/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:29:07,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:29:07,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:29:07,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:29:07,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:29:07,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:29:07,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:29:07,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:29:07,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:29:07,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:29:07,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:29:07,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:29:07,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:29:07,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:29:07,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:29:07,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:29:07,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:29:07,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:29:07,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:29:07,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:29:07,835 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 00:29:07,905 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:29:07,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:29:07,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:29:07,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:29:07,914 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:29:07,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:29:07,915 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:29:07,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:29:07,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:29:07,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:29:07,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:29:07,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:29:07,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:29:07,919 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:29:07,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:29:07,920 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:29:07,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:29:07,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:29:07,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:29:07,921 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:29:07,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:29:07,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:29:07,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:29:07,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:29:07,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:29:07,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:29:07,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:29:07,925 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:29:07,925 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:29:07,925 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:29:07,925 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:29:08,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:29:08,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:29:08,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:29:08,524 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:29:08,526 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:29:08,528 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2021-04-29 00:29:08,662 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076f993dc/8168ab95968241f4bbd51662061e4c42/FLAG98bbb8ebd [2021-04-29 00:29:09,665 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:29:09,668 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2021-04-29 00:29:09,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076f993dc/8168ab95968241f4bbd51662061e4c42/FLAG98bbb8ebd [2021-04-29 00:29:09,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/076f993dc/8168ab95968241f4bbd51662061e4c42 [2021-04-29 00:29:09,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:29:09,960 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:29:09,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:29:09,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:29:09,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:29:09,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:29:09" (1/1) ... [2021-04-29 00:29:09,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75800b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:09, skipping insertion in model container [2021-04-29 00:29:09,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:29:09" (1/1) ... [2021-04-29 00:29:09,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:29:10,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:29:10,417 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/safe026_tso.oepc.i[950,963] [2021-04-29 00:29:10,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:29:10,798 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:29:10,815 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/safe026_tso.oepc.i[950,963] [2021-04-29 00:29:10,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:29:11,056 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:29:11,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:11 WrapperNode [2021-04-29 00:29:11,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:29:11,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:29:11,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:29:11,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:29:11,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:11" (1/1) ... [2021-04-29 00:29:11,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:11" (1/1) ... [2021-04-29 00:29:11,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:29:11,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:29:11,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:29:11,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:29:11,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:11" (1/1) ... [2021-04-29 00:29:11,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:11" (1/1) ... [2021-04-29 00:29:11,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:11" (1/1) ... [2021-04-29 00:29:11,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:11" (1/1) ... [2021-04-29 00:29:11,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:11" (1/1) ... [2021-04-29 00:29:11,151 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:11" (1/1) ... [2021-04-29 00:29:11,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:11" (1/1) ... [2021-04-29 00:29:11,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:29:11,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:29:11,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:29:11,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:29:11,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:29:11,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:29:11,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:29:11,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:29:11,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:29:11,288 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:29:11,288 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:29:11,289 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:29:11,289 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:29:11,289 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:29:11,289 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:29:11,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:29:11,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:29:11,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:29:11,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:29:11,292 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:29:11,734 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:29:11,734 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:29:11,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:29:11 BoogieIcfgContainer [2021-04-29 00:29:11,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:29:11,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:29:11,740 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:29:11,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:29:11,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:29:09" (1/3) ... [2021-04-29 00:29:11,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e09d375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:29:11, skipping insertion in model container [2021-04-29 00:29:11,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:11" (2/3) ... [2021-04-29 00:29:11,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e09d375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:29:11, skipping insertion in model container [2021-04-29 00:29:11,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:29:11" (3/3) ... [2021-04-29 00:29:11,749 INFO L111 eAbstractionObserver]: Analyzing ICFG safe026_tso.oepc.i [2021-04-29 00:29:11,758 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:29:11,764 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:29:11,765 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:29:11,803 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,803 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,804 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,804 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,804 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,804 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,805 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,805 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,805 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,806 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,807 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,807 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,807 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,808 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,808 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,808 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,808 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,809 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,809 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,809 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,810 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,811 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,811 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,811 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,811 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,812 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,812 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,812 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,813 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,816 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,816 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,822 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,823 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,826 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,826 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:11,828 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:29:11,859 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 00:29:11,894 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:29:11,894 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:29:11,894 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:29:11,894 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:29:11,895 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:29:11,895 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:29:11,895 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:29:11,895 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:29:11,914 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-04-29 00:29:11,994 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-04-29 00:29:11,994 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:29:12,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-04-29 00:29:12,003 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 161 flow [2021-04-29 00:29:12,013 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2021-04-29 00:29:12,015 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:29:12,037 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 125 flow [2021-04-29 00:29:12,043 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 125 flow [2021-04-29 00:29:12,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 125 flow [2021-04-29 00:29:12,068 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-04-29 00:29:12,069 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:29:12,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 58 events. 1/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-04-29 00:29:12,073 INFO L146 LiptonReduction]: Number of co-enabled transitions 804 [2021-04-29 00:29:16,816 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:29:16,962 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:29:17,135 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:29:17,335 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:29:17,498 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:29:17,663 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:29:17,833 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:29:18,016 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:29:18,187 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:29:18,343 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:29:18,713 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:29:18,924 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:29:19,133 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:29:19,366 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:29:19,604 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:29:19,835 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:29:20,081 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:29:20,318 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:29:20,551 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:29:20,796 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:29:21,032 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:29:21,277 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:29:21,631 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-29 00:29:21,929 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-29 00:29:22,818 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 00:29:23,157 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 00:29:23,289 INFO L158 LiptonReduction]: Checked pairs total: 5914 [2021-04-29 00:29:23,290 INFO L160 LiptonReduction]: Total number of compositions: 91 [2021-04-29 00:29:23,294 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11281 [2021-04-29 00:29:23,336 INFO L129 PetriNetUnfolder]: 0/60 cut-off events. [2021-04-29 00:29:23,337 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:29:23,337 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:29:23,339 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:29:23,340 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:29:23,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:29:23,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1671274434, now seen corresponding path program 1 times [2021-04-29 00:29:23,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:29:23,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334982781] [2021-04-29 00:29:23,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:29:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:29:23,708 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:29:23,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:29:23,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:29:23,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334982781] [2021-04-29 00:29:23,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:29:23,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:29:23,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888578835] [2021-04-29 00:29:23,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:29:23,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:29:23,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:29:23,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:29:23,781 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 164 [2021-04-29 00:29:23,790 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 68 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:23,791 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:29:23,791 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 164 [2021-04-29 00:29:23,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:29:24,082 INFO L129 PetriNetUnfolder]: 164/583 cut-off events. [2021-04-29 00:29:24,083 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:29:24,091 INFO L84 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 583 events. 164/583 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 4773 event pairs, 47 based on Foata normal form. 0/293 useless extension candidates. Maximal degree in co-relation 858. Up to 215 conditions per place. [2021-04-29 00:29:24,096 INFO L132 encePairwiseOnDemand]: 146/164 looper letters, 5 selfloop transitions, 5 changer transitions 37/77 dead transitions. [2021-04-29 00:29:24,097 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 77 transitions, 227 flow [2021-04-29 00:29:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:29:24,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:29:24,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2021-04-29 00:29:24,131 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7520325203252033 [2021-04-29 00:29:24,133 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 370 transitions. [2021-04-29 00:29:24,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 370 transitions. [2021-04-29 00:29:24,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:29:24,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 370 transitions. [2021-04-29 00:29:24,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:24,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:24,181 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:24,184 INFO L185 Difference]: Start difference. First operand has 78 places, 68 transitions, 145 flow. Second operand 3 states and 370 transitions. [2021-04-29 00:29:24,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 77 transitions, 227 flow [2021-04-29 00:29:24,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 77 transitions, 224 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:29:24,196 INFO L241 Difference]: Finished difference. Result has 79 places, 40 transitions, 116 flow [2021-04-29 00:29:24,199 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=79, PETRI_TRANSITIONS=40} [2021-04-29 00:29:24,201 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 1 predicate places. [2021-04-29 00:29:24,201 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:29:24,201 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 40 transitions, 116 flow [2021-04-29 00:29:24,203 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 40 transitions, 116 flow [2021-04-29 00:29:24,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 40 transitions, 116 flow [2021-04-29 00:29:24,226 INFO L129 PetriNetUnfolder]: 24/140 cut-off events. [2021-04-29 00:29:24,227 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-04-29 00:29:24,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 140 events. 24/140 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 816 event pairs, 6 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 221. Up to 45 conditions per place. [2021-04-29 00:29:24,232 INFO L146 LiptonReduction]: Number of co-enabled transitions 834 [2021-04-29 00:29:24,245 INFO L158 LiptonReduction]: Checked pairs total: 81 [2021-04-29 00:29:24,246 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:29:24,246 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 45 [2021-04-29 00:29:24,251 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 116 flow [2021-04-29 00:29:24,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:24,252 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:29:24,252 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:29:24,252 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:29:24,252 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:29:24,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:29:24,256 INFO L82 PathProgramCache]: Analyzing trace with hash -269901362, now seen corresponding path program 1 times [2021-04-29 00:29:24,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:29:24,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696749866] [2021-04-29 00:29:24,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:29:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:29:24,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:24,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:29:24,406 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:29:24,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:29:24,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:29:24,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696749866] [2021-04-29 00:29:24,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:29:24,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:29:24,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636044958] [2021-04-29 00:29:24,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:29:24,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:29:24,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:29:24,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:29:24,422 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 164 [2021-04-29 00:29:24,423 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:24,423 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:29:24,423 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 164 [2021-04-29 00:29:24,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:29:24,480 INFO L129 PetriNetUnfolder]: 21/131 cut-off events. [2021-04-29 00:29:24,480 INFO L130 PetriNetUnfolder]: For 23/39 co-relation queries the response was YES. [2021-04-29 00:29:24,481 INFO L84 FinitePrefix]: Finished finitePrefix Result has 264 conditions, 131 events. 21/131 cut-off events. For 23/39 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 698 event pairs, 4 based on Foata normal form. 1/78 useless extension candidates. Maximal degree in co-relation 253. Up to 40 conditions per place. [2021-04-29 00:29:24,483 INFO L132 encePairwiseOnDemand]: 158/164 looper letters, 6 selfloop transitions, 6 changer transitions 1/42 dead transitions. [2021-04-29 00:29:24,483 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 42 transitions, 152 flow [2021-04-29 00:29:24,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:29:24,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:29:24,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 459 transitions. [2021-04-29 00:29:24,486 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6996951219512195 [2021-04-29 00:29:24,486 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 459 transitions. [2021-04-29 00:29:24,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 459 transitions. [2021-04-29 00:29:24,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:29:24,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 459 transitions. [2021-04-29 00:29:24,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.75) internal successors, (459), 4 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) [2021-04-29 00:29:24,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:24,495 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:24,495 INFO L185 Difference]: Start difference. First operand has 47 places, 40 transitions, 116 flow. Second operand 4 states and 459 transitions. [2021-04-29 00:29:24,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 42 transitions, 152 flow [2021-04-29 00:29:24,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 42 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:29:24,498 INFO L241 Difference]: Finished difference. Result has 51 places, 41 transitions, 142 flow [2021-04-29 00:29:24,498 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=51, PETRI_TRANSITIONS=41} [2021-04-29 00:29:24,499 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -27 predicate places. [2021-04-29 00:29:24,499 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:29:24,499 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 41 transitions, 142 flow [2021-04-29 00:29:24,500 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 41 transitions, 142 flow [2021-04-29 00:29:24,500 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 41 transitions, 142 flow [2021-04-29 00:29:24,516 INFO L129 PetriNetUnfolder]: 21/130 cut-off events. [2021-04-29 00:29:24,517 INFO L130 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2021-04-29 00:29:24,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 130 events. 21/130 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 729 event pairs, 4 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 234. Up to 40 conditions per place. [2021-04-29 00:29:24,522 INFO L146 LiptonReduction]: Number of co-enabled transitions 844 [2021-04-29 00:29:24,529 INFO L158 LiptonReduction]: Checked pairs total: 109 [2021-04-29 00:29:24,529 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:29:24,530 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-04-29 00:29:24,531 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 41 transitions, 142 flow [2021-04-29 00:29:24,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:24,532 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:29:24,532 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:29:24,533 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:29:24,533 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:29:24,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:29:24,534 INFO L82 PathProgramCache]: Analyzing trace with hash -269901548, now seen corresponding path program 1 times [2021-04-29 00:29:24,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:29:24,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855666316] [2021-04-29 00:29:24,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:29:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:29:24,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:24,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:29:24,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:24,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:29:24,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:29:24,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855666316] [2021-04-29 00:29:24,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:29:24,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:29:24,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463355821] [2021-04-29 00:29:24,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:29:24,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:29:24,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:29:24,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:29:24,673 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 164 [2021-04-29 00:29:24,674 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 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) [2021-04-29 00:29:24,675 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:29:24,675 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 164 [2021-04-29 00:29:24,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:29:24,721 INFO L129 PetriNetUnfolder]: 14/129 cut-off events. [2021-04-29 00:29:24,722 INFO L130 PetriNetUnfolder]: For 85/93 co-relation queries the response was YES. [2021-04-29 00:29:24,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 129 events. 14/129 cut-off events. For 85/93 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 747 event pairs, 4 based on Foata normal form. 8/83 useless extension candidates. Maximal degree in co-relation 255. Up to 36 conditions per place. [2021-04-29 00:29:24,723 INFO L132 encePairwiseOnDemand]: 159/164 looper letters, 5 selfloop transitions, 5 changer transitions 6/47 dead transitions. [2021-04-29 00:29:24,723 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 47 transitions, 212 flow [2021-04-29 00:29:24,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:29:24,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:29:24,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 468 transitions. [2021-04-29 00:29:24,726 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7134146341463414 [2021-04-29 00:29:24,726 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 468 transitions. [2021-04-29 00:29:24,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 468 transitions. [2021-04-29 00:29:24,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:29:24,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 468 transitions. [2021-04-29 00:29:24,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:24,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:24,731 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:24,732 INFO L185 Difference]: Start difference. First operand has 50 places, 41 transitions, 142 flow. Second operand 4 states and 468 transitions. [2021-04-29 00:29:24,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 47 transitions, 212 flow [2021-04-29 00:29:24,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 47 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:29:24,736 INFO L241 Difference]: Finished difference. Result has 54 places, 41 transitions, 164 flow [2021-04-29 00:29:24,736 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=54, PETRI_TRANSITIONS=41} [2021-04-29 00:29:24,737 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -24 predicate places. [2021-04-29 00:29:24,737 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:29:24,737 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 41 transitions, 164 flow [2021-04-29 00:29:24,737 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 41 transitions, 164 flow [2021-04-29 00:29:24,738 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 41 transitions, 164 flow [2021-04-29 00:29:24,752 INFO L129 PetriNetUnfolder]: 10/84 cut-off events. [2021-04-29 00:29:24,753 INFO L130 PetriNetUnfolder]: For 62/68 co-relation queries the response was YES. [2021-04-29 00:29:24,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 84 events. 10/84 cut-off events. For 62/68 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 384 event pairs, 3 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 178. Up to 25 conditions per place. [2021-04-29 00:29:24,756 INFO L146 LiptonReduction]: Number of co-enabled transitions 824 [2021-04-29 00:29:24,763 INFO L158 LiptonReduction]: Checked pairs total: 103 [2021-04-29 00:29:24,764 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:29:24,764 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-04-29 00:29:24,766 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 41 transitions, 164 flow [2021-04-29 00:29:24,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 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) [2021-04-29 00:29:24,767 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:29:24,768 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:29:24,768 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:29:24,768 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:29:24,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:29:24,769 INFO L82 PathProgramCache]: Analyzing trace with hash -317631296, now seen corresponding path program 1 times [2021-04-29 00:29:24,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:29:24,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316403741] [2021-04-29 00:29:24,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:29:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:29:24,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:24,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:29:24,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:24,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:29:24,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:29:24,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316403741] [2021-04-29 00:29:24,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:29:24,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:29:24,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867816885] [2021-04-29 00:29:24,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:29:24,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:29:24,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:29:24,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:29:24,858 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 164 [2021-04-29 00:29:24,859 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 41 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:24,859 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:29:24,859 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 164 [2021-04-29 00:29:24,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:29:26,181 INFO L129 PetriNetUnfolder]: 5419/8714 cut-off events. [2021-04-29 00:29:26,181 INFO L130 PetriNetUnfolder]: For 2198/3980 co-relation queries the response was YES. [2021-04-29 00:29:26,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18005 conditions, 8714 events. 5419/8714 cut-off events. For 2198/3980 co-relation queries the response was YES. Maximal size of possible extension queue 2196. Compared 75669 event pairs, 2478 based on Foata normal form. 108/2283 useless extension candidates. Maximal degree in co-relation 17988. Up to 5650 conditions per place. [2021-04-29 00:29:26,256 INFO L132 encePairwiseOnDemand]: 146/164 looper letters, 30 selfloop transitions, 28 changer transitions 0/77 dead transitions. [2021-04-29 00:29:26,256 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 77 transitions, 352 flow [2021-04-29 00:29:26,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:29:26,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:29:26,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 576 transitions. [2021-04-29 00:29:26,259 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7024390243902439 [2021-04-29 00:29:26,259 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 576 transitions. [2021-04-29 00:29:26,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 576 transitions. [2021-04-29 00:29:26,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:29:26,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 576 transitions. [2021-04-29 00:29:26,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:26,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:26,268 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:26,268 INFO L185 Difference]: Start difference. First operand has 54 places, 41 transitions, 164 flow. Second operand 5 states and 576 transitions. [2021-04-29 00:29:26,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 77 transitions, 352 flow [2021-04-29 00:29:26,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 77 transitions, 329 flow, removed 7 selfloop flow, removed 3 redundant places. [2021-04-29 00:29:26,277 INFO L241 Difference]: Finished difference. Result has 58 places, 67 transitions, 352 flow [2021-04-29 00:29:26,278 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=352, PETRI_PLACES=58, PETRI_TRANSITIONS=67} [2021-04-29 00:29:26,278 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -20 predicate places. [2021-04-29 00:29:26,279 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:29:26,279 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 67 transitions, 352 flow [2021-04-29 00:29:26,280 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 67 transitions, 352 flow [2021-04-29 00:29:26,281 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 67 transitions, 352 flow [2021-04-29 00:29:27,216 INFO L129 PetriNetUnfolder]: 4913/8046 cut-off events. [2021-04-29 00:29:27,216 INFO L130 PetriNetUnfolder]: For 2183/6432 co-relation queries the response was YES. [2021-04-29 00:29:27,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22861 conditions, 8046 events. 4913/8046 cut-off events. For 2183/6432 co-relation queries the response was YES. Maximal size of possible extension queue 1772. Compared 69309 event pairs, 2331 based on Foata normal form. 2/2180 useless extension candidates. Maximal degree in co-relation 22844. Up to 7605 conditions per place. [2021-04-29 00:29:27,423 INFO L146 LiptonReduction]: Number of co-enabled transitions 1046 [2021-04-29 00:29:27,450 INFO L158 LiptonReduction]: Checked pairs total: 141 [2021-04-29 00:29:27,450 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:29:27,451 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1172 [2021-04-29 00:29:27,460 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 67 transitions, 352 flow [2021-04-29 00:29:27,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:27,462 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:29:27,462 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:29:27,464 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:29:27,465 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:29:27,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:29:27,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1256648700, now seen corresponding path program 1 times [2021-04-29 00:29:27,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:29:27,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900177331] [2021-04-29 00:29:27,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:29:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:29:27,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:27,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:29:27,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:27,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:29:27,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:27,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:29:27,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:29:27,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900177331] [2021-04-29 00:29:27,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:29:27,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:29:27,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063474170] [2021-04-29 00:29:27,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:29:27,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:29:27,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:29:27,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:29:27,638 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 164 [2021-04-29 00:29:27,640 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 67 transitions, 352 flow. Second operand has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:27,641 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:29:27,641 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 164 [2021-04-29 00:29:27,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:29:29,077 INFO L129 PetriNetUnfolder]: 5098/9215 cut-off events. [2021-04-29 00:29:29,078 INFO L130 PetriNetUnfolder]: For 4869/44187 co-relation queries the response was YES. [2021-04-29 00:29:29,135 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35071 conditions, 9215 events. 5098/9215 cut-off events. For 4869/44187 co-relation queries the response was YES. Maximal size of possible extension queue 2613. Compared 90936 event pairs, 522 based on Foata normal form. 163/2848 useless extension candidates. Maximal degree in co-relation 35052. Up to 8541 conditions per place. [2021-04-29 00:29:29,174 INFO L132 encePairwiseOnDemand]: 146/164 looper letters, 22 selfloop transitions, 54 changer transitions 9/104 dead transitions. [2021-04-29 00:29:29,174 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 104 transitions, 721 flow [2021-04-29 00:29:29,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:29:29,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:29:29,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 808 transitions. [2021-04-29 00:29:29,177 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7038327526132404 [2021-04-29 00:29:29,178 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 808 transitions. [2021-04-29 00:29:29,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 808 transitions. [2021-04-29 00:29:29,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:29:29,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 808 transitions. [2021-04-29 00:29:29,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 115.42857142857143) internal successors, (808), 7 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:29,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 164.0) internal successors, (1312), 8 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:29,187 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 164.0) internal successors, (1312), 8 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:29,187 INFO L185 Difference]: Start difference. First operand has 58 places, 67 transitions, 352 flow. Second operand 7 states and 808 transitions. [2021-04-29 00:29:29,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 104 transitions, 721 flow [2021-04-29 00:29:29,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 104 transitions, 721 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:29:29,240 INFO L241 Difference]: Finished difference. Result has 67 places, 93 transitions, 703 flow [2021-04-29 00:29:29,241 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=703, PETRI_PLACES=67, PETRI_TRANSITIONS=93} [2021-04-29 00:29:29,242 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -11 predicate places. [2021-04-29 00:29:29,242 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:29:29,242 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 93 transitions, 703 flow [2021-04-29 00:29:29,243 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 93 transitions, 703 flow [2021-04-29 00:29:29,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 93 transitions, 703 flow [2021-04-29 00:29:30,118 INFO L129 PetriNetUnfolder]: 3073/6272 cut-off events. [2021-04-29 00:29:30,118 INFO L130 PetriNetUnfolder]: For 12926/32823 co-relation queries the response was YES. [2021-04-29 00:29:30,162 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26514 conditions, 6272 events. 3073/6272 cut-off events. For 12926/32823 co-relation queries the response was YES. Maximal size of possible extension queue 1548. Compared 65638 event pairs, 513 based on Foata normal form. 7/1690 useless extension candidates. Maximal degree in co-relation 26492. Up to 5760 conditions per place. [2021-04-29 00:29:30,275 INFO L146 LiptonReduction]: Number of co-enabled transitions 1308 [2021-04-29 00:29:30,317 INFO L158 LiptonReduction]: Checked pairs total: 183 [2021-04-29 00:29:30,317 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:29:30,318 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1076 [2021-04-29 00:29:30,320 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 93 transitions, 703 flow [2021-04-29 00:29:30,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:30,321 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:29:30,321 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:29:30,321 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:29:30,321 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:29:30,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:29:30,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1036712201, now seen corresponding path program 1 times [2021-04-29 00:29:30,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:29:30,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506785319] [2021-04-29 00:29:30,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:29:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:29:30,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:30,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:29:30,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:30,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:29:30,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:30,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:29:30,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:30,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:29:30,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:29:30,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506785319] [2021-04-29 00:29:30,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:29:30,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:29:30,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184988467] [2021-04-29 00:29:30,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:29:30,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:29:30,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:29:30,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:29:30,403 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 164 [2021-04-29 00:29:30,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 93 transitions, 703 flow. Second operand has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:30,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:29:30,407 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 164 [2021-04-29 00:29:30,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:29:31,644 INFO L129 PetriNetUnfolder]: 2623/6110 cut-off events. [2021-04-29 00:29:31,645 INFO L130 PetriNetUnfolder]: For 11951/119991 co-relation queries the response was YES. [2021-04-29 00:29:31,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31664 conditions, 6110 events. 2623/6110 cut-off events. For 11951/119991 co-relation queries the response was YES. Maximal size of possible extension queue 1875. Compared 69852 event pairs, 0 based on Foata normal form. 173/1832 useless extension candidates. Maximal degree in co-relation 31640. Up to 5517 conditions per place. [2021-04-29 00:29:31,728 INFO L132 encePairwiseOnDemand]: 146/164 looper letters, 5 selfloop transitions, 70 changer transitions 19/113 dead transitions. [2021-04-29 00:29:31,728 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 113 transitions, 1019 flow [2021-04-29 00:29:31,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 00:29:31,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 00:29:31,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1022 transitions. [2021-04-29 00:29:31,733 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6924119241192412 [2021-04-29 00:29:31,733 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1022 transitions. [2021-04-29 00:29:31,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1022 transitions. [2021-04-29 00:29:31,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:29:31,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1022 transitions. [2021-04-29 00:29:31,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 113.55555555555556) internal successors, (1022), 9 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:31,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 164.0) internal successors, (1640), 10 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:31,745 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 164.0) internal successors, (1640), 10 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:31,745 INFO L185 Difference]: Start difference. First operand has 67 places, 93 transitions, 703 flow. Second operand 9 states and 1022 transitions. [2021-04-29 00:29:31,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 113 transitions, 1019 flow [2021-04-29 00:29:32,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 113 transitions, 885 flow, removed 43 selfloop flow, removed 3 redundant places. [2021-04-29 00:29:32,550 INFO L241 Difference]: Finished difference. Result has 75 places, 92 transitions, 753 flow [2021-04-29 00:29:32,550 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=753, PETRI_PLACES=75, PETRI_TRANSITIONS=92} [2021-04-29 00:29:32,551 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -3 predicate places. [2021-04-29 00:29:32,551 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:29:32,551 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 92 transitions, 753 flow [2021-04-29 00:29:32,552 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 92 transitions, 753 flow [2021-04-29 00:29:32,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 92 transitions, 753 flow [2021-04-29 00:29:33,038 INFO L129 PetriNetUnfolder]: 1516/3977 cut-off events. [2021-04-29 00:29:33,039 INFO L130 PetriNetUnfolder]: For 12646/20441 co-relation queries the response was YES. [2021-04-29 00:29:33,070 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17238 conditions, 3977 events. 1516/3977 cut-off events. For 12646/20441 co-relation queries the response was YES. Maximal size of possible extension queue 1509. Compared 48168 event pairs, 0 based on Foata normal form. 7/1068 useless extension candidates. Maximal degree in co-relation 17213. Up to 3078 conditions per place. [2021-04-29 00:29:33,138 INFO L146 LiptonReduction]: Number of co-enabled transitions 1266 [2021-04-29 00:29:33,172 INFO L158 LiptonReduction]: Checked pairs total: 174 [2021-04-29 00:29:33,172 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:29:33,172 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 621 [2021-04-29 00:29:33,174 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 92 transitions, 753 flow [2021-04-29 00:29:33,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:33,174 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:29:33,174 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:29:33,175 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:29:33,175 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:29:33,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:29:33,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1951081723, now seen corresponding path program 1 times [2021-04-29 00:29:33,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:29:33,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320166260] [2021-04-29 00:29:33,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:29:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:29:33,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:33,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:29:33,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:33,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:29:33,268 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:29:33,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:29:33,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:29:33,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320166260] [2021-04-29 00:29:33,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:29:33,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:29:33,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450616176] [2021-04-29 00:29:33,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:29:33,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:29:33,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:29:33,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:29:33,282 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 164 [2021-04-29 00:29:33,282 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 92 transitions, 753 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:33,282 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:29:33,282 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 164 [2021-04-29 00:29:33,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:29:34,062 INFO L129 PetriNetUnfolder]: 2040/5325 cut-off events. [2021-04-29 00:29:34,062 INFO L130 PetriNetUnfolder]: For 27087/47035 co-relation queries the response was YES. [2021-04-29 00:29:34,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23131 conditions, 5325 events. 2040/5325 cut-off events. For 27087/47035 co-relation queries the response was YES. Maximal size of possible extension queue 1908. Compared 65350 event pairs, 0 based on Foata normal form. 44/1371 useless extension candidates. Maximal degree in co-relation 23104. Up to 4104 conditions per place. [2021-04-29 00:29:34,098 INFO L132 encePairwiseOnDemand]: 157/164 looper letters, 2 selfloop transitions, 5 changer transitions 55/98 dead transitions. [2021-04-29 00:29:34,098 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 98 transitions, 823 flow [2021-04-29 00:29:34,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:29:34,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:29:34,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 541 transitions. [2021-04-29 00:29:34,102 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6597560975609756 [2021-04-29 00:29:34,102 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 541 transitions. [2021-04-29 00:29:34,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 541 transitions. [2021-04-29 00:29:34,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:29:34,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 541 transitions. [2021-04-29 00:29:34,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:34,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:34,109 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:34,109 INFO L185 Difference]: Start difference. First operand has 72 places, 92 transitions, 753 flow. Second operand 5 states and 541 transitions. [2021-04-29 00:29:34,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 98 transitions, 823 flow [2021-04-29 00:29:35,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 98 transitions, 619 flow, removed 43 selfloop flow, removed 8 redundant places. [2021-04-29 00:29:35,954 INFO L241 Difference]: Finished difference. Result has 69 places, 43 transitions, 238 flow [2021-04-29 00:29:35,955 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=238, PETRI_PLACES=69, PETRI_TRANSITIONS=43} [2021-04-29 00:29:35,955 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -9 predicate places. [2021-04-29 00:29:35,955 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:29:35,956 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 43 transitions, 238 flow [2021-04-29 00:29:35,956 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 43 transitions, 238 flow [2021-04-29 00:29:35,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 43 transitions, 238 flow [2021-04-29 00:29:35,979 INFO L129 PetriNetUnfolder]: 81/212 cut-off events. [2021-04-29 00:29:35,979 INFO L130 PetriNetUnfolder]: For 676/679 co-relation queries the response was YES. [2021-04-29 00:29:35,980 INFO L84 FinitePrefix]: Finished finitePrefix Result has 727 conditions, 212 events. 81/212 cut-off events. For 676/679 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1169 event pairs, 0 based on Foata normal form. 1/110 useless extension candidates. Maximal degree in co-relation 704. Up to 109 conditions per place. [2021-04-29 00:29:35,983 INFO L146 LiptonReduction]: Number of co-enabled transitions 244 [2021-04-29 00:29:36,035 INFO L158 LiptonReduction]: Checked pairs total: 7 [2021-04-29 00:29:36,036 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 00:29:36,036 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 81 [2021-04-29 00:29:36,038 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 241 flow [2021-04-29 00:29:36,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:36,039 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:29:36,039 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:29:36,039 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:29:36,040 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:29:36,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:29:36,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1757494124, now seen corresponding path program 1 times [2021-04-29 00:29:36,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:29:36,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380893205] [2021-04-29 00:29:36,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:29:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:29:36,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:36,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:29:36,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:36,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:29:36,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:36,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:29:36,109 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:29:36,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:29:36,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:29:36,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380893205] [2021-04-29 00:29:36,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:29:36,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:29:36,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666310393] [2021-04-29 00:29:36,127 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:29:36,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:29:36,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:29:36,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:29:36,129 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 165 [2021-04-29 00:29:36,130 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 241 flow. Second operand has 5 states, 5 states have (on average 113.2) internal successors, (566), 5 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) [2021-04-29 00:29:36,130 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:29:36,130 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 165 [2021-04-29 00:29:36,131 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:29:36,173 INFO L129 PetriNetUnfolder]: 81/185 cut-off events. [2021-04-29 00:29:36,173 INFO L130 PetriNetUnfolder]: For 876/881 co-relation queries the response was YES. [2021-04-29 00:29:36,174 INFO L84 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 185 events. 81/185 cut-off events. For 876/881 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 839 event pairs, 0 based on Foata normal form. 29/110 useless extension candidates. Maximal degree in co-relation 503. Up to 109 conditions per place. [2021-04-29 00:29:36,175 INFO L132 encePairwiseOnDemand]: 160/165 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2021-04-29 00:29:36,175 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 42 transitions, 235 flow [2021-04-29 00:29:36,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:29:36,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:29:36,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 678 transitions. [2021-04-29 00:29:36,179 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6848484848484848 [2021-04-29 00:29:36,179 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 678 transitions. [2021-04-29 00:29:36,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 678 transitions. [2021-04-29 00:29:36,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:29:36,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 678 transitions. [2021-04-29 00:29:36,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:36,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:36,189 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:36,189 INFO L185 Difference]: Start difference. First operand has 55 places, 43 transitions, 241 flow. Second operand 6 states and 678 transitions. [2021-04-29 00:29:36,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 42 transitions, 235 flow [2021-04-29 00:29:36,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 42 transitions, 209 flow, removed 1 selfloop flow, removed 10 redundant places. [2021-04-29 00:29:36,193 INFO L241 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2021-04-29 00:29:36,193 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2021-04-29 00:29:36,194 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -29 predicate places. [2021-04-29 00:29:36,194 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:29:36,194 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 0 transitions, 0 flow [2021-04-29 00:29:36,195 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 0 transitions, 0 flow [2021-04-29 00:29:36,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:29:36,195 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:29:36,195 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:29:36,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 00:29:36,196 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:29:36,196 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:29:36,196 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:29:36,197 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3 [2021-04-29 00:29:36,199 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:29:36,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 113.2) internal successors, (566), 5 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) [2021-04-29 00:29:36,200 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 00:29:36,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:29:36 BasicIcfg [2021-04-29 00:29:36,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:29:36,209 INFO L168 Benchmark]: Toolchain (without parser) took 26318.14 ms. Allocated memory was 302.0 MB in the beginning and 553.6 MB in the end (delta: 251.7 MB). Free memory was 276.3 MB in the beginning and 249.9 MB in the end (delta: 26.3 MB). Peak memory consumption was 279.2 MB. Max. memory is 16.0 GB. [2021-04-29 00:29:36,210 INFO L168 Benchmark]: CDTParser took 1.07 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 271.8 MB in the end (delta: 115.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:29:36,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1094.38 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 279.2 MB in the end (delta: -6.2 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.0 GB. [2021-04-29 00:29:36,212 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.91 ms. Allocated memory is still 302.0 MB. Free memory was 279.2 MB in the beginning and 277.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:29:36,216 INFO L168 Benchmark]: Boogie Preprocessor took 33.81 ms. Allocated memory is still 302.0 MB. Free memory was 277.1 MB in the beginning and 276.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:29:36,217 INFO L168 Benchmark]: RCFGBuilder took 579.25 ms. Allocated memory is still 302.0 MB. Free memory was 276.1 MB in the beginning and 252.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:29:36,217 INFO L168 Benchmark]: TraceAbstraction took 24467.23 ms. Allocated memory was 302.0 MB in the beginning and 553.6 MB in the end (delta: 251.7 MB). Free memory was 252.0 MB in the beginning and 249.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 256.8 MB. Max. memory is 16.0 GB. [2021-04-29 00:29:36,223 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.07 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 271.8 MB in the end (delta: 115.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1094.38 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 279.2 MB in the end (delta: -6.2 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 61.91 ms. Allocated memory is still 302.0 MB. Free memory was 279.2 MB in the beginning and 277.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.81 ms. Allocated memory is still 302.0 MB. Free memory was 277.1 MB in the beginning and 276.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 579.25 ms. Allocated memory is still 302.0 MB. Free memory was 276.1 MB in the beginning and 252.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 24467.23 ms. Allocated memory was 302.0 MB in the beginning and 553.6 MB in the end (delta: 251.7 MB). Free memory was 252.0 MB in the beginning and 249.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 256.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11246.6ms, 67 PlacesBefore, 78 PlacesAfterwards, 58 TransitionsBefore, 68 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 TotalNumberOfCompositions, 5914 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1873, positive: 1689, positive conditional: 1689, positive unconditional: 0, negative: 184, negative conditional: 184, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 920, positive: 868, positive conditional: 0, positive unconditional: 868, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 920, positive: 868, positive conditional: 0, positive unconditional: 868, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 920, positive: 857, positive conditional: 0, positive unconditional: 857, negative: 63, negative conditional: 0, negative unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 63, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 438, positive: 88, positive conditional: 0, positive unconditional: 88, negative: 350, negative conditional: 0, negative unconditional: 350, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1873, positive: 821, positive conditional: 821, positive unconditional: 0, negative: 132, negative conditional: 132, negative unconditional: 0, unknown: 920, unknown conditional: 920, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 910, Positive cache size: 858, Positive conditional cache size: 858, Positive unconditional cache size: 0, Negative cache size: 52, Negative conditional cache size: 52, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.5ms, 79 PlacesBefore, 47 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 834 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 81 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 1, positive unconditional: 2, 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: 4, positive: 3, positive conditional: 1, positive unconditional: 2, 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: 4, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 27, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 914, Positive cache size: 861, Positive conditional cache size: 861, Positive unconditional cache size: 0, Negative cache size: 53, Negative conditional cache size: 53, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.5ms, 51 PlacesBefore, 50 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 844 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 109 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 37, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 916, Positive cache size: 863, Positive conditional cache size: 863, Positive unconditional cache size: 0, Negative cache size: 53, Negative conditional cache size: 53, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.4ms, 54 PlacesBefore, 54 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 824 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 103 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 34, positive: 30, positive conditional: 30, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 34, positive: 29, positive conditional: 29, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 917, Positive cache size: 864, Positive conditional cache size: 864, Positive unconditional cache size: 0, Negative cache size: 53, Negative conditional cache size: 53, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1171.0ms, 58 PlacesBefore, 58 PlacesAfterwards, 67 TransitionsBefore, 67 TransitionsAfterwards, 1046 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 141 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 39, positive: 36, positive conditional: 36, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 3, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 3, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, 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: 39, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 925, Positive cache size: 872, Positive conditional cache size: 872, Positive unconditional cache size: 0, Negative cache size: 53, Negative conditional cache size: 53, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1074.5ms, 67 PlacesBefore, 67 PlacesAfterwards, 93 TransitionsBefore, 93 TransitionsAfterwards, 1308 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 183 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 144, positive: 141, positive conditional: 141, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35, positive: 35, positive conditional: 27, positive unconditional: 8, 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: 35, positive: 35, positive conditional: 27, positive unconditional: 8, 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: 35, positive: 35, positive conditional: 0, positive unconditional: 35, 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: 144, positive: 106, positive conditional: 106, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 35, unknown conditional: 35, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 960, Positive cache size: 907, Positive conditional cache size: 907, Positive unconditional cache size: 0, Negative cache size: 53, Negative conditional cache size: 53, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 620.3ms, 75 PlacesBefore, 72 PlacesAfterwards, 92 TransitionsBefore, 92 TransitionsAfterwards, 1266 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 174 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 108, positive: 105, positive conditional: 105, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 23, positive conditional: 23, 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: 23, positive: 23, positive conditional: 23, 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: 23, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 108, positive: 82, positive conditional: 82, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 983, Positive cache size: 930, Positive conditional cache size: 930, Positive unconditional cache size: 0, Negative cache size: 53, Negative conditional cache size: 53, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 79.9ms, 69 PlacesBefore, 55 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 244 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 7 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 7, 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: 7, positive: 7, positive conditional: 7, 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: 7, positive: 7, positive conditional: 7, 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: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 990, Positive cache size: 937, Positive conditional cache size: 937, Positive unconditional cache size: 0, Negative cache size: 53, Negative conditional cache size: 53, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8ms, 49 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): 990, Positive cache size: 937, Positive conditional cache size: 937, Positive unconditional cache size: 0, Negative cache size: 53, Negative conditional cache size: 53, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 22.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 24314.7ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 8500.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11418.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 71 SDtfs, 70 SDslu, 24 SDs, 0 SdLazy, 326 SolverSat, 136 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 509.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 210.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=753occurred in iteration=6, InterpolantAutomatonStates: 43, 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: 29.9ms SsaConstructionTime, 276.6ms SatisfiabilityAnalysisTime, 670.2ms InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 402 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...