/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/safe020_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:16:32,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:16:32,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:16:32,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:16:32,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:16:32,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:16:32,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:16:32,241 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 00:16:32,298 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:16:32,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:16:32,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:16:32,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:16:32,304 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:16:32,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:16:32,304 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:16:32,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:16:32,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:16:32,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:16:32,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:16:32,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:16:32,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:16:32,307 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:16:32,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:16:32,307 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:16:32,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:16:32,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:16:32,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:16:32,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:16:32,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:16:32,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:16:32,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:16:32,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:16:32,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:16:32,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:16:32,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:16:32,310 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:16:32,310 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:16:32,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:16:32,311 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:16:32,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:16:32,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:16:32,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:16:32,812 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:16:32,813 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:16:32,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i [2021-04-29 00:16:32,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33e34eb9e/1eea5460f32c4e5591119b3e27146756/FLAG2e19ff211 [2021-04-29 00:16:33,666 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:16:33,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_tso.oepc.i [2021-04-29 00:16:33,682 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33e34eb9e/1eea5460f32c4e5591119b3e27146756/FLAG2e19ff211 [2021-04-29 00:16:33,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33e34eb9e/1eea5460f32c4e5591119b3e27146756 [2021-04-29 00:16:33,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:16:33,973 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:16:33,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:16:33,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:16:33,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:16:33,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:16:33" (1/1) ... [2021-04-29 00:16:33,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335586de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:33, skipping insertion in model container [2021-04-29 00:16:33,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:16:33" (1/1) ... [2021-04-29 00:16:33,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:16:34,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:16:34,227 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/safe020_tso.oepc.i[950,963] [2021-04-29 00:16:34,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:16:34,445 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:16:34,464 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/safe020_tso.oepc.i[950,963] [2021-04-29 00:16:34,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:16:34,700 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:16:34,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:34 WrapperNode [2021-04-29 00:16:34,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:16:34,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:16:34,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:16:34,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:16:34,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:34" (1/1) ... [2021-04-29 00:16:34,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:34" (1/1) ... [2021-04-29 00:16:34,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:16:34,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:16:34,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:16:34,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:16:34,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:34" (1/1) ... [2021-04-29 00:16:34,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:34" (1/1) ... [2021-04-29 00:16:34,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:34" (1/1) ... [2021-04-29 00:16:34,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:34" (1/1) ... [2021-04-29 00:16:34,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:34" (1/1) ... [2021-04-29 00:16:34,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:34" (1/1) ... [2021-04-29 00:16:34,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:34" (1/1) ... [2021-04-29 00:16:34,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:16:34,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:16:34,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:16:34,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:16:34,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:16:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:16:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:16:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:16:34,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:16:34,920 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:16:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:16:34,921 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:16:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:16:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:16:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:16:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:16:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:16:34,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:16:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:16:34,924 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:16:35,589 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:16:35,590 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:16:35,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:16:35 BoogieIcfgContainer [2021-04-29 00:16:35,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:16:35,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:16:35,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:16:35,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:16:35,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:16:33" (1/3) ... [2021-04-29 00:16:35,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669b3e32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:16:35, skipping insertion in model container [2021-04-29 00:16:35,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:16:34" (2/3) ... [2021-04-29 00:16:35,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669b3e32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:16:35, skipping insertion in model container [2021-04-29 00:16:35,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:16:35" (3/3) ... [2021-04-29 00:16:35,606 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_tso.oepc.i [2021-04-29 00:16:35,614 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:16:35,620 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:16:35,621 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:16:35,682 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,683 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,683 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,683 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,684 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,684 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,684 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,685 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,685 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,685 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,686 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,686 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,687 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,687 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,687 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,688 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,688 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,688 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,688 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,688 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,689 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,689 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,689 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,690 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,691 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,692 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,693 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,694 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,694 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,694 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,695 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,696 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,697 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,701 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,701 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,701 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,701 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,711 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,712 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,712 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,712 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,715 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,715 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,716 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,716 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:16:35,718 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:16:35,743 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 00:16:35,768 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:16:35,768 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:16:35,769 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:16:35,769 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:16:35,769 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:16:35,769 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:16:35,769 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:16:35,769 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:16:35,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-04-29 00:16:35,844 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-04-29 00:16:35,847 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:16:35,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-04-29 00:16:35,851 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 161 flow [2021-04-29 00:16:35,865 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2021-04-29 00:16:35,867 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:16:35,881 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 125 flow [2021-04-29 00:16:35,885 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 125 flow [2021-04-29 00:16:35,887 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 125 flow [2021-04-29 00:16:35,910 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-04-29 00:16:35,910 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:16:35,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 58 events. 1/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-04-29 00:16:35,914 INFO L146 LiptonReduction]: Number of co-enabled transitions 804 [2021-04-29 00:16:40,427 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:16:40,574 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:16:40,984 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:16:41,142 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:16:41,301 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:16:41,468 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:16:41,764 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:16:42,132 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:16:42,311 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:16:42,496 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:16:42,704 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:16:42,917 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:16:43,143 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:16:43,349 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:16:43,545 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:16:43,756 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:16:43,947 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:16:44,134 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:16:44,313 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:16:44,518 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:16:44,741 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:16:44,956 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:16:45,181 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:16:45,475 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 00:16:45,768 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 00:16:46,058 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-29 00:16:46,344 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-29 00:16:46,744 INFO L158 LiptonReduction]: Checked pairs total: 6237 [2021-04-29 00:16:46,744 INFO L160 LiptonReduction]: Total number of compositions: 94 [2021-04-29 00:16:46,748 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10882 [2021-04-29 00:16:46,772 INFO L129 PetriNetUnfolder]: 0/62 cut-off events. [2021-04-29 00:16:46,772 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:16:46,773 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:16:46,774 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:16:46,774 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:16:46,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:16:46,781 INFO L82 PathProgramCache]: Analyzing trace with hash 300360819, now seen corresponding path program 1 times [2021-04-29 00:16:46,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:16:46,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838849015] [2021-04-29 00:16:46,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:16:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:16:47,152 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:16:47,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:16:47,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:16:47,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838849015] [2021-04-29 00:16:47,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:16:47,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:16:47,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756819555] [2021-04-29 00:16:47,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:16:47,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:16:47,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:16:47,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:16:47,205 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 167 [2021-04-29 00:16:47,210 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 69 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:47,210 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:16:47,210 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 167 [2021-04-29 00:16:47,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:16:47,358 INFO L129 PetriNetUnfolder]: 84/344 cut-off events. [2021-04-29 00:16:47,358 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:16:47,360 INFO L84 FinitePrefix]: Finished finitePrefix Result has 537 conditions, 344 events. 84/344 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 2561 event pairs, 43 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 492. Up to 127 conditions per place. [2021-04-29 00:16:47,363 INFO L132 encePairwiseOnDemand]: 149/167 looper letters, 4 selfloop transitions, 5 changer transitions 38/77 dead transitions. [2021-04-29 00:16:47,363 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 77 transitions, 227 flow [2021-04-29 00:16:47,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:16:47,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:16:47,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions. [2021-04-29 00:16:47,383 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7145708582834331 [2021-04-29 00:16:47,384 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 358 transitions. [2021-04-29 00:16:47,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 358 transitions. [2021-04-29 00:16:47,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:16:47,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 358 transitions. [2021-04-29 00:16:47,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:47,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:47,406 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:47,409 INFO L185 Difference]: Start difference. First operand has 79 places, 69 transitions, 147 flow. Second operand 3 states and 358 transitions. [2021-04-29 00:16:47,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 77 transitions, 227 flow [2021-04-29 00:16:47,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 77 transitions, 224 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:16:47,420 INFO L241 Difference]: Finished difference. Result has 79 places, 39 transitions, 107 flow [2021-04-29 00:16:47,423 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=107, PETRI_PLACES=79, PETRI_TRANSITIONS=39} [2021-04-29 00:16:47,425 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, 0 predicate places. [2021-04-29 00:16:47,425 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:16:47,425 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 39 transitions, 107 flow [2021-04-29 00:16:47,426 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 39 transitions, 107 flow [2021-04-29 00:16:47,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 39 transitions, 107 flow [2021-04-29 00:16:47,458 INFO L129 PetriNetUnfolder]: 11/86 cut-off events. [2021-04-29 00:16:47,458 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 00:16:47,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 86 events. 11/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 410 event pairs, 7 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 125. Up to 26 conditions per place. [2021-04-29 00:16:47,461 INFO L146 LiptonReduction]: Number of co-enabled transitions 794 [2021-04-29 00:16:47,473 INFO L158 LiptonReduction]: Checked pairs total: 200 [2021-04-29 00:16:47,474 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:16:47,474 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 49 [2021-04-29 00:16:47,476 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 107 flow [2021-04-29 00:16:47,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:47,477 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:16:47,477 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:16:47,477 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:16:47,477 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:16:47,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:16:47,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1508629814, now seen corresponding path program 1 times [2021-04-29 00:16:47,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:16:47,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821128393] [2021-04-29 00:16:47,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:16:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:16:47,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:16:47,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:16:47,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:16:47,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821128393] [2021-04-29 00:16:47,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:16:47,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:16:47,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026897301] [2021-04-29 00:16:47,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:16:47,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:16:47,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:16:47,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:16:47,648 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 167 [2021-04-29 00:16:47,650 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:47,650 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:16:47,650 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 167 [2021-04-29 00:16:47,651 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:16:47,677 INFO L129 PetriNetUnfolder]: 8/78 cut-off events. [2021-04-29 00:16:47,678 INFO L130 PetriNetUnfolder]: For 13/16 co-relation queries the response was YES. [2021-04-29 00:16:47,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 78 events. 8/78 cut-off events. For 13/16 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 357 event pairs, 4 based on Foata normal form. 1/46 useless extension candidates. Maximal degree in co-relation 120. Up to 21 conditions per place. [2021-04-29 00:16:47,683 INFO L132 encePairwiseOnDemand]: 164/167 looper letters, 1 selfloop transitions, 3 changer transitions 1/39 dead transitions. [2021-04-29 00:16:47,683 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 39 transitions, 115 flow [2021-04-29 00:16:47,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:16:47,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:16:47,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2021-04-29 00:16:47,692 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7445109780439122 [2021-04-29 00:16:47,693 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2021-04-29 00:16:47,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2021-04-29 00:16:47,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:16:47,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2021-04-29 00:16:47,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:47,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:47,703 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:47,703 INFO L185 Difference]: Start difference. First operand has 46 places, 39 transitions, 107 flow. Second operand 3 states and 373 transitions. [2021-04-29 00:16:47,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 39 transitions, 115 flow [2021-04-29 00:16:47,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 39 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:16:47,705 INFO L241 Difference]: Finished difference. Result has 48 places, 38 transitions, 111 flow [2021-04-29 00:16:47,706 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=111, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2021-04-29 00:16:47,707 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -31 predicate places. [2021-04-29 00:16:47,707 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:16:47,707 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 38 transitions, 111 flow [2021-04-29 00:16:47,709 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 38 transitions, 111 flow [2021-04-29 00:16:47,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 38 transitions, 111 flow [2021-04-29 00:16:47,719 INFO L129 PetriNetUnfolder]: 8/83 cut-off events. [2021-04-29 00:16:47,720 INFO L130 PetriNetUnfolder]: For 8/10 co-relation queries the response was YES. [2021-04-29 00:16:47,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 83 events. 8/83 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 406 event pairs, 4 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 122. Up to 21 conditions per place. [2021-04-29 00:16:47,722 INFO L146 LiptonReduction]: Number of co-enabled transitions 746 [2021-04-29 00:16:47,740 INFO L158 LiptonReduction]: Checked pairs total: 193 [2021-04-29 00:16:47,740 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:16:47,741 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-04-29 00:16:47,746 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 111 flow [2021-04-29 00:16:47,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:47,747 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:16:47,747 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:16:47,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:16:47,750 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:16:47,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:16:47,751 INFO L82 PathProgramCache]: Analyzing trace with hash 721249491, now seen corresponding path program 1 times [2021-04-29 00:16:47,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:16:47,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490965936] [2021-04-29 00:16:47,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:16:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:16:47,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:16:47,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:16:47,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:16:47,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490965936] [2021-04-29 00:16:47,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:16:47,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:16:47,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715239433] [2021-04-29 00:16:47,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:16:47,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:16:47,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:16:47,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:16:47,855 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 167 [2021-04-29 00:16:47,856 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 111 flow. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:47,857 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:16:47,857 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 167 [2021-04-29 00:16:47,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:16:47,877 INFO L129 PetriNetUnfolder]: 6/70 cut-off events. [2021-04-29 00:16:47,878 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-04-29 00:16:47,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 70 events. 6/70 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 297 event pairs, 3 based on Foata normal form. 1/40 useless extension candidates. Maximal degree in co-relation 116. Up to 18 conditions per place. [2021-04-29 00:16:47,879 INFO L132 encePairwiseOnDemand]: 163/167 looper letters, 3 selfloop transitions, 4 changer transitions 1/40 dead transitions. [2021-04-29 00:16:47,879 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 40 transitions, 133 flow [2021-04-29 00:16:47,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:16:47,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:16:47,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2021-04-29 00:16:47,881 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7864271457085829 [2021-04-29 00:16:47,882 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2021-04-29 00:16:47,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2021-04-29 00:16:47,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:16:47,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2021-04-29 00:16:47,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:47,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:47,887 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:47,887 INFO L185 Difference]: Start difference. First operand has 47 places, 38 transitions, 111 flow. Second operand 3 states and 394 transitions. [2021-04-29 00:16:47,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 40 transitions, 133 flow [2021-04-29 00:16:47,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 40 transitions, 127 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:16:47,890 INFO L241 Difference]: Finished difference. Result has 48 places, 39 transitions, 129 flow [2021-04-29 00:16:47,890 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=48, PETRI_TRANSITIONS=39} [2021-04-29 00:16:47,890 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -31 predicate places. [2021-04-29 00:16:47,891 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:16:47,891 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 39 transitions, 129 flow [2021-04-29 00:16:47,891 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 39 transitions, 129 flow [2021-04-29 00:16:47,892 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 39 transitions, 129 flow [2021-04-29 00:16:47,902 INFO L129 PetriNetUnfolder]: 6/75 cut-off events. [2021-04-29 00:16:47,902 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-04-29 00:16:47,903 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 75 events. 6/75 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 338 event pairs, 2 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 121. Up to 18 conditions per place. [2021-04-29 00:16:47,905 INFO L146 LiptonReduction]: Number of co-enabled transitions 760 [2021-04-29 00:16:47,915 INFO L158 LiptonReduction]: Checked pairs total: 200 [2021-04-29 00:16:47,916 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:16:47,916 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-04-29 00:16:47,917 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 129 flow [2021-04-29 00:16:47,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:47,918 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:16:47,918 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:16:47,919 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:16:47,919 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:16:47,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:16:47,920 INFO L82 PathProgramCache]: Analyzing trace with hash 883887786, now seen corresponding path program 1 times [2021-04-29 00:16:47,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:16:47,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264224556] [2021-04-29 00:16:47,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:16:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:16:47,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:16:47,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:16:47,971 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:16:47,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:16:47,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:16:47,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264224556] [2021-04-29 00:16:47,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:16:47,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:16:47,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873693101] [2021-04-29 00:16:47,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:16:47,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:16:47,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:16:47,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:16:47,986 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 167 [2021-04-29 00:16:47,987 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:47,987 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:16:47,987 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 167 [2021-04-29 00:16:47,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:16:48,064 INFO L129 PetriNetUnfolder]: 33/156 cut-off events. [2021-04-29 00:16:48,065 INFO L130 PetriNetUnfolder]: For 71/102 co-relation queries the response was YES. [2021-04-29 00:16:48,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 156 events. 33/156 cut-off events. For 71/102 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 853 event pairs, 1 based on Foata normal form. 12/112 useless extension candidates. Maximal degree in co-relation 333. Up to 38 conditions per place. [2021-04-29 00:16:48,068 INFO L132 encePairwiseOnDemand]: 160/167 looper letters, 11 selfloop transitions, 18 changer transitions 0/56 dead transitions. [2021-04-29 00:16:48,069 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 56 transitions, 282 flow [2021-04-29 00:16:48,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:16:48,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:16:48,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 542 transitions. [2021-04-29 00:16:48,072 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6491017964071857 [2021-04-29 00:16:48,072 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 542 transitions. [2021-04-29 00:16:48,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 542 transitions. [2021-04-29 00:16:48,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:16:48,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 542 transitions. [2021-04-29 00:16:48,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:48,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:48,080 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:48,080 INFO L185 Difference]: Start difference. First operand has 47 places, 39 transitions, 129 flow. Second operand 5 states and 542 transitions. [2021-04-29 00:16:48,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 56 transitions, 282 flow [2021-04-29 00:16:48,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 56 transitions, 273 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:16:48,087 INFO L241 Difference]: Finished difference. Result has 54 places, 52 transitions, 283 flow [2021-04-29 00:16:48,087 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=283, PETRI_PLACES=54, PETRI_TRANSITIONS=52} [2021-04-29 00:16:48,088 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -25 predicate places. [2021-04-29 00:16:48,088 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:16:48,088 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 52 transitions, 283 flow [2021-04-29 00:16:48,088 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 52 transitions, 283 flow [2021-04-29 00:16:48,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 52 transitions, 283 flow [2021-04-29 00:16:48,108 INFO L129 PetriNetUnfolder]: 24/144 cut-off events. [2021-04-29 00:16:48,108 INFO L130 PetriNetUnfolder]: For 105/119 co-relation queries the response was YES. [2021-04-29 00:16:48,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 144 events. 24/144 cut-off events. For 105/119 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 830 event pairs, 4 based on Foata normal form. 2/92 useless extension candidates. Maximal degree in co-relation 357. Up to 39 conditions per place. [2021-04-29 00:16:48,113 INFO L146 LiptonReduction]: Number of co-enabled transitions 1138 [2021-04-29 00:16:48,122 INFO L158 LiptonReduction]: Checked pairs total: 33 [2021-04-29 00:16:48,122 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:16:48,123 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-04-29 00:16:48,129 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 52 transitions, 283 flow [2021-04-29 00:16:48,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:48,130 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:16:48,130 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:16:48,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:16:48,130 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:16:48,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:16:48,134 INFO L82 PathProgramCache]: Analyzing trace with hash 882965226, now seen corresponding path program 2 times [2021-04-29 00:16:48,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:16:48,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171520570] [2021-04-29 00:16:48,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:16:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:16:48,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:16:48,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:16:48,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:16:48,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:16:48,243 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:16:48,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:16:48,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:16:48,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171520570] [2021-04-29 00:16:48,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:16:48,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:16:48,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375058531] [2021-04-29 00:16:48,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:16:48,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:16:48,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:16:48,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:16:48,261 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 167 [2021-04-29 00:16:48,262 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 52 transitions, 283 flow. Second operand has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 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) [2021-04-29 00:16:48,262 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:16:48,262 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 167 [2021-04-29 00:16:48,263 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:16:48,322 INFO L129 PetriNetUnfolder]: 23/159 cut-off events. [2021-04-29 00:16:48,322 INFO L130 PetriNetUnfolder]: For 276/335 co-relation queries the response was YES. [2021-04-29 00:16:48,323 INFO L84 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 159 events. 23/159 cut-off events. For 276/335 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 995 event pairs, 1 based on Foata normal form. 14/109 useless extension candidates. Maximal degree in co-relation 427. Up to 35 conditions per place. [2021-04-29 00:16:48,324 INFO L132 encePairwiseOnDemand]: 160/167 looper letters, 7 selfloop transitions, 9 changer transitions 17/59 dead transitions. [2021-04-29 00:16:48,324 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 59 transitions, 409 flow [2021-04-29 00:16:48,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:16:48,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:16:48,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 538 transitions. [2021-04-29 00:16:48,327 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.644311377245509 [2021-04-29 00:16:48,328 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 538 transitions. [2021-04-29 00:16:48,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 538 transitions. [2021-04-29 00:16:48,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:16:48,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 538 transitions. [2021-04-29 00:16:48,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.6) internal successors, (538), 5 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:48,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:48,334 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:48,334 INFO L185 Difference]: Start difference. First operand has 54 places, 52 transitions, 283 flow. Second operand 5 states and 538 transitions. [2021-04-29 00:16:48,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 59 transitions, 409 flow [2021-04-29 00:16:48,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 59 transitions, 407 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-04-29 00:16:48,340 INFO L241 Difference]: Finished difference. Result has 60 places, 40 transitions, 212 flow [2021-04-29 00:16:48,340 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=212, PETRI_PLACES=60, PETRI_TRANSITIONS=40} [2021-04-29 00:16:48,340 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -19 predicate places. [2021-04-29 00:16:48,341 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:16:48,341 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 40 transitions, 212 flow [2021-04-29 00:16:48,341 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 40 transitions, 212 flow [2021-04-29 00:16:48,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 40 transitions, 212 flow [2021-04-29 00:16:48,351 INFO L129 PetriNetUnfolder]: 7/73 cut-off events. [2021-04-29 00:16:48,352 INFO L130 PetriNetUnfolder]: For 100/105 co-relation queries the response was YES. [2021-04-29 00:16:48,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 73 events. 7/73 cut-off events. For 100/105 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 323 event pairs, 3 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 191. Up to 19 conditions per place. [2021-04-29 00:16:48,354 INFO L146 LiptonReduction]: Number of co-enabled transitions 732 [2021-04-29 00:16:48,359 INFO L158 LiptonReduction]: Checked pairs total: 21 [2021-04-29 00:16:48,360 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:16:48,360 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-04-29 00:16:48,361 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 40 transitions, 212 flow [2021-04-29 00:16:48,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 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) [2021-04-29 00:16:48,362 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:16:48,362 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:16:48,363 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:16:48,363 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:16:48,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:16:48,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1905649158, now seen corresponding path program 1 times [2021-04-29 00:16:48,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:16:48,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320543280] [2021-04-29 00:16:48,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:16:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:16:48,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:16:48,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:16:48,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:16:48,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:16:48,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:16:48,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320543280] [2021-04-29 00:16:48,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:16:48,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:16:48,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416457309] [2021-04-29 00:16:48,418 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:16:48,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:16:48,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:16:48,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:16:48,420 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 167 [2021-04-29 00:16:48,421 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 40 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:48,421 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:16:48,421 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 167 [2021-04-29 00:16:48,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:16:49,432 INFO L129 PetriNetUnfolder]: 4618/7364 cut-off events. [2021-04-29 00:16:49,432 INFO L130 PetriNetUnfolder]: For 5544/6163 co-relation queries the response was YES. [2021-04-29 00:16:49,462 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15585 conditions, 7364 events. 4618/7364 cut-off events. For 5544/6163 co-relation queries the response was YES. Maximal size of possible extension queue 1551. Compared 58648 event pairs, 2131 based on Foata normal form. 99/2015 useless extension candidates. Maximal degree in co-relation 15563. Up to 4834 conditions per place. [2021-04-29 00:16:49,485 INFO L132 encePairwiseOnDemand]: 149/167 looper letters, 29 selfloop transitions, 27 changer transitions 0/75 dead transitions. [2021-04-29 00:16:49,485 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 75 transitions, 394 flow [2021-04-29 00:16:49,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:16:49,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:16:49,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 571 transitions. [2021-04-29 00:16:49,489 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6838323353293413 [2021-04-29 00:16:49,489 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 571 transitions. [2021-04-29 00:16:49,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 571 transitions. [2021-04-29 00:16:49,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:16:49,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 571 transitions. [2021-04-29 00:16:49,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.2) internal successors, (571), 5 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:49,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:49,498 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:49,499 INFO L185 Difference]: Start difference. First operand has 59 places, 40 transitions, 212 flow. Second operand 5 states and 571 transitions. [2021-04-29 00:16:49,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 75 transitions, 394 flow [2021-04-29 00:16:49,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 75 transitions, 333 flow, removed 8 selfloop flow, removed 9 redundant places. [2021-04-29 00:16:49,511 INFO L241 Difference]: Finished difference. Result has 57 places, 65 transitions, 354 flow [2021-04-29 00:16:49,511 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=354, PETRI_PLACES=57, PETRI_TRANSITIONS=65} [2021-04-29 00:16:49,512 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -22 predicate places. [2021-04-29 00:16:49,512 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:16:49,512 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 65 transitions, 354 flow [2021-04-29 00:16:49,512 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 65 transitions, 354 flow [2021-04-29 00:16:49,513 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 65 transitions, 354 flow [2021-04-29 00:16:50,238 INFO L129 PetriNetUnfolder]: 4020/6549 cut-off events. [2021-04-29 00:16:50,239 INFO L130 PetriNetUnfolder]: For 2181/4722 co-relation queries the response was YES. [2021-04-29 00:16:50,264 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18714 conditions, 6549 events. 4020/6549 cut-off events. For 2181/4722 co-relation queries the response was YES. Maximal size of possible extension queue 1431. Compared 54481 event pairs, 1980 based on Foata normal form. 2/1815 useless extension candidates. Maximal degree in co-relation 18698. Up to 6197 conditions per place. [2021-04-29 00:16:50,347 INFO L146 LiptonReduction]: Number of co-enabled transitions 876 [2021-04-29 00:16:50,365 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:16:50,365 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:16:50,365 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 853 [2021-04-29 00:16:50,370 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 65 transitions, 354 flow [2021-04-29 00:16:50,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:50,372 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:16:50,372 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:16:50,373 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:16:50,373 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:16:50,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:16:50,374 INFO L82 PathProgramCache]: Analyzing trace with hash -2127930386, now seen corresponding path program 1 times [2021-04-29 00:16:50,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:16:50,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47178325] [2021-04-29 00:16:50,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:16:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:16:50,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:16:50,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:16:50,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:16:50,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:16:50,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:16:50,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:16:50,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:16:50,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47178325] [2021-04-29 00:16:50,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:16:50,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:16:50,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926419864] [2021-04-29 00:16:50,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:16:50,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:16:50,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:16:50,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:16:50,489 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 167 [2021-04-29 00:16:50,490 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 65 transitions, 354 flow. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:50,490 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:16:50,490 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 167 [2021-04-29 00:16:50,490 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:16:51,790 INFO L129 PetriNetUnfolder]: 4390/7784 cut-off events. [2021-04-29 00:16:51,790 INFO L130 PetriNetUnfolder]: For 4305/15150 co-relation queries the response was YES. [2021-04-29 00:16:51,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29714 conditions, 7784 events. 4390/7784 cut-off events. For 4305/15150 co-relation queries the response was YES. Maximal size of possible extension queue 2061. Compared 71606 event pairs, 460 based on Foata normal form. 144/2532 useless extension candidates. Maximal degree in co-relation 29696. Up to 7202 conditions per place. [2021-04-29 00:16:51,845 INFO L132 encePairwiseOnDemand]: 149/167 looper letters, 21 selfloop transitions, 52 changer transitions 9/101 dead transitions. [2021-04-29 00:16:51,845 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 101 transitions, 713 flow [2021-04-29 00:16:51,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:16:51,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:16:51,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 801 transitions. [2021-04-29 00:16:51,850 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6852010265183918 [2021-04-29 00:16:51,850 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 801 transitions. [2021-04-29 00:16:51,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 801 transitions. [2021-04-29 00:16:51,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:16:51,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 801 transitions. [2021-04-29 00:16:51,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 114.42857142857143) internal successors, (801), 7 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:51,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 167.0) internal successors, (1336), 8 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:51,859 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 167.0) internal successors, (1336), 8 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:51,859 INFO L185 Difference]: Start difference. First operand has 57 places, 65 transitions, 354 flow. Second operand 7 states and 801 transitions. [2021-04-29 00:16:51,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 101 transitions, 713 flow [2021-04-29 00:16:51,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 101 transitions, 713 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:16:51,912 INFO L241 Difference]: Finished difference. Result has 66 places, 90 transitions, 693 flow [2021-04-29 00:16:51,912 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=693, PETRI_PLACES=66, PETRI_TRANSITIONS=90} [2021-04-29 00:16:51,912 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -13 predicate places. [2021-04-29 00:16:51,912 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:16:51,912 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 90 transitions, 693 flow [2021-04-29 00:16:51,913 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 90 transitions, 693 flow [2021-04-29 00:16:51,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 90 transitions, 693 flow [2021-04-29 00:16:52,550 INFO L129 PetriNetUnfolder]: 2602/5199 cut-off events. [2021-04-29 00:16:52,550 INFO L130 PetriNetUnfolder]: For 8637/19689 co-relation queries the response was YES. [2021-04-29 00:16:52,583 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21930 conditions, 5199 events. 2602/5199 cut-off events. For 8637/19689 co-relation queries the response was YES. Maximal size of possible extension queue 1374. Compared 51997 event pairs, 459 based on Foata normal form. 6/1448 useless extension candidates. Maximal degree in co-relation 21909. Up to 4766 conditions per place. [2021-04-29 00:16:52,669 INFO L146 LiptonReduction]: Number of co-enabled transitions 1022 [2021-04-29 00:16:52,697 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:16:52,697 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:16:52,698 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 786 [2021-04-29 00:16:52,699 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 90 transitions, 693 flow [2021-04-29 00:16:52,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:52,700 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:16:52,700 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:16:52,700 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:16:52,700 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:16:52,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:16:52,701 INFO L82 PathProgramCache]: Analyzing trace with hash -606371153, now seen corresponding path program 1 times [2021-04-29 00:16:52,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:16:52,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307385713] [2021-04-29 00:16:52,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:16:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:16:52,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:16:52,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:16:52,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:16:52,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:16:52,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:16:52,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:16:52,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:16:52,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307385713] [2021-04-29 00:16:52,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:16:52,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:16:52,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118039472] [2021-04-29 00:16:52,787 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:16:52,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:16:52,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:16:52,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:16:52,790 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 167 [2021-04-29 00:16:52,791 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 90 transitions, 693 flow. Second operand has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:52,791 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:16:52,791 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 167 [2021-04-29 00:16:52,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:16:53,747 INFO L129 PetriNetUnfolder]: 3628/7200 cut-off events. [2021-04-29 00:16:53,747 INFO L130 PetriNetUnfolder]: For 13914/27814 co-relation queries the response was YES. [2021-04-29 00:16:53,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30027 conditions, 7200 events. 3628/7200 cut-off events. For 13914/27814 co-relation queries the response was YES. Maximal size of possible extension queue 2046. Compared 73323 event pairs, 648 based on Foata normal form. 80/2016 useless extension candidates. Maximal degree in co-relation 30004. Up to 6692 conditions per place. [2021-04-29 00:16:53,798 INFO L132 encePairwiseOnDemand]: 164/167 looper letters, 5 selfloop transitions, 3 changer transitions 47/92 dead transitions. [2021-04-29 00:16:53,798 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 92 transitions, 723 flow [2021-04-29 00:16:53,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:16:53,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:16:53,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 460 transitions. [2021-04-29 00:16:53,801 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.688622754491018 [2021-04-29 00:16:53,801 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 460 transitions. [2021-04-29 00:16:53,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 460 transitions. [2021-04-29 00:16:53,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:16:53,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 460 transitions. [2021-04-29 00:16:53,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:53,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:53,805 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:53,806 INFO L185 Difference]: Start difference. First operand has 66 places, 90 transitions, 693 flow. Second operand 4 states and 460 transitions. [2021-04-29 00:16:53,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 92 transitions, 723 flow [2021-04-29 00:16:54,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 92 transitions, 594 flow, removed 42 selfloop flow, removed 3 redundant places. [2021-04-29 00:16:54,370 INFO L241 Difference]: Finished difference. Result has 68 places, 45 transitions, 276 flow [2021-04-29 00:16:54,371 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=276, PETRI_PLACES=68, PETRI_TRANSITIONS=45} [2021-04-29 00:16:54,371 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -11 predicate places. [2021-04-29 00:16:54,371 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:16:54,371 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 45 transitions, 276 flow [2021-04-29 00:16:54,372 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 45 transitions, 276 flow [2021-04-29 00:16:54,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 45 transitions, 276 flow [2021-04-29 00:16:54,452 INFO L129 PetriNetUnfolder]: 343/851 cut-off events. [2021-04-29 00:16:54,453 INFO L130 PetriNetUnfolder]: For 1306/1448 co-relation queries the response was YES. [2021-04-29 00:16:54,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3075 conditions, 851 events. 343/851 cut-off events. For 1306/1448 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 6989 event pairs, 82 based on Foata normal form. 2/404 useless extension candidates. Maximal degree in co-relation 3053. Up to 592 conditions per place. [2021-04-29 00:16:54,467 INFO L146 LiptonReduction]: Number of co-enabled transitions 414 [2021-04-29 00:16:54,473 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:16:54,473 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:16:54,474 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 103 [2021-04-29 00:16:54,475 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 45 transitions, 276 flow [2021-04-29 00:16:54,475 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:54,476 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:16:54,476 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:16:54,476 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 00:16:54,476 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:16:54,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:16:54,477 INFO L82 PathProgramCache]: Analyzing trace with hash 983933328, now seen corresponding path program 1 times [2021-04-29 00:16:54,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:16:54,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064311378] [2021-04-29 00:16:54,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:16:54,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:16:54,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:16:54,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:16:54,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:16:54,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:16:54,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:16:54,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:16:54,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:16:54,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:16:54,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:16:54,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064311378] [2021-04-29 00:16:54,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:16:54,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:16:54,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789274411] [2021-04-29 00:16:54,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:16:54,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:16:54,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:16:54,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:16:54,582 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 167 [2021-04-29 00:16:54,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 276 flow. Second operand has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:54,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:16:54,584 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 167 [2021-04-29 00:16:54,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:16:54,861 INFO L129 PetriNetUnfolder]: 655/1367 cut-off events. [2021-04-29 00:16:54,862 INFO L130 PetriNetUnfolder]: For 1561/2921 co-relation queries the response was YES. [2021-04-29 00:16:54,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5523 conditions, 1367 events. 655/1367 cut-off events. For 1561/2921 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 10903 event pairs, 1 based on Foata normal form. 44/705 useless extension candidates. Maximal degree in co-relation 5507. Up to 883 conditions per place. [2021-04-29 00:16:54,870 INFO L132 encePairwiseOnDemand]: 155/167 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2021-04-29 00:16:54,870 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 54 transitions, 392 flow [2021-04-29 00:16:54,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:16:54,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:16:54,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 759 transitions. [2021-04-29 00:16:54,875 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.649272882805817 [2021-04-29 00:16:54,876 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 759 transitions. [2021-04-29 00:16:54,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 759 transitions. [2021-04-29 00:16:54,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:16:54,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 759 transitions. [2021-04-29 00:16:54,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 108.42857142857143) internal successors, (759), 7 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:54,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 167.0) internal successors, (1336), 8 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:54,885 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 167.0) internal successors, (1336), 8 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:54,885 INFO L185 Difference]: Start difference. First operand has 56 places, 45 transitions, 276 flow. Second operand 7 states and 759 transitions. [2021-04-29 00:16:54,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 54 transitions, 392 flow [2021-04-29 00:16:54,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 54 transitions, 356 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-04-29 00:16:54,890 INFO L241 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2021-04-29 00:16:54,890 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2021-04-29 00:16:54,890 INFO L343 CegarLoopForPetriNet]: 79 programPoint places, -23 predicate places. [2021-04-29 00:16:54,890 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:16:54,891 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 0 transitions, 0 flow [2021-04-29 00:16:54,891 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 0 transitions, 0 flow [2021-04-29 00:16:54,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:16:54,891 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:16:54,891 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:16:54,892 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. [2021-04-29 00:16:54,892 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:16:54,892 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:16:54,892 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:16:54,892 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:16:54,893 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:16:54,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:54,894 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 00:16:54,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:16:54 BasicIcfg [2021-04-29 00:16:54,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:16:54,901 INFO L168 Benchmark]: Toolchain (without parser) took 20968.76 ms. Allocated memory was 302.0 MB in the beginning and 545.3 MB in the end (delta: 243.3 MB). Free memory was 275.4 MB in the beginning and 334.5 MB in the end (delta: -59.1 MB). Peak memory consumption was 185.8 MB. Max. memory is 16.0 GB. [2021-04-29 00:16:54,901 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:16:54,902 INFO L168 Benchmark]: CACSL2BoogieTranslator took 726.96 ms. Allocated memory is still 302.0 MB. Free memory was 272.3 MB in the beginning and 268.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. [2021-04-29 00:16:54,903 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.81 ms. Allocated memory is still 302.0 MB. Free memory was 268.2 MB in the beginning and 266.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:16:54,903 INFO L168 Benchmark]: Boogie Preprocessor took 30.00 ms. Allocated memory is still 302.0 MB. Free memory was 266.1 MB in the beginning and 265.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:16:54,904 INFO L168 Benchmark]: RCFGBuilder took 809.67 ms. Allocated memory is still 302.0 MB. Free memory was 265.1 MB in the beginning and 243.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:16:54,904 INFO L168 Benchmark]: TraceAbstraction took 19302.09 ms. Allocated memory was 302.0 MB in the beginning and 545.3 MB in the end (delta: 243.3 MB). Free memory was 242.0 MB in the beginning and 334.5 MB in the end (delta: -92.5 MB). Peak memory consumption was 152.9 MB. Max. memory is 16.0 GB. [2021-04-29 00:16:54,913 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 726.96 ms. Allocated memory is still 302.0 MB. Free memory was 272.3 MB in the beginning and 268.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 50.81 ms. Allocated memory is still 302.0 MB. Free memory was 268.2 MB in the beginning and 266.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.00 ms. Allocated memory is still 302.0 MB. Free memory was 266.1 MB in the beginning and 265.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 809.67 ms. Allocated memory is still 302.0 MB. Free memory was 265.1 MB in the beginning and 243.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 19302.09 ms. Allocated memory was 302.0 MB in the beginning and 545.3 MB in the end (delta: 243.3 MB). Free memory was 242.0 MB in the beginning and 334.5 MB in the end (delta: -92.5 MB). Peak memory consumption was 152.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10859.3ms, 67 PlacesBefore, 79 PlacesAfterwards, 58 TransitionsBefore, 69 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 94 TotalNumberOfCompositions, 6237 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2177, positive: 1983, positive conditional: 1983, positive unconditional: 0, negative: 194, negative conditional: 194, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 991, positive: 926, positive conditional: 0, positive unconditional: 926, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 991, positive: 926, positive conditional: 0, positive unconditional: 926, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 991, positive: 901, positive conditional: 0, positive unconditional: 901, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 90, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 476, positive: 125, positive conditional: 0, positive unconditional: 125, negative: 351, negative conditional: 0, negative unconditional: 351, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2177, positive: 1057, positive conditional: 1057, positive unconditional: 0, negative: 129, negative conditional: 129, negative unconditional: 0, unknown: 991, unknown conditional: 991, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 972, Positive cache size: 907, Positive conditional cache size: 907, Positive unconditional cache size: 0, Negative cache size: 65, Negative conditional cache size: 65, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.2ms, 79 PlacesBefore, 46 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 794 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 200 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 4, positive unconditional: 4, 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: 9, positive: 8, positive conditional: 4, positive unconditional: 4, 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: 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: 0, negative unconditional: 1, 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: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 40, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 981, Positive cache size: 915, Positive conditional cache size: 915, Positive unconditional cache size: 0, Negative cache size: 66, Negative conditional cache size: 66, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.1ms, 48 PlacesBefore, 47 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 746 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 193 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 34, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 3, positive unconditional: 4, 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: 8, positive: 7, positive conditional: 3, positive unconditional: 4, 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: 8, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 11, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 34, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 989, Positive cache size: 922, Positive conditional cache size: 922, Positive unconditional cache size: 0, Negative cache size: 67, Negative conditional cache size: 67, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.4ms, 48 PlacesBefore, 47 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 760 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 200 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 50, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 16, positive conditional: 9, positive unconditional: 7, 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: 17, positive: 16, positive conditional: 9, positive unconditional: 7, 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: 17, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 50, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1006, Positive cache size: 938, Positive conditional cache size: 938, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.1ms, 54 PlacesBefore, 54 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 1138 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 33 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , 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: 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] , Statistics on independence cache: Total cache size (in pairs): 1006, Positive cache size: 938, Positive conditional cache size: 938, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.6ms, 60 PlacesBefore, 59 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 21 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1008, Positive cache size: 940, Positive conditional cache size: 940, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 852.7ms, 57 PlacesBefore, 57 PlacesAfterwards, 65 TransitionsBefore, 65 TransitionsAfterwards, 876 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): 1008, Positive cache size: 940, Positive conditional cache size: 940, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 784.7ms, 66 PlacesBefore, 66 PlacesAfterwards, 90 TransitionsBefore, 90 TransitionsAfterwards, 1022 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): 1008, Positive cache size: 940, Positive conditional cache size: 940, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 101.6ms, 68 PlacesBefore, 56 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 414 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): 1008, Positive cache size: 940, Positive conditional cache size: 940, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2ms, 56 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): 1008, Positive cache size: 940, Positive conditional cache size: 940, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, 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 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 14.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 19132.8ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 4926.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10988.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 71 SDtfs, 64 SDslu, 25 SDs, 0 SdLazy, 308 SolverSat, 94 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 384.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 149.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=693occurred in iteration=7, InterpolantAutomatonStates: 42, 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: 33.8ms SsaConstructionTime, 271.7ms SatisfiabilityAnalysisTime, 666.2ms InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 374 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...