/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 14:47:42,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 14:47:42,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 14:47:42,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 14:47:42,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 14:47:42,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 14:47:42,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 14:47:42,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 14:47:42,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 14:47:42,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 14:47:42,653 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 14:47:42,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 14:47:42,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 14:47:42,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 14:47:42,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 14:47:42,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 14:47:42,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 14:47:42,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 14:47:42,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 14:47:42,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 14:47:42,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 14:47:42,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 14:47:42,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 14:47:42,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 14:47:42,678 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 14:47:42,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 14:47:42,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 14:47:42,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 14:47:42,696 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-RepeatedSemanticLbe.epf [2021-03-25 14:47:42,732 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 14:47:42,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 14:47:42,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 14:47:42,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 14:47:42,737 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 14:47:42,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 14:47:42,737 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 14:47:42,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 14:47:42,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 14:47:42,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 14:47:42,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 14:47:42,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 14:47:42,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 14:47:42,739 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 14:47:42,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 14:47:42,739 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 14:47:42,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 14:47:42,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 14:47:42,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 14:47:42,740 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 14:47:42,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 14:47:42,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:47:42,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 14:47:42,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 14:47:42,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 14:47:42,740 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 14:47:42,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 14:47:42,741 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 14:47:42,741 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 14:47:42,741 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 14:47:43,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 14:47:43,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 14:47:43,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 14:47:43,078 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 14:47:43,079 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 14:47:43,080 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2021-03-25 14:47:43,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/519f1fd7f/bb4cb396532f46c4acac015690ba7eef/FLAG0fbb23c6e [2021-03-25 14:47:43,704 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 14:47:43,705 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.oepc.i [2021-03-25 14:47:43,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/519f1fd7f/bb4cb396532f46c4acac015690ba7eef/FLAG0fbb23c6e [2021-03-25 14:47:44,118 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/519f1fd7f/bb4cb396532f46c4acac015690ba7eef [2021-03-25 14:47:44,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 14:47:44,121 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 14:47:44,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 14:47:44,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 14:47:44,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 14:47:44,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:47:44" (1/1) ... [2021-03-25 14:47:44,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b7ea82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:44, skipping insertion in model container [2021-03-25 14:47:44,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:47:44" (1/1) ... [2021-03-25 14:47:44,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 14:47:44,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 14:47:44,293 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/safe001_tso.oepc.i[950,963] [2021-03-25 14:47:44,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:47:44,477 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 14:47:44,488 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/safe001_tso.oepc.i[950,963] [2021-03-25 14:47:44,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:47:44,577 INFO L208 MainTranslator]: Completed translation [2021-03-25 14:47:44,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:44 WrapperNode [2021-03-25 14:47:44,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 14:47:44,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 14:47:44,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 14:47:44,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 14:47:44,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:44" (1/1) ... [2021-03-25 14:47:44,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:44" (1/1) ... [2021-03-25 14:47:44,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 14:47:44,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 14:47:44,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 14:47:44,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 14:47:44,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:44" (1/1) ... [2021-03-25 14:47:44,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:44" (1/1) ... [2021-03-25 14:47:44,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:44" (1/1) ... [2021-03-25 14:47:44,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:44" (1/1) ... [2021-03-25 14:47:44,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:44" (1/1) ... [2021-03-25 14:47:44,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:44" (1/1) ... [2021-03-25 14:47:44,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:44" (1/1) ... [2021-03-25 14:47:44,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 14:47:44,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 14:47:44,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 14:47:44,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 14:47:44,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:47:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 14:47:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 14:47:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 14:47:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 14:47:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 14:47:44,719 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 14:47:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 14:47:44,719 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 14:47:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 14:47:44,719 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 14:47:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 14:47:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 14:47:44,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 14:47:44,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 14:47:44,721 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 14:47:45,123 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 14:47:45,123 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-25 14:47:45,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:47:45 BoogieIcfgContainer [2021-03-25 14:47:45,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 14:47:45,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 14:47:45,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 14:47:45,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 14:47:45,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 02:47:44" (1/3) ... [2021-03-25 14:47:45,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bcc64e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:47:45, skipping insertion in model container [2021-03-25 14:47:45,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:47:44" (2/3) ... [2021-03-25 14:47:45,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bcc64e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:47:45, skipping insertion in model container [2021-03-25 14:47:45,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:47:45" (3/3) ... [2021-03-25 14:47:45,134 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2021-03-25 14:47:45,139 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 14:47:45,142 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 14:47:45,143 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 14:47:45,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,179 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,180 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,180 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,180 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,181 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,181 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,181 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,181 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,181 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,181 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,181 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,184 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,184 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,184 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,184 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,185 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,185 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,185 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,185 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,186 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,190 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,190 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,197 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,197 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,197 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,198 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,203 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,203 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,203 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:47:45,206 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 14:47:45,219 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-25 14:47:45,242 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 14:47:45,242 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 14:47:45,243 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 14:47:45,243 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 14:47:45,243 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 14:47:45,243 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 14:47:45,243 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 14:47:45,243 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 14:47:45,252 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-03-25 14:47:45,293 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-03-25 14:47:45,293 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:47:45,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-25 14:47:45,297 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-03-25 14:47:45,300 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-03-25 14:47:45,302 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:47:45,311 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-25 14:47:45,314 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-25 14:47:45,315 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-03-25 14:47:45,333 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-03-25 14:47:45,333 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:47:45,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-25 14:47:45,336 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-25 14:47:46,788 INFO L154 LiptonReduction]: Checked pairs total: 996 [2021-03-25 14:47:46,788 INFO L156 LiptonReduction]: Total number of compositions: 37 [2021-03-25 14:47:46,790 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1489 [2021-03-25 14:47:46,805 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-25 14:47:46,806 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:47:46,806 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:47:46,807 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:47:46,807 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:47:46,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:47:46,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1399899973, now seen corresponding path program 1 times [2021-03-25 14:47:46,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:47:46,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207918719] [2021-03-25 14:47:46,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:47:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:47:47,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:47,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:47:47,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:47,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:47:47,119 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:47:47,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:47:47,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:47:47,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207918719] [2021-03-25 14:47:47,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:47:47,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:47:47,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710348556] [2021-03-25 14:47:47,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:47:47,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:47:47,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:47:47,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:47:47,158 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 111 [2021-03-25 14:47:47,162 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 53 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:47,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:47:47,167 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 111 [2021-03-25 14:47:47,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:47:47,234 INFO L129 PetriNetUnfolder]: 71/185 cut-off events. [2021-03-25 14:47:47,234 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:47:47,235 INFO L84 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 185 events. 71/185 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 821 event pairs, 20 based on Foata normal form. 10/186 useless extension candidates. Maximal degree in co-relation 319. Up to 64 conditions per place. [2021-03-25 14:47:47,237 INFO L132 encePairwiseOnDemand]: 103/111 looper letters, 11 selfloop transitions, 7 changer transitions 0/31 dead transitions. [2021-03-25 14:47:47,237 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 31 transitions, 107 flow [2021-03-25 14:47:47,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:47:47,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:47:47,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 364 transitions. [2021-03-25 14:47:47,248 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8198198198198198 [2021-03-25 14:47:47,249 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 364 transitions. [2021-03-25 14:47:47,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 364 transitions. [2021-03-25 14:47:47,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:47:47,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 364 transitions. [2021-03-25 14:47:47,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:47,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 111.0) internal successors, (555), 5 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:47,261 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 111.0) internal successors, (555), 5 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:47,263 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 53 flow. Second operand 4 states and 364 transitions. [2021-03-25 14:47:47,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 31 transitions, 107 flow [2021-03-25 14:47:47,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 31 transitions, 104 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 14:47:47,267 INFO L241 Difference]: Finished difference. Result has 35 places, 27 transitions, 102 flow [2021-03-25 14:47:47,269 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=102, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2021-03-25 14:47:47,272 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2021-03-25 14:47:47,272 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:47:47,272 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 27 transitions, 102 flow [2021-03-25 14:47:47,272 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 27 transitions, 102 flow [2021-03-25 14:47:47,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 27 transitions, 102 flow [2021-03-25 14:47:47,294 INFO L129 PetriNetUnfolder]: 70/178 cut-off events. [2021-03-25 14:47:47,294 INFO L130 PetriNetUnfolder]: For 48/58 co-relation queries the response was YES. [2021-03-25 14:47:47,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 178 events. 70/178 cut-off events. For 48/58 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 813 event pairs, 22 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 394. Up to 75 conditions per place. [2021-03-25 14:47:47,301 INFO L142 LiptonReduction]: Number of co-enabled transitions 196 [2021-03-25 14:47:47,766 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-25 14:47:47,995 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-25 14:47:48,088 INFO L154 LiptonReduction]: Checked pairs total: 139 [2021-03-25 14:47:48,089 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 14:47:48,089 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 817 [2021-03-25 14:47:48,091 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 92 flow [2021-03-25 14:47:48,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,091 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:47:48,092 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:47:48,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 14:47:48,092 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:47:48,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:47:48,093 INFO L82 PathProgramCache]: Analyzing trace with hash -447226827, now seen corresponding path program 1 times [2021-03-25 14:47:48,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:47:48,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469739506] [2021-03-25 14:47:48,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:47:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:47:48,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:48,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:47:48,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:48,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:47:48,168 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:47:48,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:47:48,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:47:48,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469739506] [2021-03-25 14:47:48,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:47:48,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:47:48,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105388788] [2021-03-25 14:47:48,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:47:48,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:47:48,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:47:48,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:47:48,181 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 116 [2021-03-25 14:47:48,182 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,182 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:47:48,182 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 116 [2021-03-25 14:47:48,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:47:48,225 INFO L129 PetriNetUnfolder]: 46/135 cut-off events. [2021-03-25 14:47:48,225 INFO L130 PetriNetUnfolder]: For 86/166 co-relation queries the response was YES. [2021-03-25 14:47:48,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 135 events. 46/135 cut-off events. For 86/166 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 573 event pairs, 5 based on Foata normal form. 6/137 useless extension candidates. Maximal degree in co-relation 391. Up to 51 conditions per place. [2021-03-25 14:47:48,227 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 14 selfloop transitions, 13 changer transitions 0/36 dead transitions. [2021-03-25 14:47:48,227 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 36 transitions, 216 flow [2021-03-25 14:47:48,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:47:48,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:47:48,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2021-03-25 14:47:48,237 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7952586206896551 [2021-03-25 14:47:48,237 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 369 transitions. [2021-03-25 14:47:48,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 369 transitions. [2021-03-25 14:47:48,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:47:48,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 369 transitions. [2021-03-25 14:47:48,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,243 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,243 INFO L185 Difference]: Start difference. First operand has 30 places, 22 transitions, 92 flow. Second operand 4 states and 369 transitions. [2021-03-25 14:47:48,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 36 transitions, 216 flow [2021-03-25 14:47:48,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 36 transitions, 212 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:47:48,247 INFO L241 Difference]: Finished difference. Result has 35 places, 32 transitions, 207 flow [2021-03-25 14:47:48,247 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=207, PETRI_PLACES=35, PETRI_TRANSITIONS=32} [2021-03-25 14:47:48,248 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2021-03-25 14:47:48,248 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:47:48,248 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 32 transitions, 207 flow [2021-03-25 14:47:48,249 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 32 transitions, 207 flow [2021-03-25 14:47:48,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 32 transitions, 207 flow [2021-03-25 14:47:48,266 INFO L129 PetriNetUnfolder]: 46/129 cut-off events. [2021-03-25 14:47:48,266 INFO L130 PetriNetUnfolder]: For 176/195 co-relation queries the response was YES. [2021-03-25 14:47:48,267 INFO L84 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 129 events. 46/129 cut-off events. For 176/195 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 562 event pairs, 10 based on Foata normal form. 2/127 useless extension candidates. Maximal degree in co-relation 412. Up to 55 conditions per place. [2021-03-25 14:47:48,269 INFO L142 LiptonReduction]: Number of co-enabled transitions 182 [2021-03-25 14:47:48,279 INFO L154 LiptonReduction]: Checked pairs total: 104 [2021-03-25 14:47:48,279 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:47:48,279 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-25 14:47:48,280 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 32 transitions, 207 flow [2021-03-25 14:47:48,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,281 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:47:48,281 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:47:48,281 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 14:47:48,281 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:47:48,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:47:48,282 INFO L82 PathProgramCache]: Analyzing trace with hash -428118102, now seen corresponding path program 1 times [2021-03-25 14:47:48,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:47:48,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453371834] [2021-03-25 14:47:48,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:47:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:47:48,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:48,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:47:48,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:48,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:47:48,376 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:47:48,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:47:48,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:47:48,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453371834] [2021-03-25 14:47:48,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:47:48,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:47:48,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062921847] [2021-03-25 14:47:48,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:47:48,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:47:48,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:47:48,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:47:48,393 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 116 [2021-03-25 14:47:48,393 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 32 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,393 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:47:48,393 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 116 [2021-03-25 14:47:48,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:47:48,443 INFO L129 PetriNetUnfolder]: 38/125 cut-off events. [2021-03-25 14:47:48,443 INFO L130 PetriNetUnfolder]: For 185/275 co-relation queries the response was YES. [2021-03-25 14:47:48,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 125 events. 38/125 cut-off events. For 185/275 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 537 event pairs, 5 based on Foata normal form. 10/131 useless extension candidates. Maximal degree in co-relation 465. Up to 44 conditions per place. [2021-03-25 14:47:48,445 INFO L132 encePairwiseOnDemand]: 109/116 looper letters, 11 selfloop transitions, 9 changer transitions 14/43 dead transitions. [2021-03-25 14:47:48,445 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 43 transitions, 348 flow [2021-03-25 14:47:48,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:47:48,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:47:48,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 456 transitions. [2021-03-25 14:47:48,447 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7862068965517242 [2021-03-25 14:47:48,448 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 456 transitions. [2021-03-25 14:47:48,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 456 transitions. [2021-03-25 14:47:48,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:47:48,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 456 transitions. [2021-03-25 14:47:48,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,451 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,451 INFO L185 Difference]: Start difference. First operand has 35 places, 32 transitions, 207 flow. Second operand 5 states and 456 transitions. [2021-03-25 14:47:48,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 43 transitions, 348 flow [2021-03-25 14:47:48,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 348 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 14:47:48,456 INFO L241 Difference]: Finished difference. Result has 42 places, 27 transitions, 205 flow [2021-03-25 14:47:48,457 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=205, PETRI_PLACES=42, PETRI_TRANSITIONS=27} [2021-03-25 14:47:48,457 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 10 predicate places. [2021-03-25 14:47:48,457 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:47:48,457 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 27 transitions, 205 flow [2021-03-25 14:47:48,458 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 27 transitions, 205 flow [2021-03-25 14:47:48,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 27 transitions, 205 flow [2021-03-25 14:47:48,463 INFO L129 PetriNetUnfolder]: 10/49 cut-off events. [2021-03-25 14:47:48,463 INFO L130 PetriNetUnfolder]: For 134/138 co-relation queries the response was YES. [2021-03-25 14:47:48,463 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 49 events. 10/49 cut-off events. For 134/138 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 127 event pairs, 0 based on Foata normal form. 1/50 useless extension candidates. Maximal degree in co-relation 181. Up to 18 conditions per place. [2021-03-25 14:47:48,464 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-25 14:47:48,465 INFO L154 LiptonReduction]: Checked pairs total: 70 [2021-03-25 14:47:48,465 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:47:48,466 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 14:47:48,473 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 27 transitions, 205 flow [2021-03-25 14:47:48,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,474 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:47:48,474 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:47:48,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 14:47:48,474 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:47:48,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:47:48,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1897312236, now seen corresponding path program 1 times [2021-03-25 14:47:48,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:47:48,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391479283] [2021-03-25 14:47:48,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:47:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:47:48,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:48,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:47:48,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:48,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:47:48,530 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:47:48,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:47:48,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:47:48,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391479283] [2021-03-25 14:47:48,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:47:48,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:47:48,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236493559] [2021-03-25 14:47:48,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:47:48,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:47:48,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:47:48,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:47:48,545 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 116 [2021-03-25 14:47:48,545 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 27 transitions, 205 flow. Second operand has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,545 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:47:48,546 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 116 [2021-03-25 14:47:48,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:47:48,571 INFO L129 PetriNetUnfolder]: 9/47 cut-off events. [2021-03-25 14:47:48,572 INFO L130 PetriNetUnfolder]: For 155/218 co-relation queries the response was YES. [2021-03-25 14:47:48,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 47 events. 9/47 cut-off events. For 155/218 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 115 event pairs, 0 based on Foata normal form. 7/54 useless extension candidates. Maximal degree in co-relation 195. Up to 17 conditions per place. [2021-03-25 14:47:48,572 INFO L132 encePairwiseOnDemand]: 109/116 looper letters, 10 selfloop transitions, 12 changer transitions 0/31 dead transitions. [2021-03-25 14:47:48,572 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 31 transitions, 285 flow [2021-03-25 14:47:48,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:47:48,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:47:48,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 362 transitions. [2021-03-25 14:47:48,574 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7801724137931034 [2021-03-25 14:47:48,574 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 362 transitions. [2021-03-25 14:47:48,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 362 transitions. [2021-03-25 14:47:48,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:47:48,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 362 transitions. [2021-03-25 14:47:48,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.5) internal successors, (362), 4 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,577 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,577 INFO L185 Difference]: Start difference. First operand has 42 places, 27 transitions, 205 flow. Second operand 4 states and 362 transitions. [2021-03-25 14:47:48,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 31 transitions, 285 flow [2021-03-25 14:47:48,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 31 transitions, 277 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 14:47:48,581 INFO L241 Difference]: Finished difference. Result has 46 places, 31 transitions, 289 flow [2021-03-25 14:47:48,581 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=289, PETRI_PLACES=46, PETRI_TRANSITIONS=31} [2021-03-25 14:47:48,582 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 14 predicate places. [2021-03-25 14:47:48,582 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:47:48,582 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 31 transitions, 289 flow [2021-03-25 14:47:48,582 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 31 transitions, 289 flow [2021-03-25 14:47:48,583 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 31 transitions, 289 flow [2021-03-25 14:47:48,587 INFO L129 PetriNetUnfolder]: 9/47 cut-off events. [2021-03-25 14:47:48,587 INFO L130 PetriNetUnfolder]: For 181/185 co-relation queries the response was YES. [2021-03-25 14:47:48,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 47 events. 9/47 cut-off events. For 181/185 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 122 event pairs, 0 based on Foata normal form. 1/48 useless extension candidates. Maximal degree in co-relation 201. Up to 17 conditions per place. [2021-03-25 14:47:48,588 INFO L142 LiptonReduction]: Number of co-enabled transitions 164 [2021-03-25 14:47:48,590 INFO L154 LiptonReduction]: Checked pairs total: 118 [2021-03-25 14:47:48,591 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:47:48,591 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 14:47:48,592 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 31 transitions, 289 flow [2021-03-25 14:47:48,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,592 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:47:48,593 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:47:48,593 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 14:47:48,593 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:47:48,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:47:48,593 INFO L82 PathProgramCache]: Analyzing trace with hash 615666444, now seen corresponding path program 1 times [2021-03-25 14:47:48,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:47:48,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818912326] [2021-03-25 14:47:48,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:47:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:47:48,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:48,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:47:48,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:48,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:47:48,653 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:47:48,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:47:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:47:48,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818912326] [2021-03-25 14:47:48,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:47:48,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:47:48,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893647489] [2021-03-25 14:47:48,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:47:48,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:47:48,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:47:48,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:47:48,670 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 116 [2021-03-25 14:47:48,671 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 31 transitions, 289 flow. Second operand has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,671 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:47:48,671 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 116 [2021-03-25 14:47:48,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:47:48,710 INFO L129 PetriNetUnfolder]: 8/57 cut-off events. [2021-03-25 14:47:48,710 INFO L130 PetriNetUnfolder]: For 254/302 co-relation queries the response was YES. [2021-03-25 14:47:48,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 57 events. 8/57 cut-off events. For 254/302 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 181 event pairs, 0 based on Foata normal form. 4/61 useless extension candidates. Maximal degree in co-relation 274. Up to 20 conditions per place. [2021-03-25 14:47:48,711 INFO L132 encePairwiseOnDemand]: 109/116 looper letters, 7 selfloop transitions, 10 changer transitions 10/36 dead transitions. [2021-03-25 14:47:48,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 36 transitions, 400 flow [2021-03-25 14:47:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:47:48,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:47:48,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 452 transitions. [2021-03-25 14:47:48,712 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7793103448275862 [2021-03-25 14:47:48,713 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 452 transitions. [2021-03-25 14:47:48,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 452 transitions. [2021-03-25 14:47:48,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:47:48,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 452 transitions. [2021-03-25 14:47:48,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.4) internal successors, (452), 5 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,716 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,716 INFO L185 Difference]: Start difference. First operand has 46 places, 31 transitions, 289 flow. Second operand 5 states and 452 transitions. [2021-03-25 14:47:48,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 36 transitions, 400 flow [2021-03-25 14:47:48,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 36 transitions, 383 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-25 14:47:48,719 INFO L241 Difference]: Finished difference. Result has 49 places, 25 transitions, 237 flow [2021-03-25 14:47:48,719 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=237, PETRI_PLACES=49, PETRI_TRANSITIONS=25} [2021-03-25 14:47:48,719 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 17 predicate places. [2021-03-25 14:47:48,720 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:47:48,720 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 25 transitions, 237 flow [2021-03-25 14:47:48,720 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 25 transitions, 237 flow [2021-03-25 14:47:48,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 25 transitions, 237 flow [2021-03-25 14:47:48,724 INFO L129 PetriNetUnfolder]: 4/34 cut-off events. [2021-03-25 14:47:48,724 INFO L130 PetriNetUnfolder]: For 132/132 co-relation queries the response was YES. [2021-03-25 14:47:48,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 34 events. 4/34 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 72 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 148. Up to 10 conditions per place. [2021-03-25 14:47:48,725 INFO L142 LiptonReduction]: Number of co-enabled transitions 102 [2021-03-25 14:47:48,750 INFO L154 LiptonReduction]: Checked pairs total: 126 [2021-03-25 14:47:48,751 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 14:47:48,751 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-25 14:47:48,754 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 24 transitions, 233 flow [2021-03-25 14:47:48,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,754 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:47:48,754 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:47:48,754 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 14:47:48,755 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:47:48,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:47:48,755 INFO L82 PathProgramCache]: Analyzing trace with hash -230107120, now seen corresponding path program 2 times [2021-03-25 14:47:48,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:47:48,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483420931] [2021-03-25 14:47:48,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:47:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:47:48,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:48,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:47:48,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:48,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:47:48,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:48,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:47:48,808 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:47:48,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:47:48,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:47:48,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483420931] [2021-03-25 14:47:48,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:47:48,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:47:48,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093880705] [2021-03-25 14:47:48,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:47:48,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:47:48,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:47:48,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:47:48,820 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 117 [2021-03-25 14:47:48,820 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 24 transitions, 233 flow. Second operand has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,820 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:47:48,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 117 [2021-03-25 14:47:48,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:47:48,845 INFO L129 PetriNetUnfolder]: 3/33 cut-off events. [2021-03-25 14:47:48,846 INFO L130 PetriNetUnfolder]: For 194/213 co-relation queries the response was YES. [2021-03-25 14:47:48,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 33 events. 3/33 cut-off events. For 194/213 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 69 event pairs, 0 based on Foata normal form. 9/42 useless extension candidates. Maximal degree in co-relation 168. Up to 11 conditions per place. [2021-03-25 14:47:48,846 INFO L132 encePairwiseOnDemand]: 111/117 looper letters, 3 selfloop transitions, 4 changer transitions 10/26 dead transitions. [2021-03-25 14:47:48,846 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 26 transitions, 294 flow [2021-03-25 14:47:48,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 14:47:48,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 14:47:48,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 535 transitions. [2021-03-25 14:47:48,848 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7621082621082621 [2021-03-25 14:47:48,848 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 535 transitions. [2021-03-25 14:47:48,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 535 transitions. [2021-03-25 14:47:48,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:47:48,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 535 transitions. [2021-03-25 14:47:48,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.16666666666667) internal successors, (535), 6 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,851 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,851 INFO L185 Difference]: Start difference. First operand has 48 places, 24 transitions, 233 flow. Second operand 6 states and 535 transitions. [2021-03-25 14:47:48,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 26 transitions, 294 flow [2021-03-25 14:47:48,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 26 transitions, 236 flow, removed 6 selfloop flow, removed 9 redundant places. [2021-03-25 14:47:48,854 INFO L241 Difference]: Finished difference. Result has 45 places, 16 transitions, 101 flow [2021-03-25 14:47:48,854 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=101, PETRI_PLACES=45, PETRI_TRANSITIONS=16} [2021-03-25 14:47:48,854 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 13 predicate places. [2021-03-25 14:47:48,854 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:47:48,855 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 16 transitions, 101 flow [2021-03-25 14:47:48,855 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 16 transitions, 101 flow [2021-03-25 14:47:48,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 16 transitions, 101 flow [2021-03-25 14:47:48,857 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-25 14:47:48,858 INFO L130 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2021-03-25 14:47:48,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 18 events. 0/18 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-25 14:47:48,859 INFO L142 LiptonReduction]: Number of co-enabled transitions 46 [2021-03-25 14:47:48,904 INFO L154 LiptonReduction]: Checked pairs total: 42 [2021-03-25 14:47:48,904 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 14:47:48,904 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-25 14:47:48,905 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 14 transitions, 95 flow [2021-03-25 14:47:48,905 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,905 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:47:48,906 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:47:48,906 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 14:47:48,906 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:47:48,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:47:48,906 INFO L82 PathProgramCache]: Analyzing trace with hash -318059926, now seen corresponding path program 1 times [2021-03-25 14:47:48,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:47:48,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387638763] [2021-03-25 14:47:48,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:47:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:47:48,935 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-25 14:47:48,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 14:47:48,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:48,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:47:48,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:47:48,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387638763] [2021-03-25 14:47:48,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:47:48,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:47:48,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051262982] [2021-03-25 14:47:48,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:47:48,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:47:48,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:47:48,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:47:48,944 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 119 [2021-03-25 14:47:48,944 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 14 transitions, 95 flow. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,945 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:47:48,945 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 119 [2021-03-25 14:47:48,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:47:48,970 INFO L129 PetriNetUnfolder]: 23/60 cut-off events. [2021-03-25 14:47:48,970 INFO L130 PetriNetUnfolder]: For 539/555 co-relation queries the response was YES. [2021-03-25 14:47:48,972 INFO L84 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 60 events. 23/60 cut-off events. For 539/555 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 185 event pairs, 9 based on Foata normal form. 5/64 useless extension candidates. Maximal degree in co-relation 239. Up to 39 conditions per place. [2021-03-25 14:47:48,972 INFO L132 encePairwiseOnDemand]: 113/119 looper letters, 5 selfloop transitions, 3 changer transitions 8/24 dead transitions. [2021-03-25 14:47:48,972 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 24 transitions, 192 flow [2021-03-25 14:47:48,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:47:48,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:47:48,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 473 transitions. [2021-03-25 14:47:48,974 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7949579831932773 [2021-03-25 14:47:48,974 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 473 transitions. [2021-03-25 14:47:48,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 473 transitions. [2021-03-25 14:47:48,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:47:48,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 473 transitions. [2021-03-25 14:47:48,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.6) internal successors, (473), 5 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,978 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:48,979 INFO L185 Difference]: Start difference. First operand has 41 places, 14 transitions, 95 flow. Second operand 5 states and 473 transitions. [2021-03-25 14:47:48,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 24 transitions, 192 flow [2021-03-25 14:47:48,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 24 transitions, 120 flow, removed 5 selfloop flow, removed 13 redundant places. [2021-03-25 14:47:48,980 INFO L241 Difference]: Finished difference. Result has 35 places, 16 transitions, 84 flow [2021-03-25 14:47:48,981 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=84, PETRI_PLACES=35, PETRI_TRANSITIONS=16} [2021-03-25 14:47:48,981 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2021-03-25 14:47:48,981 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:47:48,981 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 16 transitions, 84 flow [2021-03-25 14:47:48,981 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 16 transitions, 84 flow [2021-03-25 14:47:48,981 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 16 transitions, 84 flow [2021-03-25 14:47:48,988 INFO L129 PetriNetUnfolder]: 14/41 cut-off events. [2021-03-25 14:47:48,988 INFO L130 PetriNetUnfolder]: For 77/81 co-relation queries the response was YES. [2021-03-25 14:47:48,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 41 events. 14/41 cut-off events. For 77/81 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 94 event pairs, 8 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 139. Up to 30 conditions per place. [2021-03-25 14:47:48,989 INFO L142 LiptonReduction]: Number of co-enabled transitions 22 [2021-03-25 14:47:49,030 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 14:47:49,030 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 14:47:49,030 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 49 [2021-03-25 14:47:49,033 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 16 transitions, 87 flow [2021-03-25 14:47:49,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:49,034 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:47:49,034 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:47:49,034 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 14:47:49,034 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:47:49,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:47:49,035 INFO L82 PathProgramCache]: Analyzing trace with hash 615791760, now seen corresponding path program 1 times [2021-03-25 14:47:49,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:47:49,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398964992] [2021-03-25 14:47:49,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:47:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:47:49,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:49,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:47:49,093 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-25 14:47:49,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 14:47:49,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:49,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:47:49,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:47:49,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398964992] [2021-03-25 14:47:49,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:47:49,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:47:49,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676112508] [2021-03-25 14:47:49,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:47:49,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:47:49,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:47:49,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:47:49,102 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 120 [2021-03-25 14:47:49,103 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 16 transitions, 87 flow. Second operand has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:49,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:47:49,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 120 [2021-03-25 14:47:49,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:47:49,149 INFO L129 PetriNetUnfolder]: 9/38 cut-off events. [2021-03-25 14:47:49,150 INFO L130 PetriNetUnfolder]: For 111/130 co-relation queries the response was YES. [2021-03-25 14:47:49,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 38 events. 9/38 cut-off events. For 111/130 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 85 event pairs, 1 based on Foata normal form. 6/43 useless extension candidates. Maximal degree in co-relation 151. Up to 27 conditions per place. [2021-03-25 14:47:49,150 INFO L132 encePairwiseOnDemand]: 113/120 looper letters, 3 selfloop transitions, 5 changer transitions 10/26 dead transitions. [2021-03-25 14:47:49,150 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 26 transitions, 196 flow [2021-03-25 14:47:49,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 14:47:49,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 14:47:49,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 566 transitions. [2021-03-25 14:47:49,153 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7861111111111111 [2021-03-25 14:47:49,153 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 566 transitions. [2021-03-25 14:47:49,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 566 transitions. [2021-03-25 14:47:49,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:47:49,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 566 transitions. [2021-03-25 14:47:49,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.33333333333333) internal successors, (566), 6 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:49,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:49,156 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:49,156 INFO L185 Difference]: Start difference. First operand has 33 places, 16 transitions, 87 flow. Second operand 6 states and 566 transitions. [2021-03-25 14:47:49,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 26 transitions, 196 flow [2021-03-25 14:47:49,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 26 transitions, 185 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-25 14:47:49,157 INFO L241 Difference]: Finished difference. Result has 38 places, 16 transitions, 103 flow [2021-03-25 14:47:49,158 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=103, PETRI_PLACES=38, PETRI_TRANSITIONS=16} [2021-03-25 14:47:49,158 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 6 predicate places. [2021-03-25 14:47:49,158 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:47:49,158 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 16 transitions, 103 flow [2021-03-25 14:47:49,158 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 16 transitions, 103 flow [2021-03-25 14:47:49,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 16 transitions, 103 flow [2021-03-25 14:47:49,161 INFO L129 PetriNetUnfolder]: 2/21 cut-off events. [2021-03-25 14:47:49,161 INFO L130 PetriNetUnfolder]: For 62/67 co-relation queries the response was YES. [2021-03-25 14:47:49,161 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 21 events. 2/21 cut-off events. For 62/67 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 23 event pairs, 1 based on Foata normal form. 2/22 useless extension candidates. Maximal degree in co-relation 72. Up to 10 conditions per place. [2021-03-25 14:47:49,161 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-25 14:47:49,293 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 14:47:49,293 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 14:47:49,293 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 135 [2021-03-25 14:47:49,294 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 15 transitions, 103 flow [2021-03-25 14:47:49,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:49,294 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:47:49,294 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:47:49,295 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 14:47:49,295 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:47:49,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:47:49,295 INFO L82 PathProgramCache]: Analyzing trace with hash 645372568, now seen corresponding path program 1 times [2021-03-25 14:47:49,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:47:49,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350524470] [2021-03-25 14:47:49,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:47:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:47:49,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:49,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:47:49,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:49,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:47:49,336 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-25 14:47:49,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 14:47:49,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:47:49,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:47:49,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:47:49,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350524470] [2021-03-25 14:47:49,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:47:49,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:47:49,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3756659] [2021-03-25 14:47:49,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 14:47:49,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:47:49,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 14:47:49,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 14:47:49,348 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 122 [2021-03-25 14:47:49,349 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 15 transitions, 103 flow. Second operand has 6 states, 6 states have (on average 91.83333333333333) internal successors, (551), 6 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:49,349 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:47:49,349 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 122 [2021-03-25 14:47:49,349 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:47:49,366 INFO L129 PetriNetUnfolder]: 1/17 cut-off events. [2021-03-25 14:47:49,366 INFO L130 PetriNetUnfolder]: For 47/50 co-relation queries the response was YES. [2021-03-25 14:47:49,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 17 events. 1/17 cut-off events. For 47/50 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 20 event pairs, 0 based on Foata normal form. 2/18 useless extension candidates. Maximal degree in co-relation 61. Up to 7 conditions per place. [2021-03-25 14:47:49,367 INFO L132 encePairwiseOnDemand]: 115/122 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2021-03-25 14:47:49,367 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 14 transitions, 99 flow [2021-03-25 14:47:49,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:47:49,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:47:49,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 462 transitions. [2021-03-25 14:47:49,368 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7573770491803279 [2021-03-25 14:47:49,368 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 462 transitions. [2021-03-25 14:47:49,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 462 transitions. [2021-03-25 14:47:49,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:47:49,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 462 transitions. [2021-03-25 14:47:49,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.4) internal successors, (462), 5 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:49,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:49,380 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:49,380 INFO L185 Difference]: Start difference. First operand has 35 places, 15 transitions, 103 flow. Second operand 5 states and 462 transitions. [2021-03-25 14:47:49,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 14 transitions, 99 flow [2021-03-25 14:47:49,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 14 transitions, 78 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-25 14:47:49,382 INFO L241 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2021-03-25 14:47:49,382 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2021-03-25 14:47:49,382 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2021-03-25 14:47:49,382 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:47:49,382 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 0 transitions, 0 flow [2021-03-25 14:47:49,382 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 0 transitions, 0 flow [2021-03-25 14:47:49,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 14:47:49,383 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 14:47:49,383 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:47:49,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-25 14:47:49,383 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 14:47:49,383 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:47:49,383 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:47:49,383 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 14:47:49,384 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 14:47:49,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 91.83333333333333) internal successors, (551), 6 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:47:49,385 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 14:47:49,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 02:47:49 BasicIcfg [2021-03-25 14:47:49,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 14:47:49,389 INFO L168 Benchmark]: Toolchain (without parser) took 5268.05 ms. Allocated memory was 255.9 MB in the beginning and 427.8 MB in the end (delta: 172.0 MB). Free memory was 235.1 MB in the beginning and 406.5 MB in the end (delta: -171.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 14:47:49,390 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory is still 238.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 14:47:49,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 457.28 ms. Allocated memory was 255.9 MB in the beginning and 356.5 MB in the end (delta: 100.7 MB). Free memory was 235.1 MB in the beginning and 319.3 MB in the end (delta: -84.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-25 14:47:49,390 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.20 ms. Allocated memory is still 356.5 MB. Free memory was 319.3 MB in the beginning and 317.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:47:49,391 INFO L168 Benchmark]: Boogie Preprocessor took 30.21 ms. Allocated memory is still 356.5 MB. Free memory was 317.2 MB in the beginning and 315.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:47:49,391 INFO L168 Benchmark]: RCFGBuilder took 470.95 ms. Allocated memory is still 356.5 MB. Free memory was 315.6 MB in the beginning and 294.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-25 14:47:49,391 INFO L168 Benchmark]: TraceAbstraction took 4259.83 ms. Allocated memory was 356.5 MB in the beginning and 427.8 MB in the end (delta: 71.3 MB). Free memory was 293.5 MB in the beginning and 406.5 MB in the end (delta: -112.9 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 14:47:49,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory is still 238.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 457.28 ms. Allocated memory was 255.9 MB in the beginning and 356.5 MB in the end (delta: 100.7 MB). Free memory was 235.1 MB in the beginning and 319.3 MB in the end (delta: -84.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 44.20 ms. Allocated memory is still 356.5 MB. Free memory was 319.3 MB in the beginning and 317.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.21 ms. Allocated memory is still 356.5 MB. Free memory was 317.2 MB in the beginning and 315.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 470.95 ms. Allocated memory is still 356.5 MB. Free memory was 315.6 MB in the beginning and 294.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4259.83 ms. Allocated memory was 356.5 MB in the beginning and 427.8 MB in the end (delta: 71.3 MB). Free memory was 293.5 MB in the beginning and 406.5 MB in the end (delta: -112.9 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1474.7ms, 68 PlacesBefore, 32 PlacesAfterwards, 59 TransitionsBefore, 22 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 37 TotalNumberOfCompositions, 996 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 597, positive: 564, positive conditional: 0, positive unconditional: 564, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 517, positive: 492, positive conditional: 0, positive unconditional: 492, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 517, positive: 492, positive conditional: 0, positive unconditional: 492, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 517, positive: 485, positive conditional: 0, positive unconditional: 485, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 32, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 147, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 112, negative conditional: 0, negative unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 597, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 517, unknown conditional: 0, unknown unconditional: 517] , Statistics on independence cache: Total cache size (in pairs): 44, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 816.2ms, 35 PlacesBefore, 30 PlacesAfterwards, 27 TransitionsBefore, 22 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 139 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 73, positive: 65, positive conditional: 0, positive unconditional: 65, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 35, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 35, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 28, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 73, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 35, unknown conditional: 0, unknown unconditional: 35] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.8ms, 35 PlacesBefore, 35 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 182 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 104 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 56, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.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: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 56, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.5ms, 42 PlacesBefore, 42 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 70 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 46, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 7, negative conditional: 0, negative unconditional: 7, 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: 46, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.4ms, 46 PlacesBefore, 46 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 118 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 72, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , 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: 72, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.7ms, 49 PlacesBefore, 48 PlacesAfterwards, 25 TransitionsBefore, 24 TransitionsAfterwards, 102 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 126 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 65, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 65, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 37, Positive conditional cache size: 0, Positive unconditional cache size: 37, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.4ms, 45 PlacesBefore, 41 PlacesAfterwards, 16 TransitionsBefore, 14 TransitionsAfterwards, 46 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 42 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , 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: 17, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.7ms, 35 PlacesBefore, 33 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 22 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 134.7ms, 38 PlacesBefore, 35 PlacesAfterwards, 16 TransitionsBefore, 15 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , 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: 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] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8ms, 32 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): 4, Positive cache size: 4, Positive conditional cache size: 0, Positive unconditional cache size: 4, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 9.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4149.4ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 510.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1552.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 53 SDtfs, 45 SDslu, 37 SDs, 0 SdLazy, 141 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 120.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 131.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=289occurred in iteration=4, InterpolantAutomatonStates: 44, 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: 26.9ms SsaConstructionTime, 164.0ms SatisfiabilityAnalysisTime, 548.6ms InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 557 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...