/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/mix057_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:25:03,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:25:03,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:25:03,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-26 00:25:03,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:25:03,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:25:03,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:25:03,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:25:03,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:25:03,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:25:03,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:25:03,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:25:03,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:25:03,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:25:03,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:25:03,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:25:03,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:25:03,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:25:03,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:25:03,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:25:03,158 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 [2021-03-26 00:25:03,185 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:25:03,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:25:03,187 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:25:03,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:25:03,188 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:25:03,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:25:03,188 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:25:03,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:25:03,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:25:03,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:25:03,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:25:03,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:25:03,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:25:03,189 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:25:03,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:25:03,190 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:25:03,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:25:03,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:25:03,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:25:03,190 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:25:03,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:25:03,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:25:03,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:25:03,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:25:03,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:25:03,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:25:03,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:25:03,191 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:25:03,191 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:25:03,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:25:03,192 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:25:03,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:25:03,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:25:03,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:25:03,434 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:25:03,434 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:25:03,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_tso.opt.i [2021-03-26 00:25:03,489 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed8d0b2e5/f4e231e5e4ba40a996de3b6b2026d8d8/FLAG4f273cb73 [2021-03-26 00:25:04,096 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:25:04,096 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_tso.opt.i [2021-03-26 00:25:04,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed8d0b2e5/f4e231e5e4ba40a996de3b6b2026d8d8/FLAG4f273cb73 [2021-03-26 00:25:04,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed8d0b2e5/f4e231e5e4ba40a996de3b6b2026d8d8 [2021-03-26 00:25:04,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:25:04,521 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:25:04,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:25:04,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:25:04,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:25:04,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:25:04" (1/1) ... [2021-03-26 00:25:04,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b0e2a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:25:04, skipping insertion in model container [2021-03-26 00:25:04,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:25:04" (1/1) ... [2021-03-26 00:25:04,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:25:04,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:25:04,648 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/mix057_tso.opt.i[948,961] [2021-03-26 00:25:04,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:25:04,773 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:25:04,781 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/mix057_tso.opt.i[948,961] [2021-03-26 00:25:04,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:25:04,862 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:25:04,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:25:04 WrapperNode [2021-03-26 00:25:04,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:25:04,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:25:04,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:25:04,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:25:04,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:25:04" (1/1) ... [2021-03-26 00:25:04,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:25:04" (1/1) ... [2021-03-26 00:25:04,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:25:04,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:25:04,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:25:04,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:25:04,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:25:04" (1/1) ... [2021-03-26 00:25:04,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:25:04" (1/1) ... [2021-03-26 00:25:04,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:25:04" (1/1) ... [2021-03-26 00:25:04,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:25:04" (1/1) ... [2021-03-26 00:25:04,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:25:04" (1/1) ... [2021-03-26 00:25:04,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:25:04" (1/1) ... [2021-03-26 00:25:04,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:25:04" (1/1) ... [2021-03-26 00:25:04,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:25:04,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:25:04,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:25:04,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:25:04,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:25:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:25:04,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:25:04,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:25:04,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:25:04,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:25:04,971 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:25:04,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:25:04,971 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:25:04,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:25:04,971 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:25:04,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:25:04,971 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-26 00:25:04,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-26 00:25:04,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:25:04,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:25:04,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:25:04,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:25:04,973 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 00:25:06,126 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:25:06,126 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-26 00:25:06,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:25:06 BoogieIcfgContainer [2021-03-26 00:25:06,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:25:06,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:25:06,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:25:06,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:25:06,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:25:04" (1/3) ... [2021-03-26 00:25:06,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@446bd682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:25:06, skipping insertion in model container [2021-03-26 00:25:06,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:25:04" (2/3) ... [2021-03-26 00:25:06,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@446bd682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:25:06, skipping insertion in model container [2021-03-26 00:25:06,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:25:06" (3/3) ... [2021-03-26 00:25:06,132 INFO L111 eAbstractionObserver]: Analyzing ICFG mix057_tso.opt.i [2021-03-26 00:25:06,136 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:25:06,139 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-26 00:25:06,140 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:25:06,166 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,167 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,167 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,167 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,167 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,168 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,168 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,168 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,168 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,168 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,169 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,169 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,169 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,169 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,170 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,170 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,172 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,172 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,172 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,172 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,173 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,173 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,173 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,173 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,173 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,173 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,173 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,173 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,173 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,173 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,173 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,174 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,174 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,174 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,174 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,174 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,174 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,174 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,174 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,174 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,175 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,175 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,175 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,175 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,175 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,175 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,175 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,176 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,176 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,176 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,176 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,177 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,177 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,177 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,177 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,179 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,179 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,179 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,179 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,179 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,179 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,179 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,179 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,179 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,179 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,180 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,180 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,180 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,180 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,181 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,181 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,181 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,181 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,181 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,181 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,181 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,181 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,183 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,183 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,183 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,183 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:25:06,184 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:25:06,195 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-26 00:25:06,207 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:25:06,207 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:25:06,207 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:25:06,207 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:25:06,207 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:25:06,207 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:25:06,207 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:25:06,207 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:25:06,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 244 flow [2021-03-26 00:25:06,238 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-03-26 00:25:06,238 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:25:06,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-03-26 00:25:06,242 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 112 transitions, 244 flow [2021-03-26 00:25:06,245 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 108 transitions, 228 flow [2021-03-26 00:25:06,246 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:06,253 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 108 transitions, 228 flow [2021-03-26 00:25:06,255 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 108 transitions, 228 flow [2021-03-26 00:25:06,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 108 transitions, 228 flow [2021-03-26 00:25:06,268 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-03-26 00:25:06,268 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:25:06,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-03-26 00:25:06,271 INFO L142 LiptonReduction]: Number of co-enabled transitions 2406 [2021-03-26 00:25:07,278 WARN L205 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-03-26 00:25:07,551 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-26 00:25:08,810 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-03-26 00:25:09,375 WARN L205 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-26 00:25:10,212 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-26 00:25:10,596 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-26 00:25:10,698 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-26 00:25:11,917 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-26 00:25:12,176 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-26 00:25:12,743 WARN L205 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-26 00:25:13,315 WARN L205 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-26 00:25:13,689 INFO L154 LiptonReduction]: Checked pairs total: 4010 [2021-03-26 00:25:13,689 INFO L156 LiptonReduction]: Total number of compositions: 75 [2021-03-26 00:25:13,691 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7446 [2021-03-26 00:25:13,699 INFO L129 PetriNetUnfolder]: 0/26 cut-off events. [2021-03-26 00:25:13,699 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:25:13,699 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:13,699 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:13,699 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:13,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:13,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1880455195, now seen corresponding path program 1 times [2021-03-26 00:25:13,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:13,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100615236] [2021-03-26 00:25:13,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:13,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:13,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:25:13,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:13,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:13,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:13,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100615236] [2021-03-26 00:25:13,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:13,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:25:13,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268874706] [2021-03-26 00:25:13,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:25:13,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:13,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:25:13,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:25:13,924 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 187 [2021-03-26 00:25:13,927 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:13,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:13,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 187 [2021-03-26 00:25:13,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:13,968 INFO L129 PetriNetUnfolder]: 23/98 cut-off events. [2021-03-26 00:25:13,968 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:25:13,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 98 events. 23/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 340 event pairs, 3 based on Foata normal form. 6/97 useless extension candidates. Maximal degree in co-relation 140. Up to 37 conditions per place. [2021-03-26 00:25:13,969 INFO L132 encePairwiseOnDemand]: 183/187 looper letters, 7 selfloop transitions, 2 changer transitions 5/43 dead transitions. [2021-03-26 00:25:13,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 43 transitions, 120 flow [2021-03-26 00:25:13,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:25:13,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:25:13,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 506 transitions. [2021-03-26 00:25:13,978 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9019607843137255 [2021-03-26 00:25:13,978 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 506 transitions. [2021-03-26 00:25:13,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 506 transitions. [2021-03-26 00:25:13,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:13,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 506 transitions. [2021-03-26 00:25:13,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:13,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 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) [2021-03-26 00:25:14,000 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 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) [2021-03-26 00:25:14,001 INFO L185 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 3 states and 506 transitions. [2021-03-26 00:25:14,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 43 transitions, 120 flow [2021-03-26 00:25:14,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 43 transitions, 116 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 00:25:14,004 INFO L241 Difference]: Finished difference. Result has 50 places, 35 transitions, 82 flow [2021-03-26 00:25:14,005 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=50, PETRI_TRANSITIONS=35} [2021-03-26 00:25:14,005 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -4 predicate places. [2021-03-26 00:25:14,005 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:14,006 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 35 transitions, 82 flow [2021-03-26 00:25:14,006 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 35 transitions, 82 flow [2021-03-26 00:25:14,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 35 transitions, 82 flow [2021-03-26 00:25:14,009 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-03-26 00:25:14,009 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:25:14,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 35 events. 0/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 00:25:14,010 INFO L142 LiptonReduction]: Number of co-enabled transitions 362 [2021-03-26 00:25:14,302 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-26 00:25:14,422 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-26 00:25:15,100 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-26 00:25:15,363 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-26 00:25:15,921 WARN L205 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-26 00:25:16,475 WARN L205 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-26 00:25:17,063 INFO L154 LiptonReduction]: Checked pairs total: 1154 [2021-03-26 00:25:17,063 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-26 00:25:17,063 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3058 [2021-03-26 00:25:17,064 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 66 flow [2021-03-26 00:25:17,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:17,065 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:17,065 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:17,065 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:25:17,065 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:17,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:17,065 INFO L82 PathProgramCache]: Analyzing trace with hash 157805214, now seen corresponding path program 1 times [2021-03-26 00:25:17,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:17,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170248117] [2021-03-26 00:25:17,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:17,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:17,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:17,146 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-26 00:25:17,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:25:17,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:17,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170248117] [2021-03-26 00:25:17,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:17,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:25:17,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469397793] [2021-03-26 00:25:17,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:25:17,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:17,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:25:17,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:25:17,152 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 195 [2021-03-26 00:25:17,153 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:17,153 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:17,153 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 195 [2021-03-26 00:25:17,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:17,195 INFO L129 PetriNetUnfolder]: 3/37 cut-off events. [2021-03-26 00:25:17,195 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:25:17,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 37 events. 3/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 1 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 49. Up to 10 conditions per place. [2021-03-26 00:25:17,195 INFO L132 encePairwiseOnDemand]: 191/195 looper letters, 3 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2021-03-26 00:25:17,195 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 29 transitions, 82 flow [2021-03-26 00:25:17,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:25:17,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:25:17,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 508 transitions. [2021-03-26 00:25:17,198 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8683760683760684 [2021-03-26 00:25:17,198 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 508 transitions. [2021-03-26 00:25:17,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 508 transitions. [2021-03-26 00:25:17,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:17,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 508 transitions. [2021-03-26 00:25:17,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:17,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:17,201 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:17,201 INFO L185 Difference]: Start difference. First operand has 38 places, 27 transitions, 66 flow. Second operand 3 states and 508 transitions. [2021-03-26 00:25:17,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 29 transitions, 82 flow [2021-03-26 00:25:17,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 29 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:25:17,202 INFO L241 Difference]: Finished difference. Result has 39 places, 29 transitions, 81 flow [2021-03-26 00:25:17,202 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2021-03-26 00:25:17,202 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -15 predicate places. [2021-03-26 00:25:17,202 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:17,202 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 29 transitions, 81 flow [2021-03-26 00:25:17,203 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 29 transitions, 81 flow [2021-03-26 00:25:17,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 29 transitions, 81 flow [2021-03-26 00:25:17,206 INFO L129 PetriNetUnfolder]: 3/35 cut-off events. [2021-03-26 00:25:17,207 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:25:17,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 35 events. 3/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 58 event pairs, 1 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 48. Up to 10 conditions per place. [2021-03-26 00:25:17,207 INFO L142 LiptonReduction]: Number of co-enabled transitions 356 [2021-03-26 00:25:17,651 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-03-26 00:25:17,782 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-03-26 00:25:18,057 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-03-26 00:25:18,183 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-03-26 00:25:18,187 INFO L154 LiptonReduction]: Checked pairs total: 996 [2021-03-26 00:25:18,187 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 00:25:18,187 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 985 [2021-03-26 00:25:18,188 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 27 transitions, 77 flow [2021-03-26 00:25:18,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,188 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:18,188 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:18,188 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:25:18,188 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:18,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:18,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1377057789, now seen corresponding path program 1 times [2021-03-26 00:25:18,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:18,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874196648] [2021-03-26 00:25:18,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:18,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:18,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:18,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:18,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874196648] [2021-03-26 00:25:18,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:18,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 00:25:18,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157630233] [2021-03-26 00:25:18,307 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:25:18,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:18,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:25:18,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:25:18,308 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 197 [2021-03-26 00:25:18,309 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,309 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:18,309 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 197 [2021-03-26 00:25:18,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:18,325 INFO L129 PetriNetUnfolder]: 10/58 cut-off events. [2021-03-26 00:25:18,325 INFO L130 PetriNetUnfolder]: For 10/16 co-relation queries the response was YES. [2021-03-26 00:25:18,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 58 events. 10/58 cut-off events. For 10/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 172 event pairs, 3 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 96. Up to 19 conditions per place. [2021-03-26 00:25:18,326 INFO L132 encePairwiseOnDemand]: 193/197 looper letters, 3 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2021-03-26 00:25:18,326 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 29 transitions, 93 flow [2021-03-26 00:25:18,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:25:18,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:25:18,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 523 transitions. [2021-03-26 00:25:18,328 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8849407783417935 [2021-03-26 00:25:18,328 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 523 transitions. [2021-03-26 00:25:18,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 523 transitions. [2021-03-26 00:25:18,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:18,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 523 transitions. [2021-03-26 00:25:18,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,330 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,330 INFO L185 Difference]: Start difference. First operand has 37 places, 27 transitions, 77 flow. Second operand 3 states and 523 transitions. [2021-03-26 00:25:18,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 29 transitions, 93 flow [2021-03-26 00:25:18,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 29 transitions, 90 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:25:18,331 INFO L241 Difference]: Finished difference. Result has 39 places, 29 transitions, 93 flow [2021-03-26 00:25:18,332 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=93, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2021-03-26 00:25:18,332 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -15 predicate places. [2021-03-26 00:25:18,332 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:18,332 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 29 transitions, 93 flow [2021-03-26 00:25:18,332 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 29 transitions, 93 flow [2021-03-26 00:25:18,332 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 29 transitions, 93 flow [2021-03-26 00:25:18,338 INFO L129 PetriNetUnfolder]: 7/45 cut-off events. [2021-03-26 00:25:18,338 INFO L130 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2021-03-26 00:25:18,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 45 events. 7/45 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 121 event pairs, 3 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 78. Up to 15 conditions per place. [2021-03-26 00:25:18,338 INFO L142 LiptonReduction]: Number of co-enabled transitions 394 [2021-03-26 00:25:18,403 INFO L154 LiptonReduction]: Checked pairs total: 280 [2021-03-26 00:25:18,403 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:25:18,403 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-03-26 00:25:18,404 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 93 flow [2021-03-26 00:25:18,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,405 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:18,406 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:18,406 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:25:18,407 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:18,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:18,407 INFO L82 PathProgramCache]: Analyzing trace with hash 370417324, now seen corresponding path program 1 times [2021-03-26 00:25:18,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:18,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034451911] [2021-03-26 00:25:18,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:18,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:18,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:18,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:25:18,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:18,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:18,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:18,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034451911] [2021-03-26 00:25:18,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:18,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:25:18,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845375038] [2021-03-26 00:25:18,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:25:18,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:18,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:25:18,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:25:18,480 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 197 [2021-03-26 00:25:18,480 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,480 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:18,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 197 [2021-03-26 00:25:18,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:18,497 INFO L129 PetriNetUnfolder]: 4/52 cut-off events. [2021-03-26 00:25:18,497 INFO L130 PetriNetUnfolder]: For 26/61 co-relation queries the response was YES. [2021-03-26 00:25:18,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 52 events. 4/52 cut-off events. For 26/61 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 176 event pairs, 1 based on Foata normal form. 4/52 useless extension candidates. Maximal degree in co-relation 99. Up to 15 conditions per place. [2021-03-26 00:25:18,498 INFO L132 encePairwiseOnDemand]: 194/197 looper letters, 3 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2021-03-26 00:25:18,498 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 29 transitions, 105 flow [2021-03-26 00:25:18,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:25:18,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:25:18,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions. [2021-03-26 00:25:18,500 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.883248730964467 [2021-03-26 00:25:18,500 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 522 transitions. [2021-03-26 00:25:18,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 522 transitions. [2021-03-26 00:25:18,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:18,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 522 transitions. [2021-03-26 00:25:18,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,506 INFO L185 Difference]: Start difference. First operand has 39 places, 29 transitions, 93 flow. Second operand 3 states and 522 transitions. [2021-03-26 00:25:18,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 29 transitions, 105 flow [2021-03-26 00:25:18,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 29 transitions, 102 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:25:18,507 INFO L241 Difference]: Finished difference. Result has 41 places, 29 transitions, 101 flow [2021-03-26 00:25:18,507 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2021-03-26 00:25:18,507 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -13 predicate places. [2021-03-26 00:25:18,507 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:18,507 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 29 transitions, 101 flow [2021-03-26 00:25:18,508 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 29 transitions, 101 flow [2021-03-26 00:25:18,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 29 transitions, 101 flow [2021-03-26 00:25:18,514 INFO L129 PetriNetUnfolder]: 4/45 cut-off events. [2021-03-26 00:25:18,514 INFO L130 PetriNetUnfolder]: For 27/43 co-relation queries the response was YES. [2021-03-26 00:25:18,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 45 events. 4/45 cut-off events. For 27/43 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 129 event pairs, 2 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 81. Up to 13 conditions per place. [2021-03-26 00:25:18,516 INFO L142 LiptonReduction]: Number of co-enabled transitions 394 [2021-03-26 00:25:18,518 INFO L154 LiptonReduction]: Checked pairs total: 316 [2021-03-26 00:25:18,518 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:25:18,518 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-26 00:25:18,520 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 101 flow [2021-03-26 00:25:18,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,521 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:18,521 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:18,521 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:25:18,521 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:18,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:18,521 INFO L82 PathProgramCache]: Analyzing trace with hash -921273539, now seen corresponding path program 1 times [2021-03-26 00:25:18,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:18,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305560317] [2021-03-26 00:25:18,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:18,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:18,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 00:25:18,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:18,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:25:18,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:18,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305560317] [2021-03-26 00:25:18,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:18,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 00:25:18,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768241961] [2021-03-26 00:25:18,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:25:18,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:18,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:25:18,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:25:18,607 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 197 [2021-03-26 00:25:18,607 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,607 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:18,607 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 197 [2021-03-26 00:25:18,607 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:18,654 INFO L129 PetriNetUnfolder]: 109/279 cut-off events. [2021-03-26 00:25:18,654 INFO L130 PetriNetUnfolder]: For 318/442 co-relation queries the response was YES. [2021-03-26 00:25:18,655 INFO L84 FinitePrefix]: Finished finitePrefix Result has 656 conditions, 279 events. 109/279 cut-off events. For 318/442 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1553 event pairs, 68 based on Foata normal form. 3/246 useless extension candidates. Maximal degree in co-relation 643. Up to 165 conditions per place. [2021-03-26 00:25:18,656 INFO L132 encePairwiseOnDemand]: 193/197 looper letters, 7 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2021-03-26 00:25:18,656 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 32 transitions, 127 flow [2021-03-26 00:25:18,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:25:18,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:25:18,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 485 transitions. [2021-03-26 00:25:18,658 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8206429780033841 [2021-03-26 00:25:18,658 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 485 transitions. [2021-03-26 00:25:18,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 485 transitions. [2021-03-26 00:25:18,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:18,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 485 transitions. [2021-03-26 00:25:18,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,661 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,661 INFO L185 Difference]: Start difference. First operand has 41 places, 29 transitions, 101 flow. Second operand 3 states and 485 transitions. [2021-03-26 00:25:18,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 32 transitions, 127 flow [2021-03-26 00:25:18,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 32 transitions, 122 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 00:25:18,663 INFO L241 Difference]: Finished difference. Result has 43 places, 31 transitions, 115 flow [2021-03-26 00:25:18,663 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=115, PETRI_PLACES=43, PETRI_TRANSITIONS=31} [2021-03-26 00:25:18,663 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -11 predicate places. [2021-03-26 00:25:18,663 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:18,663 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 31 transitions, 115 flow [2021-03-26 00:25:18,663 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 31 transitions, 115 flow [2021-03-26 00:25:18,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 31 transitions, 115 flow [2021-03-26 00:25:18,673 INFO L129 PetriNetUnfolder]: 15/89 cut-off events. [2021-03-26 00:25:18,673 INFO L130 PetriNetUnfolder]: For 101/124 co-relation queries the response was YES. [2021-03-26 00:25:18,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 89 events. 15/89 cut-off events. For 101/124 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 407 event pairs, 7 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 191. Up to 29 conditions per place. [2021-03-26 00:25:18,675 INFO L142 LiptonReduction]: Number of co-enabled transitions 428 [2021-03-26 00:25:18,741 INFO L154 LiptonReduction]: Checked pairs total: 240 [2021-03-26 00:25:18,741 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:25:18,741 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 78 [2021-03-26 00:25:18,743 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 31 transitions, 115 flow [2021-03-26 00:25:18,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,743 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:18,743 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:18,743 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:25:18,743 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:18,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:18,750 INFO L82 PathProgramCache]: Analyzing trace with hash -583256081, now seen corresponding path program 1 times [2021-03-26 00:25:18,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:18,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984599945] [2021-03-26 00:25:18,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:18,825 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-26 00:25:18,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 00:25:18,850 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 00:25:18,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 00:25:18,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:18,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:25:18,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:18,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984599945] [2021-03-26 00:25:18,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:18,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:25:18,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163541148] [2021-03-26 00:25:18,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:25:18,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:18,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:25:18,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:25:18,886 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 197 [2021-03-26 00:25:18,886 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 31 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 152.8) internal successors, (764), 5 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,886 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:18,886 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 197 [2021-03-26 00:25:18,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:18,964 INFO L129 PetriNetUnfolder]: 98/261 cut-off events. [2021-03-26 00:25:18,964 INFO L130 PetriNetUnfolder]: For 501/591 co-relation queries the response was YES. [2021-03-26 00:25:18,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 261 events. 98/261 cut-off events. For 501/591 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1438 event pairs, 36 based on Foata normal form. 7/240 useless extension candidates. Maximal degree in co-relation 673. Up to 129 conditions per place. [2021-03-26 00:25:18,966 INFO L132 encePairwiseOnDemand]: 192/197 looper letters, 8 selfloop transitions, 6 changer transitions 0/36 dead transitions. [2021-03-26 00:25:18,966 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 36 transitions, 163 flow [2021-03-26 00:25:18,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:25:18,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:25:18,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 622 transitions. [2021-03-26 00:25:18,968 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7893401015228426 [2021-03-26 00:25:18,968 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 622 transitions. [2021-03-26 00:25:18,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 622 transitions. [2021-03-26 00:25:18,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:18,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 622 transitions. [2021-03-26 00:25:18,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 155.5) internal successors, (622), 4 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,971 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:18,971 INFO L185 Difference]: Start difference. First operand has 43 places, 31 transitions, 115 flow. Second operand 4 states and 622 transitions. [2021-03-26 00:25:18,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 36 transitions, 163 flow [2021-03-26 00:25:18,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 160 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:25:18,972 INFO L241 Difference]: Finished difference. Result has 46 places, 33 transitions, 137 flow [2021-03-26 00:25:18,972 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=137, PETRI_PLACES=46, PETRI_TRANSITIONS=33} [2021-03-26 00:25:18,973 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -8 predicate places. [2021-03-26 00:25:18,973 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:18,973 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 33 transitions, 137 flow [2021-03-26 00:25:18,973 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 33 transitions, 137 flow [2021-03-26 00:25:18,973 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 33 transitions, 137 flow [2021-03-26 00:25:18,983 INFO L129 PetriNetUnfolder]: 23/114 cut-off events. [2021-03-26 00:25:18,983 INFO L130 PetriNetUnfolder]: For 235/274 co-relation queries the response was YES. [2021-03-26 00:25:18,984 INFO L84 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 114 events. 23/114 cut-off events. For 235/274 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 559 event pairs, 9 based on Foata normal form. 1/100 useless extension candidates. Maximal degree in co-relation 281. Up to 36 conditions per place. [2021-03-26 00:25:18,984 INFO L142 LiptonReduction]: Number of co-enabled transitions 464 [2021-03-26 00:25:19,199 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2021-03-26 00:25:19,548 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 80 [2021-03-26 00:25:19,667 INFO L154 LiptonReduction]: Checked pairs total: 465 [2021-03-26 00:25:19,667 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:25:19,667 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 694 [2021-03-26 00:25:19,669 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 33 transitions, 140 flow [2021-03-26 00:25:19,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 152.8) internal successors, (764), 5 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:19,669 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:19,669 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:19,669 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:25:19,670 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:19,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:19,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1401912370, now seen corresponding path program 1 times [2021-03-26 00:25:19,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:19,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888303823] [2021-03-26 00:25:19,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:19,737 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-26 00:25:19,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-26 00:25:19,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:19,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:25:19,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:19,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:25:19,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:19,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888303823] [2021-03-26 00:25:19,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:19,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:25:19,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097459202] [2021-03-26 00:25:19,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:25:19,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:19,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:25:19,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:25:19,770 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 198 [2021-03-26 00:25:19,771 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 33 transitions, 140 flow. Second operand has 5 states, 5 states have (on average 152.8) internal successors, (764), 5 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:19,771 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:19,771 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 198 [2021-03-26 00:25:19,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:19,848 INFO L129 PetriNetUnfolder]: 87/241 cut-off events. [2021-03-26 00:25:19,848 INFO L130 PetriNetUnfolder]: For 605/689 co-relation queries the response was YES. [2021-03-26 00:25:19,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 716 conditions, 241 events. 87/241 cut-off events. For 605/689 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1311 event pairs, 18 based on Foata normal form. 5/215 useless extension candidates. Maximal degree in co-relation 699. Up to 136 conditions per place. [2021-03-26 00:25:19,850 INFO L132 encePairwiseOnDemand]: 192/198 looper letters, 9 selfloop transitions, 6 changer transitions 0/37 dead transitions. [2021-03-26 00:25:19,850 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 37 transitions, 180 flow [2021-03-26 00:25:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:25:19,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:25:19,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 623 transitions. [2021-03-26 00:25:19,852 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7866161616161617 [2021-03-26 00:25:19,852 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 623 transitions. [2021-03-26 00:25:19,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 623 transitions. [2021-03-26 00:25:19,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:19,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 623 transitions. [2021-03-26 00:25:19,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 155.75) internal successors, (623), 4 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:19,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:19,855 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:19,855 INFO L185 Difference]: Start difference. First operand has 46 places, 33 transitions, 140 flow. Second operand 4 states and 623 transitions. [2021-03-26 00:25:19,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 37 transitions, 180 flow [2021-03-26 00:25:19,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 37 transitions, 170 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-03-26 00:25:19,857 INFO L241 Difference]: Finished difference. Result has 49 places, 35 transitions, 157 flow [2021-03-26 00:25:19,857 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=157, PETRI_PLACES=49, PETRI_TRANSITIONS=35} [2021-03-26 00:25:19,857 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -5 predicate places. [2021-03-26 00:25:19,857 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:19,858 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 35 transitions, 157 flow [2021-03-26 00:25:19,858 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 35 transitions, 157 flow [2021-03-26 00:25:19,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 35 transitions, 157 flow [2021-03-26 00:25:19,888 INFO L129 PetriNetUnfolder]: 35/138 cut-off events. [2021-03-26 00:25:19,888 INFO L130 PetriNetUnfolder]: For 558/602 co-relation queries the response was YES. [2021-03-26 00:25:19,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 138 events. 35/138 cut-off events. For 558/602 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 714 event pairs, 17 based on Foata normal form. 1/119 useless extension candidates. Maximal degree in co-relation 407. Up to 51 conditions per place. [2021-03-26 00:25:19,890 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-26 00:25:19,964 INFO L154 LiptonReduction]: Checked pairs total: 229 [2021-03-26 00:25:19,964 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:25:19,964 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 107 [2021-03-26 00:25:19,965 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 35 transitions, 157 flow [2021-03-26 00:25:19,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 152.8) internal successors, (764), 5 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:19,965 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:19,965 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:19,965 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:25:19,966 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:19,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:19,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1374681785, now seen corresponding path program 1 times [2021-03-26 00:25:19,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:19,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886725479] [2021-03-26 00:25:19,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:20,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:20,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:25:20,039 INFO L142 QuantifierPusher]: treesize reduction 7, result has 78.1 percent of original size [2021-03-26 00:25:20,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-26 00:25:20,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:20,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886725479] [2021-03-26 00:25:20,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:20,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:25:20,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106269382] [2021-03-26 00:25:20,056 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:25:20,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:20,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:25:20,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:25:20,057 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 198 [2021-03-26 00:25:20,057 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 35 transitions, 157 flow. Second operand has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,057 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:20,057 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 198 [2021-03-26 00:25:20,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:20,121 INFO L129 PetriNetUnfolder]: 80/225 cut-off events. [2021-03-26 00:25:20,121 INFO L130 PetriNetUnfolder]: For 728/792 co-relation queries the response was YES. [2021-03-26 00:25:20,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 706 conditions, 225 events. 80/225 cut-off events. For 728/792 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1201 event pairs, 19 based on Foata normal form. 10/209 useless extension candidates. Maximal degree in co-relation 687. Up to 112 conditions per place. [2021-03-26 00:25:20,123 INFO L132 encePairwiseOnDemand]: 195/198 looper letters, 10 selfloop transitions, 4 changer transitions 0/36 dead transitions. [2021-03-26 00:25:20,123 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 36 transitions, 187 flow [2021-03-26 00:25:20,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:25:20,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:25:20,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2021-03-26 00:25:20,124 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8013468013468014 [2021-03-26 00:25:20,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2021-03-26 00:25:20,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2021-03-26 00:25:20,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:20,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2021-03-26 00:25:20,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,126 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,126 INFO L185 Difference]: Start difference. First operand has 49 places, 35 transitions, 157 flow. Second operand 3 states and 476 transitions. [2021-03-26 00:25:20,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 36 transitions, 187 flow [2021-03-26 00:25:20,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 36 transitions, 176 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 00:25:20,130 INFO L241 Difference]: Finished difference. Result has 50 places, 35 transitions, 160 flow [2021-03-26 00:25:20,130 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=50, PETRI_TRANSITIONS=35} [2021-03-26 00:25:20,130 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, -4 predicate places. [2021-03-26 00:25:20,130 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:20,130 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 35 transitions, 160 flow [2021-03-26 00:25:20,130 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 35 transitions, 160 flow [2021-03-26 00:25:20,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 35 transitions, 160 flow [2021-03-26 00:25:20,142 INFO L129 PetriNetUnfolder]: 37/128 cut-off events. [2021-03-26 00:25:20,142 INFO L130 PetriNetUnfolder]: For 591/628 co-relation queries the response was YES. [2021-03-26 00:25:20,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 128 events. 37/128 cut-off events. For 591/628 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 592 event pairs, 16 based on Foata normal form. 2/113 useless extension candidates. Maximal degree in co-relation 395. Up to 45 conditions per place. [2021-03-26 00:25:20,143 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-26 00:25:20,162 INFO L154 LiptonReduction]: Checked pairs total: 239 [2021-03-26 00:25:20,162 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:25:20,162 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-03-26 00:25:20,163 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 35 transitions, 160 flow [2021-03-26 00:25:20,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 156.0) internal successors, (624), 4 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,163 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:20,163 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:20,163 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 00:25:20,163 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:20,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:20,163 INFO L82 PathProgramCache]: Analyzing trace with hash -571244090, now seen corresponding path program 1 times [2021-03-26 00:25:20,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:20,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385523080] [2021-03-26 00:25:20,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:20,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:20,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:20,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:20,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:20,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:20,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 00:25:20,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:20,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 00:25:20,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:20,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385523080] [2021-03-26 00:25:20,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:20,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:25:20,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777458724] [2021-03-26 00:25:20,234 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:25:20,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:20,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:25:20,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:25:20,234 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-03-26 00:25:20,235 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 35 transitions, 160 flow. Second operand has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,235 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:20,235 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-03-26 00:25:20,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:20,300 INFO L129 PetriNetUnfolder]: 105/275 cut-off events. [2021-03-26 00:25:20,300 INFO L130 PetriNetUnfolder]: For 1040/1116 co-relation queries the response was YES. [2021-03-26 00:25:20,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 938 conditions, 275 events. 105/275 cut-off events. For 1040/1116 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1492 event pairs, 23 based on Foata normal form. 5/250 useless extension candidates. Maximal degree in co-relation 918. Up to 147 conditions per place. [2021-03-26 00:25:20,302 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 10 selfloop transitions, 11 changer transitions 0/43 dead transitions. [2021-03-26 00:25:20,302 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 43 transitions, 245 flow [2021-03-26 00:25:20,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:25:20,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:25:20,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 822 transitions. [2021-03-26 00:25:20,304 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8303030303030303 [2021-03-26 00:25:20,304 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 822 transitions. [2021-03-26 00:25:20,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 822 transitions. [2021-03-26 00:25:20,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:20,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 822 transitions. [2021-03-26 00:25:20,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 164.4) internal successors, (822), 5 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,307 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,307 INFO L185 Difference]: Start difference. First operand has 50 places, 35 transitions, 160 flow. Second operand 5 states and 822 transitions. [2021-03-26 00:25:20,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 43 transitions, 245 flow [2021-03-26 00:25:20,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 43 transitions, 235 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:25:20,310 INFO L241 Difference]: Finished difference. Result has 54 places, 42 transitions, 236 flow [2021-03-26 00:25:20,310 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2021-03-26 00:25:20,310 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 0 predicate places. [2021-03-26 00:25:20,311 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:20,311 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 42 transitions, 236 flow [2021-03-26 00:25:20,311 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 42 transitions, 236 flow [2021-03-26 00:25:20,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 42 transitions, 236 flow [2021-03-26 00:25:20,332 INFO L129 PetriNetUnfolder]: 81/207 cut-off events. [2021-03-26 00:25:20,332 INFO L130 PetriNetUnfolder]: For 1531/1587 co-relation queries the response was YES. [2021-03-26 00:25:20,333 INFO L84 FinitePrefix]: Finished finitePrefix Result has 878 conditions, 207 events. 81/207 cut-off events. For 1531/1587 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 985 event pairs, 20 based on Foata normal form. 3/176 useless extension candidates. Maximal degree in co-relation 858. Up to 79 conditions per place. [2021-03-26 00:25:20,334 INFO L142 LiptonReduction]: Number of co-enabled transitions 618 [2021-03-26 00:25:20,339 INFO L154 LiptonReduction]: Checked pairs total: 300 [2021-03-26 00:25:20,339 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:25:20,339 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-03-26 00:25:20,339 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 236 flow [2021-03-26 00:25:20,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,340 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:20,340 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:20,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 00:25:20,341 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:20,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:20,342 INFO L82 PathProgramCache]: Analyzing trace with hash -711515589, now seen corresponding path program 1 times [2021-03-26 00:25:20,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:20,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179774132] [2021-03-26 00:25:20,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:20,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:20,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:25:20,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:20,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:20,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:20,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179774132] [2021-03-26 00:25:20,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:20,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:25:20,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434325794] [2021-03-26 00:25:20,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:25:20,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:20,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:25:20,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:25:20,376 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 198 [2021-03-26 00:25:20,376 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 236 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,376 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:20,376 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 198 [2021-03-26 00:25:20,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:20,408 INFO L129 PetriNetUnfolder]: 78/251 cut-off events. [2021-03-26 00:25:20,408 INFO L130 PetriNetUnfolder]: For 3527/3964 co-relation queries the response was YES. [2021-03-26 00:25:20,409 INFO L84 FinitePrefix]: Finished finitePrefix Result has 986 conditions, 251 events. 78/251 cut-off events. For 3527/3964 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1458 event pairs, 7 based on Foata normal form. 22/251 useless extension candidates. Maximal degree in co-relation 964. Up to 86 conditions per place. [2021-03-26 00:25:20,410 INFO L132 encePairwiseOnDemand]: 195/198 looper letters, 4 selfloop transitions, 3 changer transitions 0/42 dead transitions. [2021-03-26 00:25:20,410 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 42 transitions, 250 flow [2021-03-26 00:25:20,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:25:20,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:25:20,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 525 transitions. [2021-03-26 00:25:20,412 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8838383838383839 [2021-03-26 00:25:20,412 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 525 transitions. [2021-03-26 00:25:20,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 525 transitions. [2021-03-26 00:25:20,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:20,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 525 transitions. [2021-03-26 00:25:20,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,414 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,414 INFO L185 Difference]: Start difference. First operand has 54 places, 42 transitions, 236 flow. Second operand 3 states and 525 transitions. [2021-03-26 00:25:20,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 42 transitions, 250 flow [2021-03-26 00:25:20,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 42 transitions, 239 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-03-26 00:25:20,416 INFO L241 Difference]: Finished difference. Result has 56 places, 42 transitions, 238 flow [2021-03-26 00:25:20,417 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=56, PETRI_TRANSITIONS=42} [2021-03-26 00:25:20,417 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2021-03-26 00:25:20,417 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:20,417 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 42 transitions, 238 flow [2021-03-26 00:25:20,417 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 42 transitions, 238 flow [2021-03-26 00:25:20,417 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 42 transitions, 238 flow [2021-03-26 00:25:20,440 INFO L129 PetriNetUnfolder]: 81/247 cut-off events. [2021-03-26 00:25:20,440 INFO L130 PetriNetUnfolder]: For 2311/2522 co-relation queries the response was YES. [2021-03-26 00:25:20,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 942 conditions, 247 events. 81/247 cut-off events. For 2311/2522 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1372 event pairs, 14 based on Foata normal form. 5/230 useless extension candidates. Maximal degree in co-relation 921. Up to 86 conditions per place. [2021-03-26 00:25:20,443 INFO L142 LiptonReduction]: Number of co-enabled transitions 618 [2021-03-26 00:25:20,447 INFO L154 LiptonReduction]: Checked pairs total: 385 [2021-03-26 00:25:20,447 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:25:20,447 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-03-26 00:25:20,448 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 42 transitions, 238 flow [2021-03-26 00:25:20,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,449 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:20,449 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:20,449 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 00:25:20,449 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:20,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:20,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1222907774, now seen corresponding path program 1 times [2021-03-26 00:25:20,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:20,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293322079] [2021-03-26 00:25:20,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:20,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:20,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 00:25:20,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:20,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 00:25:20,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:20,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 00:25:20,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:20,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-26 00:25:20,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:20,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293322079] [2021-03-26 00:25:20,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:20,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:25:20,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205332541] [2021-03-26 00:25:20,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:25:20,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:20,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:25:20,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:25:20,518 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 198 [2021-03-26 00:25:20,519 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 42 transitions, 238 flow. Second operand has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,519 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:20,519 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 198 [2021-03-26 00:25:20,519 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:20,588 INFO L129 PetriNetUnfolder]: 82/272 cut-off events. [2021-03-26 00:25:20,588 INFO L130 PetriNetUnfolder]: For 1758/1918 co-relation queries the response was YES. [2021-03-26 00:25:20,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1045 conditions, 272 events. 82/272 cut-off events. For 1758/1918 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1603 event pairs, 7 based on Foata normal form. 15/267 useless extension candidates. Maximal degree in co-relation 1022. Up to 127 conditions per place. [2021-03-26 00:25:20,590 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 9 selfloop transitions, 15 changer transitions 0/46 dead transitions. [2021-03-26 00:25:20,590 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 46 transitions, 292 flow [2021-03-26 00:25:20,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:25:20,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:25:20,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 952 transitions. [2021-03-26 00:25:20,592 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8013468013468014 [2021-03-26 00:25:20,592 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 952 transitions. [2021-03-26 00:25:20,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 952 transitions. [2021-03-26 00:25:20,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:20,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 952 transitions. [2021-03-26 00:25:20,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 158.66666666666666) internal successors, (952), 6 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,596 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,596 INFO L185 Difference]: Start difference. First operand has 56 places, 42 transitions, 238 flow. Second operand 6 states and 952 transitions. [2021-03-26 00:25:20,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 46 transitions, 292 flow [2021-03-26 00:25:20,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 46 transitions, 287 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 00:25:20,599 INFO L241 Difference]: Finished difference. Result has 61 places, 45 transitions, 280 flow [2021-03-26 00:25:20,599 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=280, PETRI_PLACES=61, PETRI_TRANSITIONS=45} [2021-03-26 00:25:20,599 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 7 predicate places. [2021-03-26 00:25:20,599 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:20,599 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 45 transitions, 280 flow [2021-03-26 00:25:20,599 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 45 transitions, 280 flow [2021-03-26 00:25:20,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 45 transitions, 280 flow [2021-03-26 00:25:20,622 INFO L129 PetriNetUnfolder]: 76/252 cut-off events. [2021-03-26 00:25:20,623 INFO L130 PetriNetUnfolder]: For 2072/2228 co-relation queries the response was YES. [2021-03-26 00:25:20,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1037 conditions, 252 events. 76/252 cut-off events. For 2072/2228 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1478 event pairs, 4 based on Foata normal form. 8/238 useless extension candidates. Maximal degree in co-relation 1014. Up to 84 conditions per place. [2021-03-26 00:25:20,625 INFO L142 LiptonReduction]: Number of co-enabled transitions 672 [2021-03-26 00:25:20,632 INFO L154 LiptonReduction]: Checked pairs total: 507 [2021-03-26 00:25:20,632 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:25:20,632 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-26 00:25:20,632 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 45 transitions, 280 flow [2021-03-26 00:25:20,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,633 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:20,633 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:20,633 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 00:25:20,633 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:20,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:20,633 INFO L82 PathProgramCache]: Analyzing trace with hash 172744390, now seen corresponding path program 2 times [2021-03-26 00:25:20,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:20,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336574061] [2021-03-26 00:25:20,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:20,699 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.1 percent of original size [2021-03-26 00:25:20,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-26 00:25:20,716 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-26 00:25:20,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-26 00:25:20,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:20,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 00:25:20,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:20,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:25:20,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:20,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336574061] [2021-03-26 00:25:20,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:20,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:25:20,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842875883] [2021-03-26 00:25:20,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:25:20,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:20,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:25:20,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:25:20,753 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 198 [2021-03-26 00:25:20,754 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 45 transitions, 280 flow. Second operand has 6 states, 6 states have (on average 161.83333333333334) internal successors, (971), 6 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,754 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:20,754 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 198 [2021-03-26 00:25:20,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:20,824 INFO L129 PetriNetUnfolder]: 77/261 cut-off events. [2021-03-26 00:25:20,824 INFO L130 PetriNetUnfolder]: For 1980/2117 co-relation queries the response was YES. [2021-03-26 00:25:20,825 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 261 events. 77/261 cut-off events. For 1980/2117 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1540 event pairs, 18 based on Foata normal form. 13/254 useless extension candidates. Maximal degree in co-relation 1109. Up to 123 conditions per place. [2021-03-26 00:25:20,827 INFO L132 encePairwiseOnDemand]: 192/198 looper letters, 11 selfloop transitions, 16 changer transitions 0/49 dead transitions. [2021-03-26 00:25:20,827 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 49 transitions, 358 flow [2021-03-26 00:25:20,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:25:20,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:25:20,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 822 transitions. [2021-03-26 00:25:20,829 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8303030303030303 [2021-03-26 00:25:20,829 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 822 transitions. [2021-03-26 00:25:20,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 822 transitions. [2021-03-26 00:25:20,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:20,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 822 transitions. [2021-03-26 00:25:20,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 164.4) internal successors, (822), 5 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,832 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,832 INFO L185 Difference]: Start difference. First operand has 61 places, 45 transitions, 280 flow. Second operand 5 states and 822 transitions. [2021-03-26 00:25:20,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 49 transitions, 358 flow [2021-03-26 00:25:20,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 49 transitions, 355 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 00:25:20,834 INFO L241 Difference]: Finished difference. Result has 66 places, 49 transitions, 358 flow [2021-03-26 00:25:20,835 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=358, PETRI_PLACES=66, PETRI_TRANSITIONS=49} [2021-03-26 00:25:20,835 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 12 predicate places. [2021-03-26 00:25:20,835 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:20,835 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 49 transitions, 358 flow [2021-03-26 00:25:20,835 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 49 transitions, 358 flow [2021-03-26 00:25:20,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 49 transitions, 358 flow [2021-03-26 00:25:20,858 INFO L129 PetriNetUnfolder]: 71/245 cut-off events. [2021-03-26 00:25:20,859 INFO L130 PetriNetUnfolder]: For 2589/2706 co-relation queries the response was YES. [2021-03-26 00:25:20,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1197 conditions, 245 events. 71/245 cut-off events. For 2589/2706 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1431 event pairs, 7 based on Foata normal form. 5/231 useless extension candidates. Maximal degree in co-relation 1171. Up to 85 conditions per place. [2021-03-26 00:25:20,862 INFO L142 LiptonReduction]: Number of co-enabled transitions 740 [2021-03-26 00:25:20,868 INFO L154 LiptonReduction]: Checked pairs total: 668 [2021-03-26 00:25:20,868 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:25:20,868 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-26 00:25:20,870 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 49 transitions, 358 flow [2021-03-26 00:25:20,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 161.83333333333334) internal successors, (971), 6 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,871 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:20,871 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:20,871 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 00:25:20,871 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:20,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:20,871 INFO L82 PathProgramCache]: Analyzing trace with hash -334538254, now seen corresponding path program 1 times [2021-03-26 00:25:20,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:20,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343410521] [2021-03-26 00:25:20,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:20,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:20,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:25:20,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:20,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:25:20,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:20,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 00:25:20,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:20,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 00:25:20,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:20,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343410521] [2021-03-26 00:25:20,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:20,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:25:20,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767059388] [2021-03-26 00:25:20,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:25:20,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:20,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:25:20,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:25:20,933 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 198 [2021-03-26 00:25:20,933 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 49 transitions, 358 flow. Second operand has 5 states, 5 states have (on average 151.0) internal successors, (755), 5 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:20,933 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:20,933 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 198 [2021-03-26 00:25:20,933 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:21,003 INFO L129 PetriNetUnfolder]: 80/272 cut-off events. [2021-03-26 00:25:21,003 INFO L130 PetriNetUnfolder]: For 2202/2288 co-relation queries the response was YES. [2021-03-26 00:25:21,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1367 conditions, 272 events. 80/272 cut-off events. For 2202/2288 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1596 event pairs, 3 based on Foata normal form. 11/264 useless extension candidates. Maximal degree in co-relation 1339. Up to 123 conditions per place. [2021-03-26 00:25:21,005 INFO L132 encePairwiseOnDemand]: 193/198 looper letters, 16 selfloop transitions, 17 changer transitions 0/55 dead transitions. [2021-03-26 00:25:21,005 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 55 transitions, 472 flow [2021-03-26 00:25:21,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:25:21,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:25:21,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 615 transitions. [2021-03-26 00:25:21,007 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7765151515151515 [2021-03-26 00:25:21,007 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 615 transitions. [2021-03-26 00:25:21,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 615 transitions. [2021-03-26 00:25:21,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:21,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 615 transitions. [2021-03-26 00:25:21,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 153.75) internal successors, (615), 4 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,009 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,009 INFO L185 Difference]: Start difference. First operand has 66 places, 49 transitions, 358 flow. Second operand 4 states and 615 transitions. [2021-03-26 00:25:21,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 55 transitions, 472 flow [2021-03-26 00:25:21,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 55 transitions, 452 flow, removed 7 selfloop flow, removed 2 redundant places. [2021-03-26 00:25:21,014 INFO L241 Difference]: Finished difference. Result has 68 places, 52 transitions, 424 flow [2021-03-26 00:25:21,014 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=424, PETRI_PLACES=68, PETRI_TRANSITIONS=52} [2021-03-26 00:25:21,014 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 14 predicate places. [2021-03-26 00:25:21,014 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:21,015 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 52 transitions, 424 flow [2021-03-26 00:25:21,015 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 52 transitions, 424 flow [2021-03-26 00:25:21,015 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 52 transitions, 424 flow [2021-03-26 00:25:21,039 INFO L129 PetriNetUnfolder]: 70/250 cut-off events. [2021-03-26 00:25:21,039 INFO L130 PetriNetUnfolder]: For 2166/2268 co-relation queries the response was YES. [2021-03-26 00:25:21,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1248 conditions, 250 events. 70/250 cut-off events. For 2166/2268 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1476 event pairs, 3 based on Foata normal form. 23/255 useless extension candidates. Maximal degree in co-relation 1221. Up to 90 conditions per place. [2021-03-26 00:25:21,042 INFO L142 LiptonReduction]: Number of co-enabled transitions 796 [2021-03-26 00:25:21,050 INFO L154 LiptonReduction]: Checked pairs total: 780 [2021-03-26 00:25:21,050 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:25:21,050 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-03-26 00:25:21,051 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 52 transitions, 424 flow [2021-03-26 00:25:21,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 151.0) internal successors, (755), 5 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,051 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:21,051 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:21,051 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 00:25:21,051 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:21,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:21,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1387611839, now seen corresponding path program 1 times [2021-03-26 00:25:21,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:21,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908306637] [2021-03-26 00:25:21,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:21,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:21,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:25:21,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:21,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:25:21,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:21,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:25:21,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:21,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 00:25:21,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:21,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 00:25:21,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:21,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908306637] [2021-03-26 00:25:21,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:21,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:25:21,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364345538] [2021-03-26 00:25:21,125 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:25:21,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:21,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:25:21,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:25:21,126 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 198 [2021-03-26 00:25:21,126 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 52 transitions, 424 flow. Second operand has 6 states, 6 states have (on average 151.0) internal successors, (906), 6 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,126 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:21,126 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 198 [2021-03-26 00:25:21,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:21,196 INFO L129 PetriNetUnfolder]: 83/291 cut-off events. [2021-03-26 00:25:21,196 INFO L130 PetriNetUnfolder]: For 2261/2346 co-relation queries the response was YES. [2021-03-26 00:25:21,197 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1507 conditions, 291 events. 83/291 cut-off events. For 2261/2346 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1795 event pairs, 3 based on Foata normal form. 12/284 useless extension candidates. Maximal degree in co-relation 1478. Up to 153 conditions per place. [2021-03-26 00:25:21,199 INFO L132 encePairwiseOnDemand]: 192/198 looper letters, 22 selfloop transitions, 11 changer transitions 0/55 dead transitions. [2021-03-26 00:25:21,199 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 55 transitions, 510 flow [2021-03-26 00:25:21,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:25:21,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:25:21,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 766 transitions. [2021-03-26 00:25:21,201 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7737373737373737 [2021-03-26 00:25:21,201 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 766 transitions. [2021-03-26 00:25:21,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 766 transitions. [2021-03-26 00:25:21,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:21,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 766 transitions. [2021-03-26 00:25:21,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 153.2) internal successors, (766), 5 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,203 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,204 INFO L185 Difference]: Start difference. First operand has 68 places, 52 transitions, 424 flow. Second operand 5 states and 766 transitions. [2021-03-26 00:25:21,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 55 transitions, 510 flow [2021-03-26 00:25:21,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 55 transitions, 480 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-03-26 00:25:21,207 INFO L241 Difference]: Finished difference. Result has 70 places, 54 transitions, 441 flow [2021-03-26 00:25:21,207 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=441, PETRI_PLACES=70, PETRI_TRANSITIONS=54} [2021-03-26 00:25:21,208 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 16 predicate places. [2021-03-26 00:25:21,208 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:21,208 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 54 transitions, 441 flow [2021-03-26 00:25:21,208 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 54 transitions, 441 flow [2021-03-26 00:25:21,209 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 54 transitions, 441 flow [2021-03-26 00:25:21,234 INFO L129 PetriNetUnfolder]: 73/265 cut-off events. [2021-03-26 00:25:21,234 INFO L130 PetriNetUnfolder]: For 2408/2503 co-relation queries the response was YES. [2021-03-26 00:25:21,235 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1289 conditions, 265 events. 73/265 cut-off events. For 2408/2503 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1607 event pairs, 0 based on Foata normal form. 6/253 useless extension candidates. Maximal degree in co-relation 1262. Up to 96 conditions per place. [2021-03-26 00:25:21,238 INFO L142 LiptonReduction]: Number of co-enabled transitions 834 [2021-03-26 00:25:21,246 INFO L154 LiptonReduction]: Checked pairs total: 870 [2021-03-26 00:25:21,247 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:25:21,247 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-26 00:25:21,247 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 54 transitions, 441 flow [2021-03-26 00:25:21,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 151.0) internal successors, (906), 6 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,248 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:21,248 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:21,248 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-26 00:25:21,248 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:21,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:21,248 INFO L82 PathProgramCache]: Analyzing trace with hash 103774657, now seen corresponding path program 2 times [2021-03-26 00:25:21,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:21,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251552473] [2021-03-26 00:25:21,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:21,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:21,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 00:25:21,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:21,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:25:21,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:21,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 00:25:21,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:21,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 00:25:21,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:21,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:25:21,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:21,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251552473] [2021-03-26 00:25:21,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:21,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:25:21,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451411931] [2021-03-26 00:25:21,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:25:21,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:21,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:25:21,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:25:21,330 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 198 [2021-03-26 00:25:21,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 54 transitions, 441 flow. Second operand has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:21,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 198 [2021-03-26 00:25:21,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:21,415 INFO L129 PetriNetUnfolder]: 83/297 cut-off events. [2021-03-26 00:25:21,415 INFO L130 PetriNetUnfolder]: For 2424/2509 co-relation queries the response was YES. [2021-03-26 00:25:21,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1541 conditions, 297 events. 83/297 cut-off events. For 2424/2509 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1882 event pairs, 14 based on Foata normal form. 7/285 useless extension candidates. Maximal degree in co-relation 1512. Up to 144 conditions per place. [2021-03-26 00:25:21,418 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 19 selfloop transitions, 14 changer transitions 0/55 dead transitions. [2021-03-26 00:25:21,418 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 55 transitions, 517 flow [2021-03-26 00:25:21,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:25:21,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:25:21,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 796 transitions. [2021-03-26 00:25:21,420 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.804040404040404 [2021-03-26 00:25:21,420 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 796 transitions. [2021-03-26 00:25:21,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 796 transitions. [2021-03-26 00:25:21,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:21,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 796 transitions. [2021-03-26 00:25:21,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 159.2) internal successors, (796), 5 states have internal predecessors, (796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,422 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,423 INFO L185 Difference]: Start difference. First operand has 70 places, 54 transitions, 441 flow. Second operand 5 states and 796 transitions. [2021-03-26 00:25:21,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 55 transitions, 517 flow [2021-03-26 00:25:21,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 55 transitions, 494 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-26 00:25:21,426 INFO L241 Difference]: Finished difference. Result has 72 places, 55 transitions, 465 flow [2021-03-26 00:25:21,427 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=465, PETRI_PLACES=72, PETRI_TRANSITIONS=55} [2021-03-26 00:25:21,427 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 18 predicate places. [2021-03-26 00:25:21,427 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:21,427 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 55 transitions, 465 flow [2021-03-26 00:25:21,427 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 55 transitions, 465 flow [2021-03-26 00:25:21,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 55 transitions, 465 flow [2021-03-26 00:25:21,474 INFO L129 PetriNetUnfolder]: 73/271 cut-off events. [2021-03-26 00:25:21,474 INFO L130 PetriNetUnfolder]: For 2766/2861 co-relation queries the response was YES. [2021-03-26 00:25:21,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1387 conditions, 271 events. 73/271 cut-off events. For 2766/2861 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1684 event pairs, 0 based on Foata normal form. 6/259 useless extension candidates. Maximal degree in co-relation 1359. Up to 99 conditions per place. [2021-03-26 00:25:21,478 INFO L142 LiptonReduction]: Number of co-enabled transitions 852 [2021-03-26 00:25:21,487 INFO L154 LiptonReduction]: Checked pairs total: 937 [2021-03-26 00:25:21,487 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:25:21,487 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 60 [2021-03-26 00:25:21,489 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 55 transitions, 465 flow [2021-03-26 00:25:21,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,489 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:21,489 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:21,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-26 00:25:21,490 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:21,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:21,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1060065757, now seen corresponding path program 3 times [2021-03-26 00:25:21,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:21,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094958010] [2021-03-26 00:25:21,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:21,548 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-26 00:25:21,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-26 00:25:21,568 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-03-26 00:25:21,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-26 00:25:21,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:21,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 00:25:21,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:21,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-26 00:25:21,623 INFO L142 QuantifierPusher]: treesize reduction 21, result has 74.1 percent of original size [2021-03-26 00:25:21,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-26 00:25:21,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:21,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094958010] [2021-03-26 00:25:21,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:21,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 00:25:21,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805737489] [2021-03-26 00:25:21,650 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 00:25:21,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:21,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 00:25:21,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 00:25:21,651 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 198 [2021-03-26 00:25:21,652 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 55 transitions, 465 flow. Second operand has 7 states, 7 states have (on average 146.85714285714286) internal successors, (1028), 7 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,652 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:21,652 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 198 [2021-03-26 00:25:21,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:21,741 INFO L129 PetriNetUnfolder]: 83/303 cut-off events. [2021-03-26 00:25:21,741 INFO L130 PetriNetUnfolder]: For 2670/2755 co-relation queries the response was YES. [2021-03-26 00:25:21,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1637 conditions, 303 events. 83/303 cut-off events. For 2670/2755 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1944 event pairs, 3 based on Foata normal form. 12/296 useless extension candidates. Maximal degree in co-relation 1607. Up to 144 conditions per place. [2021-03-26 00:25:21,743 INFO L132 encePairwiseOnDemand]: 193/198 looper letters, 23 selfloop transitions, 12 changer transitions 0/57 dead transitions. [2021-03-26 00:25:21,743 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 57 transitions, 555 flow [2021-03-26 00:25:21,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:25:21,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:25:21,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 746 transitions. [2021-03-26 00:25:21,745 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7535353535353535 [2021-03-26 00:25:21,746 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 746 transitions. [2021-03-26 00:25:21,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 746 transitions. [2021-03-26 00:25:21,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:21,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 746 transitions. [2021-03-26 00:25:21,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 149.2) internal successors, (746), 5 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,748 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,748 INFO L185 Difference]: Start difference. First operand has 72 places, 55 transitions, 465 flow. Second operand 5 states and 746 transitions. [2021-03-26 00:25:21,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 57 transitions, 555 flow [2021-03-26 00:25:21,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 57 transitions, 530 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-26 00:25:21,752 INFO L241 Difference]: Finished difference. Result has 74 places, 56 transitions, 488 flow [2021-03-26 00:25:21,752 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=488, PETRI_PLACES=74, PETRI_TRANSITIONS=56} [2021-03-26 00:25:21,752 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 20 predicate places. [2021-03-26 00:25:21,752 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:21,752 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 56 transitions, 488 flow [2021-03-26 00:25:21,753 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 56 transitions, 488 flow [2021-03-26 00:25:21,753 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 56 transitions, 488 flow [2021-03-26 00:25:21,779 INFO L129 PetriNetUnfolder]: 73/277 cut-off events. [2021-03-26 00:25:21,779 INFO L130 PetriNetUnfolder]: For 2875/2970 co-relation queries the response was YES. [2021-03-26 00:25:21,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1432 conditions, 277 events. 73/277 cut-off events. For 2875/2970 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1733 event pairs, 0 based on Foata normal form. 6/265 useless extension candidates. Maximal degree in co-relation 1403. Up to 102 conditions per place. [2021-03-26 00:25:21,782 INFO L142 LiptonReduction]: Number of co-enabled transitions 870 [2021-03-26 00:25:21,791 INFO L154 LiptonReduction]: Checked pairs total: 1019 [2021-03-26 00:25:21,791 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:25:21,791 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-03-26 00:25:21,792 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 56 transitions, 488 flow [2021-03-26 00:25:21,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 146.85714285714286) internal successors, (1028), 7 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,802 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:21,802 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:21,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-26 00:25:21,802 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:21,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:21,802 INFO L82 PathProgramCache]: Analyzing trace with hash -706592913, now seen corresponding path program 4 times [2021-03-26 00:25:21,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:21,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401921352] [2021-03-26 00:25:21,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:21,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:21,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:21,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:25:21,844 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:21,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 00:25:21,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:21,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:25:21,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:21,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 00:25:21,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:21,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 00:25:21,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:21,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401921352] [2021-03-26 00:25:21,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:21,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:25:21,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267948699] [2021-03-26 00:25:21,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:25:21,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:21,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:25:21,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:25:21,872 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 198 [2021-03-26 00:25:21,873 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 56 transitions, 488 flow. Second operand has 6 states, 6 states have (on average 150.0) internal successors, (900), 6 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,873 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:21,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 198 [2021-03-26 00:25:21,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:21,984 INFO L129 PetriNetUnfolder]: 72/300 cut-off events. [2021-03-26 00:25:21,984 INFO L130 PetriNetUnfolder]: For 2877/2962 co-relation queries the response was YES. [2021-03-26 00:25:21,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1574 conditions, 300 events. 72/300 cut-off events. For 2877/2962 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2001 event pairs, 3 based on Foata normal form. 15/297 useless extension candidates. Maximal degree in co-relation 1543. Up to 94 conditions per place. [2021-03-26 00:25:21,986 INFO L132 encePairwiseOnDemand]: 192/198 looper letters, 10 selfloop transitions, 25 changer transitions 1/58 dead transitions. [2021-03-26 00:25:21,986 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 58 transitions, 576 flow [2021-03-26 00:25:21,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:25:21,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:25:21,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1061 transitions. [2021-03-26 00:25:21,988 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7655122655122655 [2021-03-26 00:25:21,988 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1061 transitions. [2021-03-26 00:25:21,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1061 transitions. [2021-03-26 00:25:21,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:21,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1061 transitions. [2021-03-26 00:25:21,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 151.57142857142858) internal successors, (1061), 7 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,992 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:21,992 INFO L185 Difference]: Start difference. First operand has 74 places, 56 transitions, 488 flow. Second operand 7 states and 1061 transitions. [2021-03-26 00:25:21,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 58 transitions, 576 flow [2021-03-26 00:25:21,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 58 transitions, 554 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-26 00:25:21,996 INFO L241 Difference]: Finished difference. Result has 78 places, 55 transitions, 522 flow [2021-03-26 00:25:21,996 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=522, PETRI_PLACES=78, PETRI_TRANSITIONS=55} [2021-03-26 00:25:21,996 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 24 predicate places. [2021-03-26 00:25:21,996 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:21,996 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 55 transitions, 522 flow [2021-03-26 00:25:21,997 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 55 transitions, 522 flow [2021-03-26 00:25:21,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 55 transitions, 522 flow [2021-03-26 00:25:22,022 INFO L129 PetriNetUnfolder]: 59/268 cut-off events. [2021-03-26 00:25:22,022 INFO L130 PetriNetUnfolder]: For 2614/2691 co-relation queries the response was YES. [2021-03-26 00:25:22,023 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1424 conditions, 268 events. 59/268 cut-off events. For 2614/2691 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1765 event pairs, 3 based on Foata normal form. 4/255 useless extension candidates. Maximal degree in co-relation 1394. Up to 91 conditions per place. [2021-03-26 00:25:22,025 INFO L142 LiptonReduction]: Number of co-enabled transitions 850 [2021-03-26 00:25:22,034 INFO L154 LiptonReduction]: Checked pairs total: 960 [2021-03-26 00:25:22,034 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:25:22,034 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-03-26 00:25:22,035 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 55 transitions, 522 flow [2021-03-26 00:25:22,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 150.0) internal successors, (900), 6 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:22,035 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:22,035 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:22,036 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-26 00:25:22,036 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:22,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:22,036 INFO L82 PathProgramCache]: Analyzing trace with hash -751534667, now seen corresponding path program 1 times [2021-03-26 00:25:22,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:22,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615967620] [2021-03-26 00:25:22,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:22,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:22,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:22,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:22,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 00:25:22,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:22,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:25:22,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:22,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615967620] [2021-03-26 00:25:22,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:22,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:25:22,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967249284] [2021-03-26 00:25:22,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:25:22,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:22,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:25:22,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:25:22,082 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 198 [2021-03-26 00:25:22,083 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 55 transitions, 522 flow. Second operand has 4 states, 4 states have (on average 163.75) internal successors, (655), 4 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:22,083 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:22,083 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 198 [2021-03-26 00:25:22,083 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:22,370 INFO L129 PetriNetUnfolder]: 1362/2470 cut-off events. [2021-03-26 00:25:22,370 INFO L130 PetriNetUnfolder]: For 12162/13777 co-relation queries the response was YES. [2021-03-26 00:25:22,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8850 conditions, 2470 events. 1362/2470 cut-off events. For 12162/13777 co-relation queries the response was YES. Maximal size of possible extension queue 475. Compared 19317 event pairs, 604 based on Foata normal form. 285/2316 useless extension candidates. Maximal degree in co-relation 8818. Up to 1611 conditions per place. [2021-03-26 00:25:22,387 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 14 selfloop transitions, 10 changer transitions 0/68 dead transitions. [2021-03-26 00:25:22,387 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 68 transitions, 596 flow [2021-03-26 00:25:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:25:22,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:25:22,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 837 transitions. [2021-03-26 00:25:22,390 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8454545454545455 [2021-03-26 00:25:22,390 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 837 transitions. [2021-03-26 00:25:22,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 837 transitions. [2021-03-26 00:25:22,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:22,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 837 transitions. [2021-03-26 00:25:22,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 167.4) internal successors, (837), 5 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:22,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:22,393 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:22,393 INFO L185 Difference]: Start difference. First operand has 78 places, 55 transitions, 522 flow. Second operand 5 states and 837 transitions. [2021-03-26 00:25:22,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 68 transitions, 596 flow [2021-03-26 00:25:22,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 68 transitions, 566 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-26 00:25:22,405 INFO L241 Difference]: Finished difference. Result has 81 places, 64 transitions, 583 flow [2021-03-26 00:25:22,405 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=583, PETRI_PLACES=81, PETRI_TRANSITIONS=64} [2021-03-26 00:25:22,405 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 27 predicate places. [2021-03-26 00:25:22,405 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:22,405 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 64 transitions, 583 flow [2021-03-26 00:25:22,406 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 64 transitions, 583 flow [2021-03-26 00:25:22,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 64 transitions, 583 flow [2021-03-26 00:25:22,626 INFO L129 PetriNetUnfolder]: 1350/2459 cut-off events. [2021-03-26 00:25:22,627 INFO L130 PetriNetUnfolder]: For 12609/14511 co-relation queries the response was YES. [2021-03-26 00:25:22,639 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10336 conditions, 2459 events. 1350/2459 cut-off events. For 12609/14511 co-relation queries the response was YES. Maximal size of possible extension queue 473. Compared 19490 event pairs, 602 based on Foata normal form. 31/2045 useless extension candidates. Maximal degree in co-relation 10303. Up to 1752 conditions per place. [2021-03-26 00:25:22,660 INFO L142 LiptonReduction]: Number of co-enabled transitions 1104 [2021-03-26 00:25:23,008 INFO L154 LiptonReduction]: Checked pairs total: 410 [2021-03-26 00:25:23,008 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:25:23,008 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 603 [2021-03-26 00:25:23,010 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 64 transitions, 583 flow [2021-03-26 00:25:23,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 163.75) internal successors, (655), 4 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:23,010 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:23,010 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:23,010 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-26 00:25:23,010 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:23,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:23,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1066420252, now seen corresponding path program 1 times [2021-03-26 00:25:23,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:23,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740320963] [2021-03-26 00:25:23,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:23,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:23,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:23,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:23,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:23,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:23,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 00:25:23,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:23,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:25:23,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:23,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740320963] [2021-03-26 00:25:23,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:23,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:25:23,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688710427] [2021-03-26 00:25:23,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:25:23,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:23,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:25:23,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:25:23,058 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 198 [2021-03-26 00:25:23,059 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 64 transitions, 583 flow. Second operand has 5 states, 5 states have (on average 163.8) internal successors, (819), 5 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:23,059 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:23,059 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 198 [2021-03-26 00:25:23,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:23,287 INFO L129 PetriNetUnfolder]: 1003/1929 cut-off events. [2021-03-26 00:25:23,287 INFO L130 PetriNetUnfolder]: For 11049/18600 co-relation queries the response was YES. [2021-03-26 00:25:23,295 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8994 conditions, 1929 events. 1003/1929 cut-off events. For 11049/18600 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 14899 event pairs, 182 based on Foata normal form. 509/2100 useless extension candidates. Maximal degree in co-relation 8959. Up to 1481 conditions per place. [2021-03-26 00:25:23,301 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 14 selfloop transitions, 19 changer transitions 0/77 dead transitions. [2021-03-26 00:25:23,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 77 transitions, 725 flow [2021-03-26 00:25:23,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:25:23,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:25:23,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1172 transitions. [2021-03-26 00:25:23,303 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8455988455988456 [2021-03-26 00:25:23,303 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1172 transitions. [2021-03-26 00:25:23,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1172 transitions. [2021-03-26 00:25:23,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:23,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1172 transitions. [2021-03-26 00:25:23,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 167.42857142857142) internal successors, (1172), 7 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:23,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:23,307 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:23,307 INFO L185 Difference]: Start difference. First operand has 81 places, 64 transitions, 583 flow. Second operand 7 states and 1172 transitions. [2021-03-26 00:25:23,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 77 transitions, 725 flow [2021-03-26 00:25:23,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 77 transitions, 720 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:25:23,325 INFO L241 Difference]: Finished difference. Result has 89 places, 73 transitions, 728 flow [2021-03-26 00:25:23,325 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=728, PETRI_PLACES=89, PETRI_TRANSITIONS=73} [2021-03-26 00:25:23,325 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 35 predicate places. [2021-03-26 00:25:23,325 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:23,326 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 73 transitions, 728 flow [2021-03-26 00:25:23,328 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 73 transitions, 728 flow [2021-03-26 00:25:23,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 73 transitions, 728 flow [2021-03-26 00:25:23,516 INFO L129 PetriNetUnfolder]: 994/1916 cut-off events. [2021-03-26 00:25:23,516 INFO L130 PetriNetUnfolder]: For 12943/19651 co-relation queries the response was YES. [2021-03-26 00:25:23,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10360 conditions, 1916 events. 994/1916 cut-off events. For 12943/19651 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 14856 event pairs, 162 based on Foata normal form. 37/1609 useless extension candidates. Maximal degree in co-relation 10323. Up to 1477 conditions per place. [2021-03-26 00:25:23,541 INFO L142 LiptonReduction]: Number of co-enabled transitions 1258 [2021-03-26 00:25:23,596 INFO L154 LiptonReduction]: Checked pairs total: 437 [2021-03-26 00:25:23,596 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:25:23,596 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 271 [2021-03-26 00:25:23,597 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 73 transitions, 728 flow [2021-03-26 00:25:23,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 163.8) internal successors, (819), 5 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:23,598 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:23,598 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:23,598 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-26 00:25:23,598 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:23,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:23,598 INFO L82 PathProgramCache]: Analyzing trace with hash 2063755336, now seen corresponding path program 1 times [2021-03-26 00:25:23,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:23,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694540747] [2021-03-26 00:25:23,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:23,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:23,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:23,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:23,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:23,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:23,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:23,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:23,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 00:25:23,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:23,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:25:23,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:23,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694540747] [2021-03-26 00:25:23,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:23,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 00:25:23,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338853000] [2021-03-26 00:25:23,646 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:25:23,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:23,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:25:23,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:25:23,647 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 198 [2021-03-26 00:25:23,647 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 73 transitions, 728 flow. Second operand has 6 states, 6 states have (on average 163.83333333333334) internal successors, (983), 6 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:23,647 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:23,647 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 198 [2021-03-26 00:25:23,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:23,828 INFO L129 PetriNetUnfolder]: 730/1468 cut-off events. [2021-03-26 00:25:23,828 INFO L130 PetriNetUnfolder]: For 11884/29308 co-relation queries the response was YES. [2021-03-26 00:25:23,835 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8712 conditions, 1468 events. 730/1468 cut-off events. For 11884/29308 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 11141 event pairs, 20 based on Foata normal form. 667/1838 useless extension candidates. Maximal degree in co-relation 8673. Up to 1279 conditions per place. [2021-03-26 00:25:23,839 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 7 selfloop transitions, 28 changer transitions 5/76 dead transitions. [2021-03-26 00:25:23,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 76 transitions, 801 flow [2021-03-26 00:25:23,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 00:25:23,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 00:25:23,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1507 transitions. [2021-03-26 00:25:23,842 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.845679012345679 [2021-03-26 00:25:23,842 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1507 transitions. [2021-03-26 00:25:23,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1507 transitions. [2021-03-26 00:25:23,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:23,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1507 transitions. [2021-03-26 00:25:23,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 167.44444444444446) internal successors, (1507), 9 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:23,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 198.0) internal successors, (1980), 10 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:23,847 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 198.0) internal successors, (1980), 10 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:23,847 INFO L185 Difference]: Start difference. First operand has 89 places, 73 transitions, 728 flow. Second operand 9 states and 1507 transitions. [2021-03-26 00:25:23,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 76 transitions, 801 flow [2021-03-26 00:25:23,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 76 transitions, 709 flow, removed 17 selfloop flow, removed 11 redundant places. [2021-03-26 00:25:23,862 INFO L241 Difference]: Finished difference. Result has 89 places, 71 transitions, 671 flow [2021-03-26 00:25:23,862 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=671, PETRI_PLACES=89, PETRI_TRANSITIONS=71} [2021-03-26 00:25:23,862 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 35 predicate places. [2021-03-26 00:25:23,862 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:23,862 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 71 transitions, 671 flow [2021-03-26 00:25:23,862 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 71 transitions, 671 flow [2021-03-26 00:25:23,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 71 transitions, 671 flow [2021-03-26 00:25:23,951 INFO L129 PetriNetUnfolder]: 658/1368 cut-off events. [2021-03-26 00:25:23,951 INFO L130 PetriNetUnfolder]: For 10646/12430 co-relation queries the response was YES. [2021-03-26 00:25:23,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7757 conditions, 1368 events. 658/1368 cut-off events. For 10646/12430 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 10851 event pairs, 20 based on Foata normal form. 17/1097 useless extension candidates. Maximal degree in co-relation 7720. Up to 944 conditions per place. [2021-03-26 00:25:23,968 INFO L142 LiptonReduction]: Number of co-enabled transitions 1306 [2021-03-26 00:25:23,977 INFO L154 LiptonReduction]: Checked pairs total: 358 [2021-03-26 00:25:23,977 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:25:23,977 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 115 [2021-03-26 00:25:23,978 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 71 transitions, 671 flow [2021-03-26 00:25:23,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 163.83333333333334) internal successors, (983), 6 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:23,978 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:23,978 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:23,978 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-26 00:25:23,978 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:23,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:23,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1525483821, now seen corresponding path program 1 times [2021-03-26 00:25:23,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:23,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865276629] [2021-03-26 00:25:23,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:24,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:24,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:24,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:24,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:24,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:24,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:24,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:24,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:24,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:24,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 00:25:24,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:24,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:25:24,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:24,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865276629] [2021-03-26 00:25:24,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:24,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 00:25:24,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309125590] [2021-03-26 00:25:24,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 00:25:24,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:24,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 00:25:24,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-26 00:25:24,039 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 198 [2021-03-26 00:25:24,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 71 transitions, 671 flow. Second operand has 7 states, 7 states have (on average 163.85714285714286) internal successors, (1147), 7 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:24,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:24,040 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 198 [2021-03-26 00:25:24,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:24,244 INFO L129 PetriNetUnfolder]: 604/1251 cut-off events. [2021-03-26 00:25:24,244 INFO L130 PetriNetUnfolder]: For 11890/20463 co-relation queries the response was YES. [2021-03-26 00:25:24,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7969 conditions, 1251 events. 604/1251 cut-off events. For 11890/20463 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 9381 event pairs, 0 based on Foata normal form. 577/1535 useless extension candidates. Maximal degree in co-relation 7930. Up to 862 conditions per place. [2021-03-26 00:25:24,255 INFO L132 encePairwiseOnDemand]: 191/198 looper letters, 2 selfloop transitions, 33 changer transitions 8/74 dead transitions. [2021-03-26 00:25:24,255 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 74 transitions, 776 flow [2021-03-26 00:25:24,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 00:25:24,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 00:25:24,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1834 transitions. [2021-03-26 00:25:24,258 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8420569329660239 [2021-03-26 00:25:24,258 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1834 transitions. [2021-03-26 00:25:24,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1834 transitions. [2021-03-26 00:25:24,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:24,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1834 transitions. [2021-03-26 00:25:24,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 166.72727272727272) internal successors, (1834), 11 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:24,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 198.0) internal successors, (2376), 12 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:24,264 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 198.0) internal successors, (2376), 12 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:24,264 INFO L185 Difference]: Start difference. First operand has 89 places, 71 transitions, 671 flow. Second operand 11 states and 1834 transitions. [2021-03-26 00:25:24,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 74 transitions, 776 flow [2021-03-26 00:25:24,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 74 transitions, 638 flow, removed 46 selfloop flow, removed 8 redundant places. [2021-03-26 00:25:24,302 INFO L241 Difference]: Finished difference. Result has 94 places, 66 transitions, 578 flow [2021-03-26 00:25:24,302 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=578, PETRI_PLACES=94, PETRI_TRANSITIONS=66} [2021-03-26 00:25:24,302 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 40 predicate places. [2021-03-26 00:25:24,302 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:24,303 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 66 transitions, 578 flow [2021-03-26 00:25:24,303 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 66 transitions, 578 flow [2021-03-26 00:25:24,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 66 transitions, 578 flow [2021-03-26 00:25:24,322 INFO L129 PetriNetUnfolder]: 149/336 cut-off events. [2021-03-26 00:25:24,322 INFO L130 PetriNetUnfolder]: For 1727/2122 co-relation queries the response was YES. [2021-03-26 00:25:24,323 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1510 conditions, 336 events. 149/336 cut-off events. For 1727/2122 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 2017 event pairs, 0 based on Foata normal form. 4/290 useless extension candidates. Maximal degree in co-relation 1472. Up to 110 conditions per place. [2021-03-26 00:25:24,325 INFO L142 LiptonReduction]: Number of co-enabled transitions 820 [2021-03-26 00:25:24,626 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-26 00:25:24,737 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-26 00:25:25,301 WARN L205 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 184 [2021-03-26 00:25:25,488 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-03-26 00:25:26,671 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 339 DAG size of output: 260 [2021-03-26 00:25:27,129 WARN L205 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 242 [2021-03-26 00:25:27,400 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-03-26 00:25:27,606 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2021-03-26 00:25:28,075 WARN L205 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-03-26 00:25:28,546 WARN L205 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-03-26 00:25:28,553 INFO L154 LiptonReduction]: Checked pairs total: 738 [2021-03-26 00:25:28,553 INFO L156 LiptonReduction]: Total number of compositions: 12 [2021-03-26 00:25:28,553 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4251 [2021-03-26 00:25:28,553 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 57 transitions, 538 flow [2021-03-26 00:25:28,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 163.85714285714286) internal successors, (1147), 7 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:28,554 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:28,554 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:28,554 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-26 00:25:28,554 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:28,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:28,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1834350620, now seen corresponding path program 1 times [2021-03-26 00:25:28,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:28,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535733444] [2021-03-26 00:25:28,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:25:28,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:28,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:25:28,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:28,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:28,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:25:28,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:25:28,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:25:28,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535733444] [2021-03-26 00:25:28,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:25:28,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:25:28,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121440172] [2021-03-26 00:25:28,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:25:28,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:25:28,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:25:28,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:25:28,589 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 206 [2021-03-26 00:25:28,589 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 57 transitions, 538 flow. Second operand has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:28,589 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:25:28,589 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 206 [2021-03-26 00:25:28,589 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:25:28,616 INFO L129 PetriNetUnfolder]: 87/194 cut-off events. [2021-03-26 00:25:28,616 INFO L130 PetriNetUnfolder]: For 2126/2240 co-relation queries the response was YES. [2021-03-26 00:25:28,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 194 events. 87/194 cut-off events. For 2126/2240 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 853 event pairs, 0 based on Foata normal form. 8/181 useless extension candidates. Maximal degree in co-relation 861. Up to 78 conditions per place. [2021-03-26 00:25:28,617 INFO L132 encePairwiseOnDemand]: 203/206 looper letters, 3 selfloop transitions, 1 changer transitions 9/46 dead transitions. [2021-03-26 00:25:28,617 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 46 transitions, 434 flow [2021-03-26 00:25:28,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:25:28,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:25:28,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 718 transitions. [2021-03-26 00:25:28,618 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8713592233009708 [2021-03-26 00:25:28,618 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 718 transitions. [2021-03-26 00:25:28,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 718 transitions. [2021-03-26 00:25:28,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:25:28,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 718 transitions. [2021-03-26 00:25:28,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 179.5) internal successors, (718), 4 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:28,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:28,620 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 206.0) internal successors, (1030), 5 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:28,620 INFO L185 Difference]: Start difference. First operand has 88 places, 57 transitions, 538 flow. Second operand 4 states and 718 transitions. [2021-03-26 00:25:28,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 46 transitions, 434 flow [2021-03-26 00:25:28,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 46 transitions, 331 flow, removed 31 selfloop flow, removed 18 redundant places. [2021-03-26 00:25:28,624 INFO L241 Difference]: Finished difference. Result has 65 places, 37 transitions, 249 flow [2021-03-26 00:25:28,624 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=206, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=249, PETRI_PLACES=65, PETRI_TRANSITIONS=37} [2021-03-26 00:25:28,624 INFO L343 CegarLoopForPetriNet]: 54 programPoint places, 11 predicate places. [2021-03-26 00:25:28,624 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:25:28,624 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 37 transitions, 249 flow [2021-03-26 00:25:28,624 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 37 transitions, 249 flow [2021-03-26 00:25:28,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 37 transitions, 249 flow [2021-03-26 00:25:28,630 INFO L129 PetriNetUnfolder]: 43/105 cut-off events. [2021-03-26 00:25:28,630 INFO L130 PetriNetUnfolder]: For 335/346 co-relation queries the response was YES. [2021-03-26 00:25:28,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 105 events. 43/105 cut-off events. For 335/346 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 359 event pairs, 0 based on Foata normal form. 2/97 useless extension candidates. Maximal degree in co-relation 328. Up to 34 conditions per place. [2021-03-26 00:25:28,631 INFO L142 LiptonReduction]: Number of co-enabled transitions 186 [2021-03-26 00:25:28,789 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-26 00:25:29,156 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2021-03-26 00:25:29,291 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-26 00:25:29,733 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 89 [2021-03-26 00:25:29,796 INFO L154 LiptonReduction]: Checked pairs total: 18 [2021-03-26 00:25:29,796 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 00:25:29,796 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1172 [2021-03-26 00:25:29,797 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 36 transitions, 252 flow [2021-03-26 00:25:29,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:25:29,797 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:25:29,797 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:25:29,797 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-26 00:25:29,797 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:25:29,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:25:29,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1667169062, now seen corresponding path program 1 times [2021-03-26 00:25:29,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:25:29,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210247601] [2021-03-26 00:25:29,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:25:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 00:25:29,814 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 00:25:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 00:25:29,830 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 00:25:29,848 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 00:25:29,848 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 00:25:29,848 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-26 00:25:29,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:25:29 BasicIcfg [2021-03-26 00:25:29,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:25:29,896 INFO L168 Benchmark]: Toolchain (without parser) took 25375.38 ms. Allocated memory was 255.9 MB in the beginning and 734.0 MB in the end (delta: 478.2 MB). Free memory was 234.3 MB in the beginning and 359.3 MB in the end (delta: -125.0 MB). Peak memory consumption was 353.3 MB. Max. memory is 16.0 GB. [2021-03-26 00:25:29,896 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:25:29,896 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.68 ms. Allocated memory was 255.9 MB in the beginning and 350.2 MB in the end (delta: 94.4 MB). Free memory was 234.3 MB in the beginning and 310.9 MB in the end (delta: -76.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-26 00:25:29,896 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.29 ms. Allocated memory is still 350.2 MB. Free memory was 310.9 MB in the beginning and 308.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:25:29,897 INFO L168 Benchmark]: Boogie Preprocessor took 20.26 ms. Allocated memory is still 350.2 MB. Free memory was 308.1 MB in the beginning and 306.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:25:29,897 INFO L168 Benchmark]: RCFGBuilder took 1209.33 ms. Allocated memory is still 350.2 MB. Free memory was 306.0 MB in the beginning and 227.1 MB in the end (delta: 78.9 MB). Peak memory consumption was 84.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:25:29,897 INFO L168 Benchmark]: TraceAbstraction took 23767.18 ms. Allocated memory was 350.2 MB in the beginning and 734.0 MB in the end (delta: 383.8 MB). Free memory was 226.1 MB in the beginning and 359.3 MB in the end (delta: -133.2 MB). Peak memory consumption was 251.6 MB. Max. memory is 16.0 GB. [2021-03-26 00:25:29,897 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 340.68 ms. Allocated memory was 255.9 MB in the beginning and 350.2 MB in the end (delta: 94.4 MB). Free memory was 234.3 MB in the beginning and 310.9 MB in the end (delta: -76.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 34.29 ms. Allocated memory is still 350.2 MB. Free memory was 310.9 MB in the beginning and 308.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.26 ms. Allocated memory is still 350.2 MB. Free memory was 308.1 MB in the beginning and 306.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1209.33 ms. Allocated memory is still 350.2 MB. Free memory was 306.0 MB in the beginning and 227.1 MB in the end (delta: 78.9 MB). Peak memory consumption was 84.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 23767.18 ms. Allocated memory was 350.2 MB in the beginning and 734.0 MB in the end (delta: 383.8 MB). Free memory was 226.1 MB in the beginning and 359.3 MB in the end (delta: -133.2 MB). Peak memory consumption was 251.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7434.6ms, 119 PlacesBefore, 54 PlacesAfterwards, 108 TransitionsBefore, 42 TransitionsAfterwards, 2406 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 75 TotalNumberOfCompositions, 4010 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2326, positive: 2230, positive conditional: 2230, positive unconditional: 0, negative: 96, negative conditional: 96, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1680, positive: 1646, positive conditional: 0, positive unconditional: 1646, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1680, positive: 1646, positive conditional: 0, positive unconditional: 1646, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1680, positive: 1626, positive conditional: 0, positive unconditional: 1626, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 54, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 469, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 419, negative conditional: 0, negative unconditional: 419, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2326, positive: 584, positive conditional: 584, positive unconditional: 0, negative: 62, negative conditional: 62, negative unconditional: 0, unknown: 1680, unknown conditional: 1680, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 125, Positive conditional cache size: 125, Positive unconditional cache size: 0, Negative cache size: 14, Negative conditional cache size: 14, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3057.1ms, 50 PlacesBefore, 38 PlacesAfterwards, 35 TransitionsBefore, 27 TransitionsAfterwards, 362 CoEnabledTransitionPairs, 3 FixpointIterations, 6 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 1154 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 467, positive: 398, positive conditional: 398, positive unconditional: 0, negative: 69, negative conditional: 69, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 116, positive: 95, positive conditional: 11, positive unconditional: 84, negative: 21, negative conditional: 2, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 116, positive: 95, positive conditional: 11, positive unconditional: 84, negative: 21, negative conditional: 2, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 116, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 32, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 21, negative conditional: 2, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 323, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 271, negative conditional: 34, negative unconditional: 237, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 467, positive: 303, positive conditional: 303, positive unconditional: 0, negative: 48, negative conditional: 48, negative unconditional: 0, unknown: 116, unknown conditional: 116, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 194, Positive cache size: 165, Positive conditional cache size: 165, Positive unconditional cache size: 0, Negative cache size: 29, Negative conditional cache size: 29, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 984.2ms, 39 PlacesBefore, 37 PlacesAfterwards, 29 TransitionsBefore, 27 TransitionsAfterwards, 356 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 996 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 356, positive: 296, positive conditional: 296, positive unconditional: 0, negative: 60, negative conditional: 60, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25, positive: 21, positive conditional: 15, positive unconditional: 6, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 25, positive: 21, positive conditional: 15, positive unconditional: 6, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 25, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 356, positive: 275, positive conditional: 275, positive unconditional: 0, negative: 56, negative conditional: 56, negative unconditional: 0, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 219, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 33, Negative conditional cache size: 33, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 71.1ms, 39 PlacesBefore, 39 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 394 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 280 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 66, positive: 50, positive conditional: 50, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 8, positive conditional: 3, positive unconditional: 5, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 8, positive conditional: 3, positive unconditional: 5, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 63, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 66, positive: 42, positive conditional: 42, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 229, Positive cache size: 194, Positive conditional cache size: 194, Positive unconditional cache size: 0, Negative cache size: 35, Negative conditional cache size: 35, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.3ms, 41 PlacesBefore, 41 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 394 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 316 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 87, positive: 69, positive conditional: 69, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 1, positive unconditional: 3, 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: 4, positive: 4, positive conditional: 1, positive unconditional: 3, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 87, positive: 65, positive conditional: 65, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 233, Positive cache size: 198, Positive conditional cache size: 198, Positive unconditional cache size: 0, Negative cache size: 35, Negative conditional cache size: 35, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 77.9ms, 43 PlacesBefore, 43 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 428 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 240 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 67, positive: 54, positive conditional: 54, 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: 17, positive: 15, positive conditional: 3, positive unconditional: 12, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, positive: 15, positive conditional: 3, positive unconditional: 12, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 64, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 67, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 250, Positive cache size: 213, Positive conditional cache size: 213, Positive unconditional cache size: 0, Negative cache size: 37, Negative conditional cache size: 37, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 694.2ms, 46 PlacesBefore, 46 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 464 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 465 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 162, positive: 138, positive conditional: 138, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 51, positive: 47, positive conditional: 28, positive unconditional: 19, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 51, positive: 47, positive conditional: 28, positive unconditional: 19, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 51, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 72, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 162, positive: 91, positive conditional: 91, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 51, unknown conditional: 51, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 266, Positive cache size: 237, Positive conditional cache size: 237, Positive unconditional cache size: 0, Negative cache size: 29, Negative conditional cache size: 29, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 106.5ms, 49 PlacesBefore, 49 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 229 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 61, positive: 50, positive conditional: 50, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 14, positive conditional: 8, positive unconditional: 6, 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: 17, positive: 14, positive conditional: 8, positive unconditional: 6, 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: 17, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 46, negative conditional: 17, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 61, positive: 36, positive conditional: 36, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 283, Positive cache size: 251, Positive conditional cache size: 251, Positive unconditional cache size: 0, Negative cache size: 32, Negative conditional cache size: 32, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.6ms, 50 PlacesBefore, 50 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 239 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 65, positive: 53, positive conditional: 53, 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: 11, positive: 10, positive conditional: 9, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 9, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 0, positive unconditional: 10, 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: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 15, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 65, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 294, Positive cache size: 261, Positive conditional cache size: 261, Positive unconditional cache size: 0, Negative cache size: 33, Negative conditional cache size: 33, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.9ms, 54 PlacesBefore, 54 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 618 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 300 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 82, positive: 69, positive conditional: 69, 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: 18, positive: 18, positive conditional: 12, positive unconditional: 6, 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: 18, positive: 18, positive conditional: 12, positive unconditional: 6, 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: 18, positive: 18, positive conditional: 0, positive unconditional: 18, 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: 82, positive: 51, positive conditional: 51, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 312, Positive cache size: 279, Positive conditional cache size: 279, Positive unconditional cache size: 0, Negative cache size: 33, Negative conditional cache size: 33, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.1ms, 56 PlacesBefore, 56 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 618 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 385 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 101, positive: 86, positive conditional: 86, 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: 7, positive: 7, positive conditional: 4, positive unconditional: 3, 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: 7, positive: 7, positive conditional: 4, positive unconditional: 3, 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: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 101, positive: 79, positive conditional: 79, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 319, Positive cache size: 286, Positive conditional cache size: 286, Positive unconditional cache size: 0, Negative cache size: 33, Negative conditional cache size: 33, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.7ms, 61 PlacesBefore, 61 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 507 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 109, positive: 90, positive conditional: 90, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 12, positive unconditional: 1, 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: 13, positive: 13, positive conditional: 12, positive unconditional: 1, 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: 13, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 109, positive: 77, positive conditional: 77, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 332, Positive cache size: 299, Positive conditional cache size: 299, Positive unconditional cache size: 0, Negative cache size: 33, Negative conditional cache size: 33, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.4ms, 66 PlacesBefore, 66 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 740 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 668 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 182, positive: 156, positive conditional: 156, positive unconditional: 0, negative: 26, negative conditional: 26, 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: 21, positive unconditional: 1, 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: 21, positive unconditional: 1, 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: 182, positive: 134, positive conditional: 134, positive unconditional: 0, negative: 26, negative conditional: 26, negative unconditional: 0, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 354, Positive cache size: 321, Positive conditional cache size: 321, Positive unconditional cache size: 0, Negative cache size: 33, Negative conditional cache size: 33, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.3ms, 68 PlacesBefore, 68 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 796 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 780 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 195, positive: 165, positive conditional: 165, positive unconditional: 0, negative: 30, negative conditional: 30, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 13, positive unconditional: 1, 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: 14, positive: 14, positive conditional: 13, positive unconditional: 1, 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: 14, positive: 14, positive conditional: 0, positive unconditional: 14, 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: 195, positive: 151, positive conditional: 151, positive unconditional: 0, negative: 30, negative conditional: 30, negative unconditional: 0, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 335, Positive conditional cache size: 335, Positive unconditional cache size: 0, Negative cache size: 33, Negative conditional cache size: 33, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.7ms, 70 PlacesBefore, 70 PlacesAfterwards, 54 TransitionsBefore, 54 TransitionsAfterwards, 834 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 870 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 225, positive: 193, positive conditional: 193, 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: 23, positive: 23, positive conditional: 18, positive unconditional: 5, 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: 23, positive: 23, positive conditional: 18, positive unconditional: 5, 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: 23, positive: 23, positive conditional: 0, positive unconditional: 23, 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: 225, positive: 170, positive conditional: 170, positive unconditional: 0, negative: 32, negative conditional: 32, negative unconditional: 0, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 391, Positive cache size: 358, Positive conditional cache size: 358, Positive unconditional cache size: 0, Negative cache size: 33, Negative conditional cache size: 33, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 59.9ms, 72 PlacesBefore, 72 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 852 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 937 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 245, positive: 211, positive conditional: 211, positive unconditional: 0, negative: 34, negative conditional: 34, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 17, positive conditional: 17, 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: 17, positive: 17, positive conditional: 17, 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: 17, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 245, positive: 194, positive conditional: 194, positive unconditional: 0, negative: 34, negative conditional: 34, negative unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 408, Positive cache size: 375, Positive conditional cache size: 375, Positive unconditional cache size: 0, Negative cache size: 33, Negative conditional cache size: 33, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.8ms, 74 PlacesBefore, 74 PlacesAfterwards, 56 TransitionsBefore, 56 TransitionsAfterwards, 870 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1019 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 266, positive: 229, positive conditional: 229, positive unconditional: 0, negative: 37, negative conditional: 37, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30, positive: 30, positive conditional: 24, positive unconditional: 6, 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: 30, positive: 30, positive conditional: 24, positive unconditional: 6, 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: 30, positive: 30, positive conditional: 0, positive unconditional: 30, 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: 266, positive: 199, positive conditional: 199, positive unconditional: 0, negative: 37, negative conditional: 37, negative unconditional: 0, unknown: 30, unknown conditional: 30, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 438, Positive cache size: 405, Positive conditional cache size: 405, Positive unconditional cache size: 0, Negative cache size: 33, Negative conditional cache size: 33, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.5ms, 78 PlacesBefore, 78 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 850 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 960 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 256, positive: 220, positive conditional: 220, positive unconditional: 0, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 25, 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: 25, positive: 25, positive conditional: 25, 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: 25, positive: 25, positive conditional: 0, positive unconditional: 25, 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: 256, positive: 195, positive conditional: 195, positive unconditional: 0, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 463, Positive cache size: 430, Positive conditional cache size: 430, Positive unconditional cache size: 0, Negative cache size: 33, Negative conditional cache size: 33, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 602.6ms, 81 PlacesBefore, 81 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 1104 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 410 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 50, positive: 38, positive conditional: 38, 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: 7, positive: 7, positive conditional: 6, positive unconditional: 1, 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: 7, positive: 7, positive conditional: 6, positive unconditional: 1, 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: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 50, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 470, Positive cache size: 437, Positive conditional cache size: 437, Positive unconditional cache size: 0, Negative cache size: 33, Negative conditional cache size: 33, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 268.5ms, 89 PlacesBefore, 89 PlacesAfterwards, 73 TransitionsBefore, 73 TransitionsAfterwards, 1258 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 437 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 67, positive: 56, positive conditional: 56, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 8, positive unconditional: 1, 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: 9, positive: 9, positive conditional: 8, positive unconditional: 1, 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: 9, positive: 9, positive conditional: 0, positive unconditional: 9, 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: 67, positive: 47, positive conditional: 47, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 479, Positive cache size: 446, Positive conditional cache size: 446, Positive unconditional cache size: 0, Negative cache size: 33, Negative conditional cache size: 33, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 114.6ms, 89 PlacesBefore, 89 PlacesAfterwards, 71 TransitionsBefore, 71 TransitionsAfterwards, 1306 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 358 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26, positive: 17, positive conditional: 17, 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: 2, positive: 2, positive conditional: 1, positive unconditional: 1, 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: 2, positive: 2, positive conditional: 1, positive unconditional: 1, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 26, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 481, Positive cache size: 448, Positive conditional cache size: 448, Positive unconditional cache size: 0, Negative cache size: 33, Negative conditional cache size: 33, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4250.1ms, 94 PlacesBefore, 88 PlacesAfterwards, 66 TransitionsBefore, 57 TransitionsAfterwards, 820 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 738 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 565, positive: 546, positive conditional: 546, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 189, positive: 187, positive conditional: 187, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 189, positive: 187, positive conditional: 187, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 189, positive: 187, positive conditional: 0, positive unconditional: 187, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 565, positive: 359, positive conditional: 359, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 189, unknown conditional: 189, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 142, Positive conditional cache size: 142, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1172.0ms, 65 PlacesBefore, 60 PlacesAfterwards, 37 TransitionsBefore, 36 TransitionsAfterwards, 186 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 18 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 18, positive conditional: 18, 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: 12, positive: 12, positive conditional: 12, 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: 12, positive: 12, positive conditional: 12, 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: 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: 18, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 28, Positive cache size: 28, Positive conditional cache size: 28, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, 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: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p3_EAX = 0; [L714] 0 int a = 0; [L715] 0 _Bool main$tmp_guard0; [L716] 0 _Bool main$tmp_guard1; [L718] 0 int x = 0; [L720] 0 int y = 0; [L722] 0 int z = 0; [L723] 0 _Bool z$flush_delayed; [L724] 0 int z$mem_tmp; [L725] 0 _Bool z$r_buff0_thd0; [L726] 0 _Bool z$r_buff0_thd1; [L727] 0 _Bool z$r_buff0_thd2; [L728] 0 _Bool z$r_buff0_thd3; [L729] 0 _Bool z$r_buff0_thd4; [L730] 0 _Bool z$r_buff1_thd0; [L731] 0 _Bool z$r_buff1_thd1; [L732] 0 _Bool z$r_buff1_thd2; [L733] 0 _Bool z$r_buff1_thd3; [L734] 0 _Bool z$r_buff1_thd4; [L735] 0 _Bool z$read_delayed; [L736] 0 int *z$read_delayed_var; [L737] 0 int z$w_buff0; [L738] 0 _Bool z$w_buff0_used; [L739] 0 int z$w_buff1; [L740] 0 _Bool z$w_buff1_used; [L741] 0 _Bool weak$$choice0; [L742] 0 _Bool weak$$choice2; [L834] 0 pthread_t t1541; [L835] FCALL, FORK 0 pthread_create(&t1541, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L836] 0 pthread_t t1542; [L837] FCALL, FORK 0 pthread_create(&t1542, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L838] 0 pthread_t t1543; [L839] FCALL, FORK 0 pthread_create(&t1543, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L840] 0 pthread_t t1544; [L841] FCALL, FORK 0 pthread_create(&t1544, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L796] 4 z$w_buff1 = z$w_buff0 [L797] 4 z$w_buff0 = 2 [L798] 4 z$w_buff1_used = z$w_buff0_used [L799] 4 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 4 !(!expression) [L801] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L802] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L803] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L804] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L805] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L806] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L809] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L746] 1 a = 1 [L749] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=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=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L761] 2 x = 2 [L764] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L776] 3 y = 2 [L779] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L754] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L756] 1 return 0; [L769] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L771] 2 return 0; [L812] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L812] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L813] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L813] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L814] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L814] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L815] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L815] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L816] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L816] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L782] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L782] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L782] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L782] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L783] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L783] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L784] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L784] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L785] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L785] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L786] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L786] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L789] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L791] 3 return 0; [L819] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L821] 4 return 0; [L843] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L847] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L847] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L848] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L848] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L849] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L849] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L850] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L850] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L851] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L851] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L854] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L855] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L856] 0 z$flush_delayed = weak$$choice2 [L857] 0 z$mem_tmp = z [L858] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L858] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L859] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L859] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L860] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L860] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L861] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L861] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L862] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L862] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L863] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L863] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L864] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L864] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L865] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2 && __unbuffered_p3_EAX == 0) [L866] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L866] 0 z = z$flush_delayed ? z$mem_tmp : z [L867] 0 z$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=8, weak$$choice2=1, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 111 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 23644.4ms, OverallIterations: 23, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2372.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7488.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 80 SDtfs, 56 SDslu, 25 SDs, 0 SdLazy, 500 SolverSat, 166 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 469.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 579.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=728occurred in iteration=19, InterpolantAutomatonStates: 107, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 51.6ms SsaConstructionTime, 408.5ms SatisfiabilityAnalysisTime, 1254.5ms InterpolantComputationTime, 379 NumberOfCodeBlocks, 379 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 337 ConstructedInterpolants, 0 QuantifiedInterpolants, 2686 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 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...