/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/safe027_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:47:21,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:47:21,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:47:21,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-26 00:47:21,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:47:21,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:47:21,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:47:21,518 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 00:47:21,552 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:47:21,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:47:21,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:47:21,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:47:21,556 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:47:21,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:47:21,556 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:47:21,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:47:21,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:47:21,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:47:21,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:47:21,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:47:21,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:47:21,558 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:47:21,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:47:21,558 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:47:21,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:47:21,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:47:21,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:47:21,559 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:47:21,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:47:21,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:47:21,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:47:21,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:47:21,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:47:21,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:47:21,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:47:21,560 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:47:21,560 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:47:21,560 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:47:21,560 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:47:21,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:47:21,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:47:21,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:47:21,887 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:47:21,887 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:47:21,888 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2021-03-26 00:47:21,954 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea19925a3/2ffc83a5327a45a0accdb64878dee5e6/FLAG1d05a37a1 [2021-03-26 00:47:22,375 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:47:22,376 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2021-03-26 00:47:22,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea19925a3/2ffc83a5327a45a0accdb64878dee5e6/FLAG1d05a37a1 [2021-03-26 00:47:22,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea19925a3/2ffc83a5327a45a0accdb64878dee5e6 [2021-03-26 00:47:22,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:47:22,403 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:47:22,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:47:22,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:47:22,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:47:22,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:47:22" (1/1) ... [2021-03-26 00:47:22,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9110135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:22, skipping insertion in model container [2021-03-26 00:47:22,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:47:22" (1/1) ... [2021-03-26 00:47:22,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:47:22,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:47:22,590 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/safe027_tso.opt.i[949,962] [2021-03-26 00:47:22,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:47:22,734 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:47:22,746 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/safe027_tso.opt.i[949,962] [2021-03-26 00:47:22,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:47:22,849 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:47:22,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:22 WrapperNode [2021-03-26 00:47:22,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:47:22,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:47:22,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:47:22,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:47:22,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:22" (1/1) ... [2021-03-26 00:47:22,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:22" (1/1) ... [2021-03-26 00:47:22,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:47:22,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:47:22,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:47:22,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:47:22,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:22" (1/1) ... [2021-03-26 00:47:22,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:22" (1/1) ... [2021-03-26 00:47:22,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:22" (1/1) ... [2021-03-26 00:47:22,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:22" (1/1) ... [2021-03-26 00:47:22,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:22" (1/1) ... [2021-03-26 00:47:22,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:22" (1/1) ... [2021-03-26 00:47:22,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:22" (1/1) ... [2021-03-26 00:47:22,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:47:22,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:47:22,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:47:22,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:47:22,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:22" (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 00:47:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:47:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:47:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:47:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:47:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:47:23,008 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:47:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:47:23,008 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:47:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:47:23,008 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:47:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-26 00:47:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-26 00:47:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:47:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:47:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:47:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:47:23,010 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 00:47:23,303 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:47:23,304 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 00:47:23,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:47:23 BoogieIcfgContainer [2021-03-26 00:47:23,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:47:23,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:47:23,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:47:23,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:47:23,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:47:22" (1/3) ... [2021-03-26 00:47:23,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52655192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:47:23, skipping insertion in model container [2021-03-26 00:47:23,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:22" (2/3) ... [2021-03-26 00:47:23,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52655192 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:47:23, skipping insertion in model container [2021-03-26 00:47:23,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:47:23" (3/3) ... [2021-03-26 00:47:23,312 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.opt.i [2021-03-26 00:47:23,316 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:47:23,320 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:47:23,321 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:47:23,345 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,346 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,346 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,346 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,346 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,346 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,347 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,347 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,347 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,348 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,348 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,348 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,349 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,349 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,349 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,349 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,349 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,349 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,350 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,350 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,350 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,350 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,350 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,351 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,351 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,351 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,351 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,351 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,352 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,352 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,352 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,352 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,352 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,352 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,352 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,353 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,353 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,353 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,353 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,353 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,353 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,353 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,354 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,355 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,356 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,356 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,356 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,359 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,360 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,360 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,360 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,361 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,361 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,362 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,362 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,363 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,363 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,363 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,363 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:23,365 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:47:23,382 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-26 00:47:23,399 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:47:23,399 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:47:23,400 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:47:23,400 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:47:23,400 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:47:23,400 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:47:23,400 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:47:23,400 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:47:23,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 87 transitions, 194 flow [2021-03-26 00:47:23,482 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-03-26 00:47:23,482 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:23,487 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-26 00:47:23,488 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 87 transitions, 194 flow [2021-03-26 00:47:23,502 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 69 transitions, 150 flow [2021-03-26 00:47:23,504 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:23,513 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 69 transitions, 150 flow [2021-03-26 00:47:23,518 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 69 transitions, 150 flow [2021-03-26 00:47:23,520 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 69 transitions, 150 flow [2021-03-26 00:47:23,545 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2021-03-26 00:47:23,545 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:23,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-03-26 00:47:23,548 INFO L142 LiptonReduction]: Number of co-enabled transitions 1250 [2021-03-26 00:47:24,944 INFO L154 LiptonReduction]: Checked pairs total: 1387 [2021-03-26 00:47:24,944 INFO L156 LiptonReduction]: Total number of compositions: 44 [2021-03-26 00:47:24,949 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1446 [2021-03-26 00:47:24,963 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-26 00:47:24,963 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:24,963 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:24,964 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:24,965 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:24,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:24,972 INFO L82 PathProgramCache]: Analyzing trace with hash 654156635, now seen corresponding path program 1 times [2021-03-26 00:47:24,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:24,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400564266] [2021-03-26 00:47:24,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:25,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:25,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:25,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:25,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:25,168 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 00:47:25,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400564266] [2021-03-26 00:47:25,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:25,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:47:25,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474221083] [2021-03-26 00:47:25,176 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:47:25,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:25,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:47:25,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:47:25,191 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 131 [2021-03-26 00:47:25,196 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states 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 00:47:25,196 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:25,196 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 131 [2021-03-26 00:47:25,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:25,211 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-26 00:47:25,212 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:25,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 25 events. 0/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:47:25,214 INFO L132 encePairwiseOnDemand]: 128/131 looper letters, 1 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2021-03-26 00:47:25,214 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 25 transitions, 68 flow [2021-03-26 00:47:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:47:25,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:47:25,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2021-03-26 00:47:25,229 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9185750636132316 [2021-03-26 00:47:25,230 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 361 transitions. [2021-03-26 00:47:25,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 361 transitions. [2021-03-26 00:47:25,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:25,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 361 transitions. [2021-03-26 00:47:25,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states 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 00:47:25,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states 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 00:47:25,247 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states 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 00:47:25,248 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 62 flow. Second operand 3 states and 361 transitions. [2021-03-26 00:47:25,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 25 transitions, 68 flow [2021-03-26 00:47:25,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 25 transitions, 64 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 00:47:25,254 INFO L241 Difference]: Finished difference. Result has 37 places, 25 transitions, 66 flow [2021-03-26 00:47:25,256 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2021-03-26 00:47:25,256 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2021-03-26 00:47:25,256 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:25,257 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 25 transitions, 66 flow [2021-03-26 00:47:25,257 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 25 transitions, 66 flow [2021-03-26 00:47:25,257 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 25 transitions, 66 flow [2021-03-26 00:47:25,261 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-26 00:47:25,261 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 00:47:25,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 25 events. 0/25 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:47:25,261 INFO L142 LiptonReduction]: Number of co-enabled transitions 196 [2021-03-26 00:47:25,844 INFO L154 LiptonReduction]: Checked pairs total: 502 [2021-03-26 00:47:25,844 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 00:47:25,845 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 589 [2021-03-26 00:47:25,847 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 58 flow [2021-03-26 00:47:25,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states 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 00:47:25,848 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:25,848 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:25,848 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:47:25,849 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:25,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:25,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1195981847, now seen corresponding path program 1 times [2021-03-26 00:47:25,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:25,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757738686] [2021-03-26 00:47:25,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:25,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:25,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:25,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:25,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:25,952 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:47:25,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:47:25,961 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 00:47:25,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757738686] [2021-03-26 00:47:25,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:25,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:25,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590408310] [2021-03-26 00:47:25,963 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:25,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:25,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:25,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:25,971 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 135 [2021-03-26 00:47:25,972 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states 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 00:47:25,972 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:25,972 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 135 [2021-03-26 00:47:25,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:26,021 INFO L129 PetriNetUnfolder]: 38/105 cut-off events. [2021-03-26 00:47:26,021 INFO L130 PetriNetUnfolder]: For 22/48 co-relation queries the response was YES. [2021-03-26 00:47:26,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 105 events. 38/105 cut-off events. For 22/48 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 389 event pairs, 3 based on Foata normal form. 5/101 useless extension candidates. Maximal degree in co-relation 202. Up to 43 conditions per place. [2021-03-26 00:47:26,024 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 10 selfloop transitions, 12 changer transitions 0/35 dead transitions. [2021-03-26 00:47:26,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 35 transitions, 141 flow [2021-03-26 00:47:26,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:47:26,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:47:26,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 544 transitions. [2021-03-26 00:47:26,027 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8059259259259259 [2021-03-26 00:47:26,027 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 544 transitions. [2021-03-26 00:47:26,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 544 transitions. [2021-03-26 00:47:26,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:26,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 544 transitions. [2021-03-26 00:47:26,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states 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 00:47:26,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 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 00:47:26,033 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 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 00:47:26,033 INFO L185 Difference]: Start difference. First operand has 33 places, 21 transitions, 58 flow. Second operand 5 states and 544 transitions. [2021-03-26 00:47:26,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 35 transitions, 141 flow [2021-03-26 00:47:26,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 35 transitions, 131 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:47:26,035 INFO L241 Difference]: Finished difference. Result has 38 places, 30 transitions, 136 flow [2021-03-26 00:47:26,035 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=136, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2021-03-26 00:47:26,036 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2021-03-26 00:47:26,036 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:26,036 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 30 transitions, 136 flow [2021-03-26 00:47:26,037 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 30 transitions, 136 flow [2021-03-26 00:47:26,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 30 transitions, 136 flow [2021-03-26 00:47:26,052 INFO L129 PetriNetUnfolder]: 29/93 cut-off events. [2021-03-26 00:47:26,052 INFO L130 PetriNetUnfolder]: For 32/59 co-relation queries the response was YES. [2021-03-26 00:47:26,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 93 events. 29/93 cut-off events. For 32/59 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 353 event pairs, 12 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 237. Up to 49 conditions per place. [2021-03-26 00:47:26,056 INFO L142 LiptonReduction]: Number of co-enabled transitions 246 [2021-03-26 00:47:26,207 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-03-26 00:47:26,403 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-03-26 00:47:26,465 INFO L154 LiptonReduction]: Checked pairs total: 238 [2021-03-26 00:47:26,465 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:47:26,466 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 430 [2021-03-26 00:47:26,467 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 132 flow [2021-03-26 00:47:26,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states 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 00:47:26,467 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:26,467 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:26,467 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:47:26,468 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:26,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:26,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1825769221, now seen corresponding path program 1 times [2021-03-26 00:47:26,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:26,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038968242] [2021-03-26 00:47:26,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:26,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:26,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:26,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:26,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:26,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:26,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:26,518 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:47:26,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:47:26,526 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 00:47:26,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038968242] [2021-03-26 00:47:26,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:26,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:47:26,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094954805] [2021-03-26 00:47:26,527 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:47:26,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:26,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:47:26,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:47:26,529 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 136 [2021-03-26 00:47:26,530 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 132 flow. Second operand has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 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 00:47:26,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:26,530 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 136 [2021-03-26 00:47:26,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:26,558 INFO L129 PetriNetUnfolder]: 28/93 cut-off events. [2021-03-26 00:47:26,558 INFO L130 PetriNetUnfolder]: For 125/287 co-relation queries the response was YES. [2021-03-26 00:47:26,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 93 events. 28/93 cut-off events. For 125/287 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 329 event pairs, 3 based on Foata normal form. 8/95 useless extension candidates. Maximal degree in co-relation 292. Up to 44 conditions per place. [2021-03-26 00:47:26,559 INFO L132 encePairwiseOnDemand]: 132/136 looper letters, 8 selfloop transitions, 5 changer transitions 10/36 dead transitions. [2021-03-26 00:47:26,560 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 36 transitions, 221 flow [2021-03-26 00:47:26,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:47:26,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:47:26,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2021-03-26 00:47:26,561 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7941176470588235 [2021-03-26 00:47:26,561 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 432 transitions. [2021-03-26 00:47:26,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 432 transitions. [2021-03-26 00:47:26,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:26,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 432 transitions. [2021-03-26 00:47:26,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states 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 00:47:26,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states 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 00:47:26,564 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states 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 00:47:26,564 INFO L185 Difference]: Start difference. First operand has 37 places, 29 transitions, 132 flow. Second operand 4 states and 432 transitions. [2021-03-26 00:47:26,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 36 transitions, 221 flow [2021-03-26 00:47:26,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 36 transitions, 213 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 00:47:26,567 INFO L241 Difference]: Finished difference. Result has 41 places, 24 transitions, 118 flow [2021-03-26 00:47:26,567 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=41, PETRI_TRANSITIONS=24} [2021-03-26 00:47:26,567 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2021-03-26 00:47:26,567 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:26,568 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 24 transitions, 118 flow [2021-03-26 00:47:26,568 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 24 transitions, 118 flow [2021-03-26 00:47:26,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 24 transitions, 118 flow [2021-03-26 00:47:26,573 INFO L129 PetriNetUnfolder]: 12/50 cut-off events. [2021-03-26 00:47:26,573 INFO L130 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2021-03-26 00:47:26,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 50 events. 12/50 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 125 event pairs, 7 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 138. Up to 26 conditions per place. [2021-03-26 00:47:26,574 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-26 00:47:26,579 INFO L154 LiptonReduction]: Checked pairs total: 64 [2021-03-26 00:47:26,579 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:26,580 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-26 00:47:26,581 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 24 transitions, 118 flow [2021-03-26 00:47:26,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 105.0) internal successors, (525), 5 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 00:47:26,581 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:26,581 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:26,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:47:26,582 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:26,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:26,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1641170085, now seen corresponding path program 1 times [2021-03-26 00:47:26,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:26,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886180246] [2021-03-26 00:47:26,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:26,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:26,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:26,617 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:47:26,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:47:26,624 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 00:47:26,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886180246] [2021-03-26 00:47:26,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:26,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:47:26,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632414085] [2021-03-26 00:47:26,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:26,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:26,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:26,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:26,626 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 136 [2021-03-26 00:47:26,627 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 24 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states 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 00:47:26,627 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:26,627 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 136 [2021-03-26 00:47:26,627 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:26,641 INFO L129 PetriNetUnfolder]: 9/43 cut-off events. [2021-03-26 00:47:26,641 INFO L130 PetriNetUnfolder]: For 52/55 co-relation queries the response was YES. [2021-03-26 00:47:26,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 43 events. 9/43 cut-off events. For 52/55 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 85 event pairs, 6 based on Foata normal form. 2/44 useless extension candidates. Maximal degree in co-relation 136. Up to 21 conditions per place. [2021-03-26 00:47:26,642 INFO L132 encePairwiseOnDemand]: 133/136 looper letters, 6 selfloop transitions, 4 changer transitions 0/25 dead transitions. [2021-03-26 00:47:26,642 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 25 transitions, 144 flow [2021-03-26 00:47:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:47:26,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:47:26,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2021-03-26 00:47:26,644 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8382352941176471 [2021-03-26 00:47:26,644 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2021-03-26 00:47:26,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2021-03-26 00:47:26,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:26,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2021-03-26 00:47:26,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states 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 00:47:26,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states 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 00:47:26,646 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states 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 00:47:26,646 INFO L185 Difference]: Start difference. First operand has 41 places, 24 transitions, 118 flow. Second operand 3 states and 342 transitions. [2021-03-26 00:47:26,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 25 transitions, 144 flow [2021-03-26 00:47:26,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 25 transitions, 120 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-26 00:47:26,648 INFO L241 Difference]: Finished difference. Result has 38 places, 24 transitions, 108 flow [2021-03-26 00:47:26,648 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=38, PETRI_TRANSITIONS=24} [2021-03-26 00:47:26,649 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2021-03-26 00:47:26,649 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:26,649 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 24 transitions, 108 flow [2021-03-26 00:47:26,649 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 24 transitions, 108 flow [2021-03-26 00:47:26,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 24 transitions, 108 flow [2021-03-26 00:47:26,653 INFO L129 PetriNetUnfolder]: 9/43 cut-off events. [2021-03-26 00:47:26,653 INFO L130 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2021-03-26 00:47:26,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 43 events. 9/43 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 86 event pairs, 6 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 110. Up to 22 conditions per place. [2021-03-26 00:47:26,654 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-26 00:47:26,663 INFO L154 LiptonReduction]: Checked pairs total: 79 [2021-03-26 00:47:26,663 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:26,663 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 00:47:26,664 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 24 transitions, 108 flow [2021-03-26 00:47:26,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states 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 00:47:26,665 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:26,665 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:26,665 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:47:26,665 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:26,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:26,665 INFO L82 PathProgramCache]: Analyzing trace with hash -884787457, now seen corresponding path program 1 times [2021-03-26 00:47:26,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:26,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140897144] [2021-03-26 00:47:26,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:26,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:26,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:26,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:26,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:26,717 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 00:47:26,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140897144] [2021-03-26 00:47:26,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:26,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:47:26,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489886709] [2021-03-26 00:47:26,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:26,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:26,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:26,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:26,719 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 136 [2021-03-26 00:47:26,720 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 24 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states 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 00:47:26,720 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:26,720 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 136 [2021-03-26 00:47:26,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:26,743 INFO L129 PetriNetUnfolder]: 17/71 cut-off events. [2021-03-26 00:47:26,744 INFO L130 PetriNetUnfolder]: For 110/111 co-relation queries the response was YES. [2021-03-26 00:47:26,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 71 events. 17/71 cut-off events. For 110/111 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 231 event pairs, 8 based on Foata normal form. 8/76 useless extension candidates. Maximal degree in co-relation 199. Up to 34 conditions per place. [2021-03-26 00:47:26,744 INFO L132 encePairwiseOnDemand]: 132/136 looper letters, 4 selfloop transitions, 5 changer transitions 3/29 dead transitions. [2021-03-26 00:47:26,744 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 29 transitions, 168 flow [2021-03-26 00:47:26,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:47:26,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:47:26,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 462 transitions. [2021-03-26 00:47:26,746 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8492647058823529 [2021-03-26 00:47:26,746 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 462 transitions. [2021-03-26 00:47:26,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 462 transitions. [2021-03-26 00:47:26,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:26,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 462 transitions. [2021-03-26 00:47:26,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states 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 00:47:26,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states 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 00:47:26,749 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states 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 00:47:26,750 INFO L185 Difference]: Start difference. First operand has 38 places, 24 transitions, 108 flow. Second operand 4 states and 462 transitions. [2021-03-26 00:47:26,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 29 transitions, 168 flow [2021-03-26 00:47:26,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 29 transitions, 154 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:47:26,754 INFO L241 Difference]: Finished difference. Result has 41 places, 24 transitions, 120 flow [2021-03-26 00:47:26,754 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=41, PETRI_TRANSITIONS=24} [2021-03-26 00:47:26,754 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2021-03-26 00:47:26,754 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:26,754 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 24 transitions, 120 flow [2021-03-26 00:47:26,755 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 24 transitions, 120 flow [2021-03-26 00:47:26,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 24 transitions, 120 flow [2021-03-26 00:47:26,760 INFO L129 PetriNetUnfolder]: 9/42 cut-off events. [2021-03-26 00:47:26,760 INFO L130 PetriNetUnfolder]: For 41/41 co-relation queries the response was YES. [2021-03-26 00:47:26,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 42 events. 9/42 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 88 event pairs, 6 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 123. Up to 22 conditions per place. [2021-03-26 00:47:26,761 INFO L142 LiptonReduction]: Number of co-enabled transitions 128 [2021-03-26 00:47:26,766 INFO L154 LiptonReduction]: Checked pairs total: 47 [2021-03-26 00:47:26,766 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:26,766 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-26 00:47:26,769 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 24 transitions, 120 flow [2021-03-26 00:47:26,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states 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 00:47:26,769 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:26,769 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:26,769 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:47:26,769 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:26,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:26,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1308151309, now seen corresponding path program 1 times [2021-03-26 00:47:26,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:26,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936083219] [2021-03-26 00:47:26,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:26,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:26,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:26,858 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:47:26,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:47:26,863 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 00:47:26,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936083219] [2021-03-26 00:47:26,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:26,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:47:26,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225484842] [2021-03-26 00:47:26,863 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:26,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:26,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:26,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:26,865 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-03-26 00:47:26,865 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 24 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states 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 00:47:26,865 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:26,865 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-03-26 00:47:26,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:26,930 INFO L129 PetriNetUnfolder]: 175/314 cut-off events. [2021-03-26 00:47:26,930 INFO L130 PetriNetUnfolder]: For 1285/1462 co-relation queries the response was YES. [2021-03-26 00:47:26,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 878 conditions, 314 events. 175/314 cut-off events. For 1285/1462 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 1459 event pairs, 95 based on Foata normal form. 32/307 useless extension candidates. Maximal degree in co-relation 863. Up to 211 conditions per place. [2021-03-26 00:47:26,933 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 10 selfloop transitions, 10 changer transitions 0/37 dead transitions. [2021-03-26 00:47:26,933 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 37 transitions, 186 flow [2021-03-26 00:47:26,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:47:26,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:47:26,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 552 transitions. [2021-03-26 00:47:26,937 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8117647058823529 [2021-03-26 00:47:26,937 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 552 transitions. [2021-03-26 00:47:26,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 552 transitions. [2021-03-26 00:47:26,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:26,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 552 transitions. [2021-03-26 00:47:26,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 110.4) internal successors, (552), 5 states have internal predecessors, (552), 0 states have call successors, (0), 0 states 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 00:47:26,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states 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 00:47:26,940 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states 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 00:47:26,940 INFO L185 Difference]: Start difference. First operand has 41 places, 24 transitions, 120 flow. Second operand 5 states and 552 transitions. [2021-03-26 00:47:26,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 37 transitions, 186 flow [2021-03-26 00:47:26,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 37 transitions, 170 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-26 00:47:26,943 INFO L241 Difference]: Finished difference. Result has 44 places, 33 transitions, 179 flow [2021-03-26 00:47:26,943 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=179, PETRI_PLACES=44, PETRI_TRANSITIONS=33} [2021-03-26 00:47:26,944 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 6 predicate places. [2021-03-26 00:47:26,944 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:26,944 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 33 transitions, 179 flow [2021-03-26 00:47:26,944 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 33 transitions, 179 flow [2021-03-26 00:47:26,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 33 transitions, 179 flow [2021-03-26 00:47:26,980 INFO L129 PetriNetUnfolder]: 165/293 cut-off events. [2021-03-26 00:47:26,980 INFO L130 PetriNetUnfolder]: For 707/979 co-relation queries the response was YES. [2021-03-26 00:47:26,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 986 conditions, 293 events. 165/293 cut-off events. For 707/979 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 1316 event pairs, 88 based on Foata normal form. 1/252 useless extension candidates. Maximal degree in co-relation 972. Up to 216 conditions per place. [2021-03-26 00:47:26,984 INFO L142 LiptonReduction]: Number of co-enabled transitions 212 [2021-03-26 00:47:26,998 INFO L154 LiptonReduction]: Checked pairs total: 37 [2021-03-26 00:47:26,998 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:47:26,998 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-03-26 00:47:27,000 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 173 flow [2021-03-26 00:47:27,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states 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 00:47:27,001 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:27,001 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:27,001 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:47:27,001 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:27,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:27,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1897973574, now seen corresponding path program 1 times [2021-03-26 00:47:27,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:27,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200676724] [2021-03-26 00:47:27,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:27,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:27,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:27,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:27,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:27,047 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:47:27,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:47:27,053 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 00:47:27,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200676724] [2021-03-26 00:47:27,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:27,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:27,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058458851] [2021-03-26 00:47:27,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:47:27,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:27,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:47:27,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:47:27,056 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-03-26 00:47:27,058 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 173 flow. Second operand has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states 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 00:47:27,058 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:27,058 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-03-26 00:47:27,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:27,119 INFO L129 PetriNetUnfolder]: 119/237 cut-off events. [2021-03-26 00:47:27,119 INFO L130 PetriNetUnfolder]: For 987/1301 co-relation queries the response was YES. [2021-03-26 00:47:27,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 237 events. 119/237 cut-off events. For 987/1301 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1009 event pairs, 30 based on Foata normal form. 59/277 useless extension candidates. Maximal degree in co-relation 955. Up to 184 conditions per place. [2021-03-26 00:47:27,122 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 10 selfloop transitions, 14 changer transitions 0/41 dead transitions. [2021-03-26 00:47:27,122 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 41 transitions, 273 flow [2021-03-26 00:47:27,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:47:27,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:47:27,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 662 transitions. [2021-03-26 00:47:27,124 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8112745098039216 [2021-03-26 00:47:27,124 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 662 transitions. [2021-03-26 00:47:27,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 662 transitions. [2021-03-26 00:47:27,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:27,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 662 transitions. [2021-03-26 00:47:27,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.33333333333333) internal successors, (662), 6 states have internal predecessors, (662), 0 states have call successors, (0), 0 states 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 00:47:27,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 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 00:47:27,127 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 136.0) internal successors, (952), 7 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 00:47:27,127 INFO L185 Difference]: Start difference. First operand has 44 places, 32 transitions, 173 flow. Second operand 6 states and 662 transitions. [2021-03-26 00:47:27,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 41 transitions, 273 flow [2021-03-26 00:47:27,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 266 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 00:47:27,131 INFO L241 Difference]: Finished difference. Result has 48 places, 37 transitions, 262 flow [2021-03-26 00:47:27,131 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=262, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2021-03-26 00:47:27,132 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 10 predicate places. [2021-03-26 00:47:27,132 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:27,132 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 37 transitions, 262 flow [2021-03-26 00:47:27,132 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 37 transitions, 262 flow [2021-03-26 00:47:27,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 37 transitions, 262 flow [2021-03-26 00:47:27,153 INFO L129 PetriNetUnfolder]: 107/215 cut-off events. [2021-03-26 00:47:27,153 INFO L130 PetriNetUnfolder]: For 839/1161 co-relation queries the response was YES. [2021-03-26 00:47:27,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1017 conditions, 215 events. 107/215 cut-off events. For 839/1161 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 984 event pairs, 28 based on Foata normal form. 5/204 useless extension candidates. Maximal degree in co-relation 1000. Up to 162 conditions per place. [2021-03-26 00:47:27,156 INFO L142 LiptonReduction]: Number of co-enabled transitions 228 [2021-03-26 00:47:27,173 INFO L154 LiptonReduction]: Checked pairs total: 43 [2021-03-26 00:47:27,174 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:47:27,174 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-03-26 00:47:27,177 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 36 transitions, 254 flow [2021-03-26 00:47:27,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states 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 00:47:27,177 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:27,177 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:27,177 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:47:27,178 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:27,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:27,178 INFO L82 PathProgramCache]: Analyzing trace with hash -996330023, now seen corresponding path program 1 times [2021-03-26 00:47:27,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:27,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411194561] [2021-03-26 00:47:27,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:27,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:27,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:27,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:27,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:27,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:27,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:27,251 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:47:27,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:47:27,256 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 00:47:27,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411194561] [2021-03-26 00:47:27,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:27,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:47:27,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392882677] [2021-03-26 00:47:27,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:47:27,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:27,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:47:27,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:47:27,259 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-03-26 00:47:27,260 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states 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 00:47:27,260 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:27,260 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-03-26 00:47:27,260 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:27,319 INFO L129 PetriNetUnfolder]: 62/146 cut-off events. [2021-03-26 00:47:27,319 INFO L130 PetriNetUnfolder]: For 882/1131 co-relation queries the response was YES. [2021-03-26 00:47:27,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 146 events. 62/146 cut-off events. For 882/1131 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 566 event pairs, 6 based on Foata normal form. 58/195 useless extension candidates. Maximal degree in co-relation 751. Up to 114 conditions per place. [2021-03-26 00:47:27,320 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 6 selfloop transitions, 18 changer transitions 4/45 dead transitions. [2021-03-26 00:47:27,321 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 45 transitions, 396 flow [2021-03-26 00:47:27,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:47:27,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:47:27,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 772 transitions. [2021-03-26 00:47:27,323 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8109243697478992 [2021-03-26 00:47:27,323 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 772 transitions. [2021-03-26 00:47:27,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 772 transitions. [2021-03-26 00:47:27,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:27,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 772 transitions. [2021-03-26 00:47:27,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 110.28571428571429) internal successors, (772), 7 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 00:47:27,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states 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 00:47:27,327 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 136.0) internal successors, (1088), 8 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states 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 00:47:27,327 INFO L185 Difference]: Start difference. First operand has 48 places, 36 transitions, 254 flow. Second operand 7 states and 772 transitions. [2021-03-26 00:47:27,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 45 transitions, 396 flow [2021-03-26 00:47:27,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 45 transitions, 334 flow, removed 26 selfloop flow, removed 4 redundant places. [2021-03-26 00:47:27,330 INFO L241 Difference]: Finished difference. Result has 51 places, 41 transitions, 314 flow [2021-03-26 00:47:27,330 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=314, PETRI_PLACES=51, PETRI_TRANSITIONS=41} [2021-03-26 00:47:27,330 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 13 predicate places. [2021-03-26 00:47:27,330 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:27,330 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 41 transitions, 314 flow [2021-03-26 00:47:27,330 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 41 transitions, 314 flow [2021-03-26 00:47:27,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 314 flow [2021-03-26 00:47:27,344 INFO L129 PetriNetUnfolder]: 53/129 cut-off events. [2021-03-26 00:47:27,344 INFO L130 PetriNetUnfolder]: For 463/533 co-relation queries the response was YES. [2021-03-26 00:47:27,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 598 conditions, 129 events. 53/129 cut-off events. For 463/533 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 495 event pairs, 6 based on Foata normal form. 4/125 useless extension candidates. Maximal degree in co-relation 580. Up to 89 conditions per place. [2021-03-26 00:47:27,346 INFO L142 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-26 00:47:27,355 INFO L154 LiptonReduction]: Checked pairs total: 41 [2021-03-26 00:47:27,355 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:47:27,355 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-26 00:47:27,357 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 304 flow [2021-03-26 00:47:27,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states 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 00:47:27,357 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:27,357 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:27,358 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 00:47:27,358 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:27,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:27,358 INFO L82 PathProgramCache]: Analyzing trace with hash 49234314, now seen corresponding path program 1 times [2021-03-26 00:47:27,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:27,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314240050] [2021-03-26 00:47:27,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:27,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:27,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:27,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:27,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:27,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:27,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:27,412 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 00:47:27,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314240050] [2021-03-26 00:47:27,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:27,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:27,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252840366] [2021-03-26 00:47:27,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:27,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:27,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:27,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:27,414 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 136 [2021-03-26 00:47:27,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 304 flow. Second operand has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states 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 00:47:27,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:27,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 136 [2021-03-26 00:47:27,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:27,443 INFO L129 PetriNetUnfolder]: 65/153 cut-off events. [2021-03-26 00:47:27,444 INFO L130 PetriNetUnfolder]: For 698/759 co-relation queries the response was YES. [2021-03-26 00:47:27,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 153 events. 65/153 cut-off events. For 698/759 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 578 event pairs, 5 based on Foata normal form. 7/149 useless extension candidates. Maximal degree in co-relation 667. Up to 106 conditions per place. [2021-03-26 00:47:27,445 INFO L132 encePairwiseOnDemand]: 133/136 looper letters, 6 selfloop transitions, 3 changer transitions 0/38 dead transitions. [2021-03-26 00:47:27,445 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 38 transitions, 285 flow [2021-03-26 00:47:27,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:47:27,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:47:27,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 464 transitions. [2021-03-26 00:47:27,447 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8529411764705882 [2021-03-26 00:47:27,447 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 464 transitions. [2021-03-26 00:47:27,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 464 transitions. [2021-03-26 00:47:27,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:27,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 464 transitions. [2021-03-26 00:47:27,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states 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 00:47:27,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states 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 00:47:27,449 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states 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 00:47:27,450 INFO L185 Difference]: Start difference. First operand has 51 places, 40 transitions, 304 flow. Second operand 4 states and 464 transitions. [2021-03-26 00:47:27,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 38 transitions, 285 flow [2021-03-26 00:47:27,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 38 transitions, 244 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-03-26 00:47:27,454 INFO L241 Difference]: Finished difference. Result has 50 places, 37 transitions, 235 flow [2021-03-26 00:47:27,455 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=50, PETRI_TRANSITIONS=37} [2021-03-26 00:47:27,455 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 12 predicate places. [2021-03-26 00:47:27,455 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:27,455 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 37 transitions, 235 flow [2021-03-26 00:47:27,455 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 37 transitions, 235 flow [2021-03-26 00:47:27,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 37 transitions, 235 flow [2021-03-26 00:47:27,466 INFO L129 PetriNetUnfolder]: 61/144 cut-off events. [2021-03-26 00:47:27,466 INFO L130 PetriNetUnfolder]: For 321/334 co-relation queries the response was YES. [2021-03-26 00:47:27,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 144 events. 61/144 cut-off events. For 321/334 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 588 event pairs, 6 based on Foata normal form. 1/133 useless extension candidates. Maximal degree in co-relation 515. Up to 68 conditions per place. [2021-03-26 00:47:27,468 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-26 00:47:27,471 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:47:27,471 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:27,471 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-26 00:47:27,472 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 37 transitions, 235 flow [2021-03-26 00:47:27,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states 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 00:47:27,473 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:27,473 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:27,473 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 00:47:27,473 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:27,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:27,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1878171646, now seen corresponding path program 2 times [2021-03-26 00:47:27,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:27,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422502584] [2021-03-26 00:47:27,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:27,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:27,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:27,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:27,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:27,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:27,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:27,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:27,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:27,549 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:47:27,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:47:27,555 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 00:47:27,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422502584] [2021-03-26 00:47:27,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:27,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 00:47:27,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131172130] [2021-03-26 00:47:27,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 00:47:27,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:27,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 00:47:27,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-26 00:47:27,558 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 136 [2021-03-26 00:47:27,558 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 37 transitions, 235 flow. Second operand has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 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 00:47:27,558 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:27,558 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 136 [2021-03-26 00:47:27,558 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:27,627 INFO L129 PetriNetUnfolder]: 54/131 cut-off events. [2021-03-26 00:47:27,627 INFO L130 PetriNetUnfolder]: For 378/504 co-relation queries the response was YES. [2021-03-26 00:47:27,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 563 conditions, 131 events. 54/131 cut-off events. For 378/504 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 476 event pairs, 2 based on Foata normal form. 42/161 useless extension candidates. Maximal degree in co-relation 543. Up to 63 conditions per place. [2021-03-26 00:47:27,628 INFO L132 encePairwiseOnDemand]: 129/136 looper letters, 2 selfloop transitions, 17 changer transitions 10/42 dead transitions. [2021-03-26 00:47:27,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 42 transitions, 331 flow [2021-03-26 00:47:27,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 00:47:27,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 00:47:27,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 874 transitions. [2021-03-26 00:47:27,631 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8033088235294118 [2021-03-26 00:47:27,631 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 874 transitions. [2021-03-26 00:47:27,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 874 transitions. [2021-03-26 00:47:27,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:27,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 874 transitions. [2021-03-26 00:47:27,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 109.25) internal successors, (874), 8 states have internal predecessors, (874), 0 states have call successors, (0), 0 states 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 00:47:27,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states 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 00:47:27,636 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 136.0) internal successors, (1224), 9 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states 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 00:47:27,636 INFO L185 Difference]: Start difference. First operand has 50 places, 37 transitions, 235 flow. Second operand 8 states and 874 transitions. [2021-03-26 00:47:27,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 42 transitions, 331 flow [2021-03-26 00:47:27,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 42 transitions, 313 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-03-26 00:47:27,639 INFO L241 Difference]: Finished difference. Result has 59 places, 32 transitions, 235 flow [2021-03-26 00:47:27,639 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=235, PETRI_PLACES=59, PETRI_TRANSITIONS=32} [2021-03-26 00:47:27,640 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 21 predicate places. [2021-03-26 00:47:27,640 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:27,640 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 32 transitions, 235 flow [2021-03-26 00:47:27,640 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 32 transitions, 235 flow [2021-03-26 00:47:27,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 32 transitions, 235 flow [2021-03-26 00:47:27,645 INFO L129 PetriNetUnfolder]: 22/62 cut-off events. [2021-03-26 00:47:27,645 INFO L130 PetriNetUnfolder]: For 143/165 co-relation queries the response was YES. [2021-03-26 00:47:27,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 62 events. 22/62 cut-off events. For 143/165 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 147 event pairs, 0 based on Foata normal form. 1/57 useless extension candidates. Maximal degree in co-relation 234. Up to 24 conditions per place. [2021-03-26 00:47:27,646 INFO L142 LiptonReduction]: Number of co-enabled transitions 84 [2021-03-26 00:47:27,870 INFO L154 LiptonReduction]: Checked pairs total: 33 [2021-03-26 00:47:27,871 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 00:47:27,871 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 231 [2021-03-26 00:47:27,872 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 29 transitions, 240 flow [2021-03-26 00:47:27,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 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 00:47:27,872 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:27,872 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 00:47:27,872 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 00:47:27,872 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:27,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:27,873 INFO L82 PathProgramCache]: Analyzing trace with hash -349431497, now seen corresponding path program 1 times [2021-03-26 00:47:27,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:27,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144597555] [2021-03-26 00:47:27,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:27,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:27,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:27,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:27,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:27,932 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:47:27,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:47:27,946 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 00:47:27,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144597555] [2021-03-26 00:47:27,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:27,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:27,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472145551] [2021-03-26 00:47:27,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:27,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:27,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:27,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:27,948 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 142 [2021-03-26 00:47:27,948 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 29 transitions, 240 flow. Second operand has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 states 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 00:47:27,948 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:27,948 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 142 [2021-03-26 00:47:27,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:27,973 INFO L129 PetriNetUnfolder]: 17/49 cut-off events. [2021-03-26 00:47:27,973 INFO L130 PetriNetUnfolder]: For 208/227 co-relation queries the response was YES. [2021-03-26 00:47:27,973 INFO L84 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 49 events. 17/49 cut-off events. For 208/227 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 108 event pairs, 0 based on Foata normal form. 4/50 useless extension candidates. Maximal degree in co-relation 208. Up to 17 conditions per place. [2021-03-26 00:47:27,973 INFO L132 encePairwiseOnDemand]: 134/142 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2021-03-26 00:47:27,973 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 28 transitions, 228 flow [2021-03-26 00:47:27,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:47:27,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:47:27,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 528 transitions. [2021-03-26 00:47:27,975 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7436619718309859 [2021-03-26 00:47:27,975 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 528 transitions. [2021-03-26 00:47:27,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 528 transitions. [2021-03-26 00:47:27,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:27,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 528 transitions. [2021-03-26 00:47:27,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.6) internal successors, (528), 5 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:27,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states 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 00:47:27,978 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states 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 00:47:27,978 INFO L185 Difference]: Start difference. First operand has 52 places, 29 transitions, 240 flow. Second operand 5 states and 528 transitions. [2021-03-26 00:47:27,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 28 transitions, 228 flow [2021-03-26 00:47:27,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 28 transitions, 115 flow, removed 20 selfloop flow, removed 15 redundant places. [2021-03-26 00:47:27,979 INFO L241 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2021-03-26 00:47:27,979 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2021-03-26 00:47:27,979 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 2 predicate places. [2021-03-26 00:47:27,979 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:27,980 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 0 transitions, 0 flow [2021-03-26 00:47:27,980 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 0 transitions, 0 flow [2021-03-26 00:47:27,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 00:47:27,980 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 00:47:27,980 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:27,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 00:47:27,980 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 00:47:27,980 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:47:27,980 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:27,980 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 00:47:27,981 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 00:47:27,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 states 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 00:47:27,981 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 00:47:27,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:47:27 BasicIcfg [2021-03-26 00:47:27,985 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:47:27,986 INFO L168 Benchmark]: Toolchain (without parser) took 5582.77 ms. Allocated memory was 255.9 MB in the beginning and 411.0 MB in the end (delta: 155.2 MB). Free memory was 235.5 MB in the beginning and 258.9 MB in the end (delta: -23.4 MB). Peak memory consumption was 132.9 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:27,987 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:47:27,987 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.91 ms. Allocated memory was 255.9 MB in the beginning and 341.8 MB in the end (delta: 86.0 MB). Free memory was 235.1 MB in the beginning and 303.9 MB in the end (delta: -68.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:27,987 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.58 ms. Allocated memory is still 341.8 MB. Free memory was 303.9 MB in the beginning and 301.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:27,987 INFO L168 Benchmark]: Boogie Preprocessor took 45.33 ms. Allocated memory is still 341.8 MB. Free memory was 301.9 MB in the beginning and 300.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:47:27,987 INFO L168 Benchmark]: RCFGBuilder took 355.51 ms. Allocated memory is still 341.8 MB. Free memory was 300.4 MB in the beginning and 276.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:27,988 INFO L168 Benchmark]: TraceAbstraction took 4678.70 ms. Allocated memory was 341.8 MB in the beginning and 411.0 MB in the end (delta: 69.2 MB). Free memory was 276.2 MB in the beginning and 258.9 MB in the end (delta: 17.4 MB). Peak memory consumption was 88.6 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:27,993 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 445.91 ms. Allocated memory was 255.9 MB in the beginning and 341.8 MB in the end (delta: 86.0 MB). Free memory was 235.1 MB in the beginning and 303.9 MB in the end (delta: -68.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 52.58 ms. Allocated memory is still 341.8 MB. Free memory was 303.9 MB in the beginning and 301.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 45.33 ms. Allocated memory is still 341.8 MB. Free memory was 301.9 MB in the beginning and 300.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 355.51 ms. Allocated memory is still 341.8 MB. Free memory was 300.4 MB in the beginning and 276.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4678.70 ms. Allocated memory was 341.8 MB in the beginning and 411.0 MB in the end (delta: 69.2 MB). Free memory was 276.2 MB in the beginning and 258.9 MB in the end (delta: 17.4 MB). Peak memory consumption was 88.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1426.9ms, 81 PlacesBefore, 38 PlacesAfterwards, 69 TransitionsBefore, 25 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 4 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 44 TotalNumberOfCompositions, 1387 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1029, positive: 995, positive conditional: 995, 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: 867, positive: 841, positive conditional: 0, positive unconditional: 841, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 867, positive: 841, positive conditional: 0, positive unconditional: 841, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 867, positive: 829, positive conditional: 0, positive unconditional: 829, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 136, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1029, positive: 154, positive conditional: 154, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 867, unknown conditional: 867, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 34, Positive conditional cache size: 34, 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: 587.4ms, 37 PlacesBefore, 33 PlacesAfterwards, 25 TransitionsBefore, 21 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 502 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 202, positive: 163, positive conditional: 163, positive unconditional: 0, negative: 39, negative conditional: 39, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 67, positive: 52, positive conditional: 5, positive unconditional: 47, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 67, positive: 52, positive conditional: 5, positive unconditional: 47, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 67, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 105, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 72, negative conditional: 21, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 202, positive: 111, positive conditional: 111, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 67, unknown conditional: 67, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 83, Positive cache size: 67, Positive conditional cache size: 67, Positive unconditional cache size: 0, Negative cache size: 16, Negative conditional cache size: 16, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 428.9ms, 38 PlacesBefore, 37 PlacesAfterwards, 30 TransitionsBefore, 29 TransitionsAfterwards, 246 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 238 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 160, positive: 146, positive conditional: 146, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 32, positive: 31, positive conditional: 15, positive unconditional: 16, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 32, positive: 31, positive conditional: 15, positive unconditional: 16, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 32, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 160, positive: 115, positive conditional: 115, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 115, Positive cache size: 98, Positive conditional cache size: 98, Positive unconditional cache size: 0, Negative cache size: 17, Negative conditional cache size: 17, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.5ms, 41 PlacesBefore, 41 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 64 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 30, positive conditional: 30, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 12, positive conditional: 5, positive unconditional: 7, 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: 13, positive: 12, positive conditional: 5, positive unconditional: 7, 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: 13, positive: 12, positive conditional: 0, positive unconditional: 12, 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: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 35, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 128, Positive cache size: 110, Positive conditional cache size: 110, Positive unconditional cache size: 0, Negative cache size: 18, Negative conditional cache size: 18, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.0ms, 38 PlacesBefore, 38 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 79 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 9, positive conditional: 8, positive unconditional: 1, 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: 11, positive: 9, positive conditional: 8, positive unconditional: 1, 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: 11, positive: 9, positive conditional: 0, positive unconditional: 9, 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: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 40, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 119, Positive conditional cache size: 119, Positive unconditional cache size: 0, Negative cache size: 20, Negative conditional cache size: 20, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.8ms, 41 PlacesBefore, 41 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 128 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 47 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 29, positive conditional: 29, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 3, positive unconditional: 5, 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: 9, positive: 8, positive conditional: 3, positive unconditional: 5, 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: 9, positive: 8, positive conditional: 0, positive unconditional: 8, 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: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 33, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 127, Positive conditional cache size: 127, Positive unconditional cache size: 0, Negative cache size: 21, Negative conditional cache size: 21, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.8ms, 44 PlacesBefore, 44 PlacesAfterwards, 33 TransitionsBefore, 32 TransitionsAfterwards, 212 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 37 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 12, 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: 15, positive: 15, positive conditional: 12, 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: 15, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 20, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 144, Positive cache size: 127, Positive conditional cache size: 127, Positive unconditional cache size: 0, Negative cache size: 17, Negative conditional cache size: 17, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.6ms, 48 PlacesBefore, 48 PlacesAfterwards, 37 TransitionsBefore, 36 TransitionsAfterwards, 228 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 43 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 11, 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: 11, positive: 11, positive conditional: 11, 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: 11, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 14, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 144, Positive cache size: 127, Positive conditional cache size: 127, Positive unconditional cache size: 0, Negative cache size: 17, Negative conditional cache size: 17, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.0ms, 51 PlacesBefore, 51 PlacesAfterwards, 41 TransitionsBefore, 40 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 41 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 2, negative conditional: 2, 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: 10, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 10, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 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: 16, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 147, Positive cache size: 130, Positive conditional cache size: 130, Positive unconditional cache size: 0, Negative cache size: 17, Negative conditional cache size: 17, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.2ms, 50 PlacesBefore, 50 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 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] , Statistics on independence cache: Total cache size (in pairs): 147, Positive cache size: 130, Positive conditional cache size: 130, Positive unconditional cache size: 0, Negative cache size: 17, Negative conditional cache size: 17, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 230.6ms, 59 PlacesBefore, 52 PlacesAfterwards, 32 TransitionsBefore, 29 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 33 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 33, positive conditional: 33, 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: 30, positive: 30, positive conditional: 30, 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: 30, positive: 30, positive conditional: 30, 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: 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: 33, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 30, unknown conditional: 30, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 9, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 40 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 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] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 9, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 6.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4586.2ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 621.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1556.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 45 SDtfs, 46 SDslu, 34 SDs, 0 SdLazy, 216 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 144.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 145.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=314occurred in iteration=8, InterpolantAutomatonStates: 54, 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: 25.3ms SsaConstructionTime, 202.4ms SatisfiabilityAnalysisTime, 541.9ms InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 711 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...