory consumption was 627.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 92320.9ms, 105 PlacesBefore, 129 PlacesAfterwards, 97 TransitionsBefore, 121 TransitionsAfterwards, 1738 CoEnabledTransitionPairs, 8 FixpointIterations, 140 TrivialSequentialCompositions, 82 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 223 TotalNumberOfCompositions, 14838 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3572, positive: 3324, positive conditional: 3324, positive unconditional: 0, negative: 248, negative conditional: 248, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1919, positive: 1843, positive conditional: 0, positive unconditional: 1843, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1919, positive: 1843, positive conditional: 0, positive unconditional: 1843, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1919, positive: 1826, positive conditional: 0, positive unconditional: 1826, negative: 93, negative conditional: 0, negative unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 93, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2196, positive: 250, positive conditional: 0, positive unconditional: 250, negative: 1946, negative conditional: 0, negative unconditional: 1946, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3572, positive: 1481, positive conditional: 1481, positive unconditional: 0, negative: 172, negative conditional: 172, negative unconditional: 0, unknown: 1919, unknown conditional: 1919, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1919, Positive cache size: 1843, Positive conditional cache size: 1843, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 334.1ms, 125 PlacesBefore, 50 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 972 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 906 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 236, positive: 204, positive conditional: 204, positive unconditional: 0, negative: 32, negative conditional: 32, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 109, positive: 91, positive conditional: 8, positive unconditional: 83, negative: 18, negative conditional: 2, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 109, positive: 91, positive conditional: 8, positive unconditional: 83, negative: 18, negative conditional: 2, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 109, positive: 91, positive conditional: 0, positive unconditional: 91, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 18, negative conditional: 2, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 315, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 315, negative conditional: 57, negative unconditional: 257, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 236, positive: 113, positive conditional: 113, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 109, unknown conditional: 109, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2028, Positive cache size: 1934, Positive conditional cache size: 1934, Positive unconditional cache size: 0, Negative cache size: 94, Negative conditional cache size: 94, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 714.5ms, 51 PlacesBefore, 51 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 1058 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 1356 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 240, positive: 193, positive conditional: 193, positive unconditional: 0, negative: 47, negative conditional: 47, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 52, positive: 41, positive conditional: 2, positive unconditional: 39, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 52, positive: 41, positive conditional: 2, positive unconditional: 39, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 52, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 434, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 375, negative conditional: 0, negative unconditional: 375, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 240, positive: 152, positive conditional: 152, positive unconditional: 0, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 52, unknown conditional: 52, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2080, Positive cache size: 1975, Positive conditional cache size: 1975, Positive unconditional cache size: 0, Negative cache size: 105, Negative conditional cache size: 105, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 418.3ms, 53 PlacesBefore, 53 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 1048 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 597 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 60, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 4, positive conditional: 1, positive unconditional: 3, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 402, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 402, negative conditional: 0, negative unconditional: 402, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 60, positive: 35, positive conditional: 35, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2090, Positive cache size: 1979, Positive conditional cache size: 1979, Positive unconditional cache size: 0, Negative cache size: 111, Negative conditional cache size: 111, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 165.3ms, 56 PlacesBefore, 56 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 1274 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 410 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 76, positive: 63, positive conditional: 63, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 9, positive conditional: 6, positive unconditional: 3, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 9, positive conditional: 6, positive unconditional: 3, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 138, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 138, negative conditional: 113, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 76, positive: 54, positive conditional: 54, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2102, Positive cache size: 1988, Positive conditional cache size: 1988, Positive unconditional cache size: 0, Negative cache size: 114, Negative conditional cache size: 114, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.8ms, 62 PlacesBefore, 62 PlacesAfterwards, 58 TransitionsBefore, 58 TransitionsAfterwards, 1508 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 255 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 83, positive: 76, positive conditional: 76, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 8, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 8, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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: 83, positive: 64, positive conditional: 64, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2114, Positive cache size: 2000, Positive conditional cache size: 2000, Positive unconditional cache size: 0, Negative cache size: 114, Negative conditional cache size: 114, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 110.0ms, 68 PlacesBefore, 68 PlacesAfterwards, 63 TransitionsBefore, 63 TransitionsAfterwards, 1630 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 425 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 105, positive: 93, positive conditional: 93, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 10, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 10, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 35, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 105, positive: 82, positive conditional: 82, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2126, Positive cache size: 2011, Positive conditional cache size: 2011, Positive unconditional cache size: 0, Negative cache size: 115, Negative conditional cache size: 115, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 77.2ms, 72 PlacesBefore, 72 PlacesAfterwards, 72 TransitionsBefore, 72 TransitionsAfterwards, 1812 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 546 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 194, positive: 179, positive conditional: 179, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 19, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 19, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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: 194, positive: 160, positive conditional: 160, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 19, unknown conditional: 19, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2145, Positive cache size: 2030, Positive conditional cache size: 2030, Positive unconditional cache size: 0, Negative cache size: 115, Negative conditional cache size: 115, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 81.0ms, 77 PlacesBefore, 77 PlacesAfterwards, 73 TransitionsBefore, 73 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 538 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 176, positive: 161, positive conditional: 161, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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: 176, positive: 146, positive conditional: 146, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2160, Positive cache size: 2045, Positive conditional cache size: 2045, Positive unconditional cache size: 0, Negative cache size: 115, Negative conditional cache size: 115, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1620.7ms, 82 PlacesBefore, 82 PlacesAfterwards, 95 TransitionsBefore, 95 TransitionsAfterwards, 2570 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 616 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 246, positive: 234, positive conditional: 234, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20, positive: 20, positive conditional: 10, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20, positive: 20, positive conditional: 10, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 20, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 246, positive: 214, positive conditional: 214, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 20, unknown conditional: 20, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2180, Positive cache size: 2065, Positive conditional cache size: 2065, Positive unconditional cache size: 0, Negative cache size: 115, Negative conditional cache size: 115, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1369.7ms, 88 PlacesBefore, 88 PlacesAfterwards, 114 TransitionsBefore, 114 TransitionsAfterwards, 2938 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 588 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 152, positive: 143, positive conditional: 143, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27, positive: 27, positive conditional: 25, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 27, positive: 27, positive conditional: 25, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 27, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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: 152, positive: 116, positive conditional: 116, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 27, unknown conditional: 27, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2207, Positive cache size: 2092, Positive conditional cache size: 2092, Positive unconditional cache size: 0, Negative cache size: 115, Negative conditional cache size: 115, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1744.0ms, 88 PlacesBefore, 88 PlacesAfterwards, 114 TransitionsBefore, 114 TransitionsAfterwards, 2936 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 588 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 145, positive: 136, positive conditional: 136, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, positive: 22, positive conditional: 20, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 22, positive: 22, positive conditional: 20, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 22, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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: 145, positive: 114, positive conditional: 114, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2229, Positive cache size: 2114, Positive conditional cache size: 2114, Positive unconditional cache size: 0, Negative cache size: 115, Negative conditional cache size: 115, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 675.6ms, 96 PlacesBefore, 93 PlacesAfterwards, 109 TransitionsBefore, 109 TransitionsAfterwards, 2378 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 716 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 270, positive: 257, positive conditional: 257, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 54, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 54, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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: 270, positive: 203, positive conditional: 203, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 54, unknown conditional: 54, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2283, Positive cache size: 2168, Positive conditional cache size: 2168, Positive unconditional cache size: 0, Negative cache size: 115, Negative conditional cache size: 115, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 458.7ms, 86 PlacesBefore, 78 PlacesAfterwards, 84 TransitionsBefore, 84 TransitionsAfterwards, 998 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 102 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 102, positive: 102, positive conditional: 102, positive unconditional: 0, 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: 45, positive: 45, positive conditional: 45, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 45, positive: 45, positive conditional: 45, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 45, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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: 102, positive: 57, positive conditional: 57, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 45, unknown conditional: 45, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2328, Positive cache size: 2213, Positive conditional cache size: 2213, Positive unconditional cache size: 0, Negative cache size: 115, Negative conditional cache size: 115, Negative unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L713] 0 int __unbuffered_p2_EBX = 0; [L715] 0 int a = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L722] 0 _Bool y$flush_delayed; [L723] 0 int y$mem_tmp; [L724] 0 _Bool y$r_buff0_thd0; [L725] 0 _Bool y$r_buff0_thd1; [L726] 0 _Bool y$r_buff0_thd2; [L727] 0 _Bool y$r_buff0_thd3; [L728] 0 _Bool y$r_buff1_thd0; [L729] 0 _Bool y$r_buff1_thd1; [L730] 0 _Bool y$r_buff1_thd2; [L731] 0 _Bool y$r_buff1_thd3; [L732] 0 _Bool y$read_delayed; [L733] 0 int *y$read_delayed_var; [L734] 0 int y$w_buff0; [L735] 0 _Bool y$w_buff0_used; [L736] 0 int y$w_buff1; [L737] 0 _Bool y$w_buff1_used; [L739] 0 int z = 0; [L740] 0 _Bool weak$$choice0; [L741] 0 _Bool weak$$choice2; [L823] 0 pthread_t t1211; [L824] FCALL, FORK 0 pthread_create(&t1211, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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] [L825] 0 pthread_t t1212; [L826] FCALL, FORK 0 pthread_create(&t1212, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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] [L827] 0 pthread_t t1213; [L828] FCALL, FORK 0 pthread_create(&t1213, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p2_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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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] [L780] 3 y$w_buff1 = y$w_buff0 [L781] 3 y$w_buff0 = 2 [L782] 3 y$w_buff1_used = y$w_buff0_used [L783] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L785] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L786] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L787] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L788] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L789] 3 y$r_buff0_thd3 = (_Bool)1 [L792] 3 z = 1 [L795] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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] [L798] 3 __unbuffered_p2_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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] [L745] 1 a = 1 [L748] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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] [L753] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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] [L760] 2 x = 2 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L763] 2 y = 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L766] 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) [L766] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L766] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L766] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L767] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L767] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L768] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L768] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L769] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L769] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L770] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L770] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L773] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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] [L801] 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) [L801] 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) [L802] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L802] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L803] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L803] 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 [L804] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L804] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L805] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L805] 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 [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L810] 3 return 0; [L830] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L834] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L834] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L834] 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) [L834] 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) [L835] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L835] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L836] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L836] 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 [L837] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L837] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L838] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L838] 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 [L841] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L842] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L843] 0 y$flush_delayed = weak$$choice2 [L844] 0 y$mem_tmp = y [L845] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L845] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L846] EXPR 0 weak$$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$w_buff0)) [L846] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L847] EXPR 0 weak$$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$w_buff1)) [L847] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L848] EXPR 0 weak$$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)) [L848] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L849] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L849] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L850] EXPR 0 weak$$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)) [L850] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L851] EXPR 0 weak$$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$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L851] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L852] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L853] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L853] 0 y = y$flush_delayed ? y$mem_tmp : y [L854] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=51, 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$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 99 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 25.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 127339.5ms, OverallIterations: 14, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 24579.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 92446.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 65 SDtfs, 64 SDslu, 18 SDs, 0 SdLazy, 537 SolverSat, 211 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1183.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 805.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=958occurred in iteration=12, InterpolantAutomatonStates: 64, 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: 60.4ms SsaConstructionTime, 607.9ms SatisfiabilityAnalysisTime, 1384.3ms InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 155 ConstructedInterpolants, 0 QuantifiedInterpolants, 958 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...