/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 05:10:06,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 05:10:06,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 05:10:06,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 05:10:06,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 05:10:06,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 05:10:06,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 05:10:06,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 05:10:06,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 05:10:06,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 05:10:06,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 05:10:06,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 05:10:06,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 05:10:06,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 05:10:06,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 05:10:06,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 05:10:06,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 05:10:06,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 05:10:06,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 05:10:06,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 05:10:06,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 05:10:06,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 05:10:06,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 05:10:06,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 05:10:06,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 05:10:06,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 05:10:06,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 05:10:06,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 05:10:06,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 05:10:06,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 05:10:06,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 05:10:06,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 05:10:06,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 05:10:06,128 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 05:10:06,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 05:10:06,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 05:10:06,129 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-RepeatedVariableLbe.epf [2021-03-25 05:10:06,154 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 05:10:06,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 05:10:06,157 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 05:10:06,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 05:10:06,157 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 05:10:06,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 05:10:06,158 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 05:10:06,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 05:10:06,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 05:10:06,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 05:10:06,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 05:10:06,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 05:10:06,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 05:10:06,159 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 05:10:06,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 05:10:06,159 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 05:10:06,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 05:10:06,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 05:10:06,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 05:10:06,159 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 05:10:06,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 05:10:06,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 05:10:06,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 05:10:06,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 05:10:06,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 05:10:06,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 05:10:06,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 05:10:06,160 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 05:10:06,160 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 05:10:06,160 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 05:10:06,160 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 05:10:06,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 05:10:06,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 05:10:06,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 05:10:06,401 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 05:10:06,402 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 05:10:06,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2021-03-25 05:10:06,446 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a378ca85/e7b4eeccff7246baaa593579345950c3/FLAG11cc7ac4d [2021-03-25 05:10:06,879 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 05:10:06,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2021-03-25 05:10:06,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a378ca85/e7b4eeccff7246baaa593579345950c3/FLAG11cc7ac4d [2021-03-25 05:10:06,901 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a378ca85/e7b4eeccff7246baaa593579345950c3 [2021-03-25 05:10:06,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 05:10:06,904 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 05:10:06,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 05:10:06,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 05:10:06,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 05:10:06,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:10:06" (1/1) ... [2021-03-25 05:10:06,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75518b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:10:06, skipping insertion in model container [2021-03-25 05:10:06,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:10:06" (1/1) ... [2021-03-25 05:10:06,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 05:10:06,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 05:10:07,081 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/safe032_tso.oepc.i[950,963] [2021-03-25 05:10:07,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:10:07,178 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 05:10:07,189 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/safe032_tso.oepc.i[950,963] [2021-03-25 05:10:07,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:10:07,255 INFO L208 MainTranslator]: Completed translation [2021-03-25 05:10:07,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:10:07 WrapperNode [2021-03-25 05:10:07,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 05:10:07,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 05:10:07,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 05:10:07,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 05:10:07,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:10:07" (1/1) ... [2021-03-25 05:10:07,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:10:07" (1/1) ... [2021-03-25 05:10:07,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 05:10:07,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 05:10:07,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 05:10:07,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 05:10:07,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:10:07" (1/1) ... [2021-03-25 05:10:07,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:10:07" (1/1) ... [2021-03-25 05:10:07,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:10:07" (1/1) ... [2021-03-25 05:10:07,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:10:07" (1/1) ... [2021-03-25 05:10:07,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:10:07" (1/1) ... [2021-03-25 05:10:07,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:10:07" (1/1) ... [2021-03-25 05:10:07,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:10:07" (1/1) ... [2021-03-25 05:10:07,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 05:10:07,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 05:10:07,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 05:10:07,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 05:10:07,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:10:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 05:10:07,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 05:10:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 05:10:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 05:10:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 05:10:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 05:10:07,363 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 05:10:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 05:10:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 05:10:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 05:10:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 05:10:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 05:10:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 05:10:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 05:10:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 05:10:07,365 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 05:10:07,607 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 05:10:07,607 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-25 05:10:07,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:10:07 BoogieIcfgContainer [2021-03-25 05:10:07,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 05:10:07,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 05:10:07,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 05:10:07,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 05:10:07,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 05:10:06" (1/3) ... [2021-03-25 05:10:07,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5617d7be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:10:07, skipping insertion in model container [2021-03-25 05:10:07,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:10:07" (2/3) ... [2021-03-25 05:10:07,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5617d7be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:10:07, skipping insertion in model container [2021-03-25 05:10:07,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:10:07" (3/3) ... [2021-03-25 05:10:07,613 INFO L111 eAbstractionObserver]: Analyzing ICFG safe032_tso.oepc.i [2021-03-25 05:10:07,620 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 05:10:07,622 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 05:10:07,623 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 05:10:07,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,656 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,657 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,658 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,659 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,659 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,659 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,660 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,661 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,661 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,661 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,661 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,662 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,662 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,662 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,663 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,664 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,664 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,665 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,665 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,668 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,669 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,673 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,673 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,673 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,673 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:10:07,678 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 05:10:07,691 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-25 05:10:07,712 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 05:10:07,713 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 05:10:07,713 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 05:10:07,713 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 05:10:07,713 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 05:10:07,713 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 05:10:07,713 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 05:10:07,713 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 05:10:07,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-03-25 05:10:07,765 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-03-25 05:10:07,765 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:10:07,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-25 05:10:07,773 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-03-25 05:10:07,779 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-03-25 05:10:07,780 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:10:07,786 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-25 05:10:07,788 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-25 05:10:07,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-03-25 05:10:07,808 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-03-25 05:10:07,808 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:10:07,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-25 05:10:07,811 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-25 05:10:08,873 INFO L154 LiptonReduction]: Checked pairs total: 972 [2021-03-25 05:10:08,873 INFO L156 LiptonReduction]: Total number of compositions: 37 [2021-03-25 05:10:08,874 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1095 [2021-03-25 05:10:08,880 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-25 05:10:08,880 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:10:08,880 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:10:08,881 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:10:08,881 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:10:08,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:10:08,884 INFO L82 PathProgramCache]: Analyzing trace with hash -31453366, now seen corresponding path program 1 times [2021-03-25 05:10:08,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:10:08,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518765072] [2021-03-25 05:10:08,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:10:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:10:09,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:10:09,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:10:09,036 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 05:10:09,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:10:09,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:10:09,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518765072] [2021-03-25 05:10:09,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:10:09,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:10:09,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518021273] [2021-03-25 05:10:09,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:10:09,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:10:09,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:10:09,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:10:09,059 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 111 [2021-03-25 05:10:09,060 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:09,060 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:10:09,060 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 111 [2021-03-25 05:10:09,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:10:09,096 INFO L129 PetriNetUnfolder]: 91/214 cut-off events. [2021-03-25 05:10:09,096 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:10:09,096 INFO L84 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 214 events. 91/214 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 925 event pairs, 31 based on Foata normal form. 10/210 useless extension candidates. Maximal degree in co-relation 378. Up to 114 conditions per place. [2021-03-25 05:10:09,098 INFO L132 encePairwiseOnDemand]: 103/111 looper letters, 8 selfloop transitions, 7 changer transitions 0/28 dead transitions. [2021-03-25 05:10:09,098 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 28 transitions, 95 flow [2021-03-25 05:10:09,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:10:09,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:10:09,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 274 transitions. [2021-03-25 05:10:09,111 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8228228228228228 [2021-03-25 05:10:09,111 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 274 transitions. [2021-03-25 05:10:09,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 274 transitions. [2021-03-25 05:10:09,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:10:09,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 274 transitions. [2021-03-25 05:10:09,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:09,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:09,121 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:09,122 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 53 flow. Second operand 3 states and 274 transitions. [2021-03-25 05:10:09,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 28 transitions, 95 flow [2021-03-25 05:10:09,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 28 transitions, 92 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 05:10:09,125 INFO L241 Difference]: Finished difference. Result has 33 places, 28 transitions, 104 flow [2021-03-25 05:10:09,126 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=33, PETRI_TRANSITIONS=28} [2021-03-25 05:10:09,127 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2021-03-25 05:10:09,127 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:10:09,127 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 28 transitions, 104 flow [2021-03-25 05:10:09,127 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 28 transitions, 104 flow [2021-03-25 05:10:09,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 28 transitions, 104 flow [2021-03-25 05:10:09,138 INFO L129 PetriNetUnfolder]: 91/208 cut-off events. [2021-03-25 05:10:09,138 INFO L130 PetriNetUnfolder]: For 41/45 co-relation queries the response was YES. [2021-03-25 05:10:09,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 466 conditions, 208 events. 91/208 cut-off events. For 41/45 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 956 event pairs, 29 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 454. Up to 113 conditions per place. [2021-03-25 05:10:09,140 INFO L142 LiptonReduction]: Number of co-enabled transitions 194 [2021-03-25 05:10:09,479 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-25 05:10:09,630 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-25 05:10:09,707 INFO L154 LiptonReduction]: Checked pairs total: 162 [2021-03-25 05:10:09,707 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-25 05:10:09,707 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 580 [2021-03-25 05:10:09,708 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 94 flow [2021-03-25 05:10:09,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:09,709 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:10:09,709 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:10:09,709 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 05:10:09,709 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:10:09,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:10:09,718 INFO L82 PathProgramCache]: Analyzing trace with hash -975054877, now seen corresponding path program 1 times [2021-03-25 05:10:09,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:10:09,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094429735] [2021-03-25 05:10:09,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:10:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:10:09,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:10:09,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:10:09,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:10:09,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:10:09,794 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 05:10:09,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:10:09,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:10:09,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094429735] [2021-03-25 05:10:09,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:10:09,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:10:09,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083703903] [2021-03-25 05:10:09,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:10:09,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:10:09,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:10:09,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:10:09,803 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 116 [2021-03-25 05:10:09,804 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:09,804 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:10:09,804 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 116 [2021-03-25 05:10:09,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:10:09,835 INFO L129 PetriNetUnfolder]: 85/196 cut-off events. [2021-03-25 05:10:09,835 INFO L130 PetriNetUnfolder]: For 59/116 co-relation queries the response was YES. [2021-03-25 05:10:09,835 INFO L84 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 196 events. 85/196 cut-off events. For 59/116 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 854 event pairs, 10 based on Foata normal form. 3/196 useless extension candidates. Maximal degree in co-relation 588. Up to 108 conditions per place. [2021-03-25 05:10:09,836 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 9 selfloop transitions, 11 changer transitions 0/29 dead transitions. [2021-03-25 05:10:09,836 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 29 transitions, 166 flow [2021-03-25 05:10:09,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:10:09,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:10:09,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-03-25 05:10:09,838 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7995689655172413 [2021-03-25 05:10:09,838 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-03-25 05:10:09,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-03-25 05:10:09,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:10:09,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-03-25 05:10:09,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:09,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:09,841 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:09,841 INFO L185 Difference]: Start difference. First operand has 28 places, 23 transitions, 94 flow. Second operand 4 states and 371 transitions. [2021-03-25 05:10:09,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 29 transitions, 166 flow [2021-03-25 05:10:09,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 29 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 05:10:09,843 INFO L241 Difference]: Finished difference. Result has 32 places, 29 transitions, 158 flow [2021-03-25 05:10:09,843 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=158, PETRI_PLACES=32, PETRI_TRANSITIONS=29} [2021-03-25 05:10:09,843 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2021-03-25 05:10:09,843 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:10:09,844 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 29 transitions, 158 flow [2021-03-25 05:10:09,844 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 29 transitions, 158 flow [2021-03-25 05:10:09,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 29 transitions, 158 flow [2021-03-25 05:10:09,854 INFO L129 PetriNetUnfolder]: 85/197 cut-off events. [2021-03-25 05:10:09,854 INFO L130 PetriNetUnfolder]: For 153/177 co-relation queries the response was YES. [2021-03-25 05:10:09,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 553 conditions, 197 events. 85/197 cut-off events. For 153/177 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 891 event pairs, 11 based on Foata normal form. 1/194 useless extension candidates. Maximal degree in co-relation 541. Up to 108 conditions per place. [2021-03-25 05:10:09,856 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-25 05:10:09,858 INFO L154 LiptonReduction]: Checked pairs total: 14 [2021-03-25 05:10:09,858 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:10:09,858 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-25 05:10:09,859 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 29 transitions, 158 flow [2021-03-25 05:10:09,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:09,859 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:10:09,859 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:10:09,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 05:10:09,859 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:10:09,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:10:09,860 INFO L82 PathProgramCache]: Analyzing trace with hash 657457596, now seen corresponding path program 1 times [2021-03-25 05:10:09,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:10:09,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861624671] [2021-03-25 05:10:09,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:10:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:10:09,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:10:09,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:10:09,887 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 05:10:09,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:10:09,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:10:09,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861624671] [2021-03-25 05:10:09,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:10:09,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:10:09,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560105136] [2021-03-25 05:10:09,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:10:09,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:10:09,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:10:09,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:10:09,895 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 116 [2021-03-25 05:10:09,895 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:09,895 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:10:09,896 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 116 [2021-03-25 05:10:09,896 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:10:09,923 INFO L129 PetriNetUnfolder]: 72/171 cut-off events. [2021-03-25 05:10:09,924 INFO L130 PetriNetUnfolder]: For 165/252 co-relation queries the response was YES. [2021-03-25 05:10:09,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 171 events. 72/171 cut-off events. For 165/252 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 709 event pairs, 4 based on Foata normal form. 14/185 useless extension candidates. Maximal degree in co-relation 605. Up to 98 conditions per place. [2021-03-25 05:10:09,925 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 14 selfloop transitions, 15 changer transitions 0/38 dead transitions. [2021-03-25 05:10:09,925 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 38 transitions, 280 flow [2021-03-25 05:10:09,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:10:09,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:10:09,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-03-25 05:10:09,927 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7995689655172413 [2021-03-25 05:10:09,927 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-03-25 05:10:09,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-03-25 05:10:09,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:10:09,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-03-25 05:10:09,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:09,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:09,931 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:09,931 INFO L185 Difference]: Start difference. First operand has 32 places, 29 transitions, 158 flow. Second operand 4 states and 371 transitions. [2021-03-25 05:10:09,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 38 transitions, 280 flow [2021-03-25 05:10:09,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 38 transitions, 280 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 05:10:09,935 INFO L241 Difference]: Finished difference. Result has 38 places, 36 transitions, 282 flow [2021-03-25 05:10:09,936 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=282, PETRI_PLACES=38, PETRI_TRANSITIONS=36} [2021-03-25 05:10:09,936 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 6 predicate places. [2021-03-25 05:10:09,936 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:10:09,936 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 36 transitions, 282 flow [2021-03-25 05:10:09,937 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 36 transitions, 282 flow [2021-03-25 05:10:09,937 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 36 transitions, 282 flow [2021-03-25 05:10:09,949 INFO L129 PetriNetUnfolder]: 72/169 cut-off events. [2021-03-25 05:10:09,949 INFO L130 PetriNetUnfolder]: For 404/433 co-relation queries the response was YES. [2021-03-25 05:10:09,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 647 conditions, 169 events. 72/169 cut-off events. For 404/433 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 717 event pairs, 10 based on Foata normal form. 2/170 useless extension candidates. Maximal degree in co-relation 630. Up to 98 conditions per place. [2021-03-25 05:10:09,950 INFO L142 LiptonReduction]: Number of co-enabled transitions 180 [2021-03-25 05:10:09,955 INFO L154 LiptonReduction]: Checked pairs total: 75 [2021-03-25 05:10:09,955 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:10:09,955 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-25 05:10:09,957 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 36 transitions, 282 flow [2021-03-25 05:10:09,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:09,957 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:10:09,958 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:10:09,958 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 05:10:09,958 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:10:09,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:10:09,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1671069041, now seen corresponding path program 1 times [2021-03-25 05:10:09,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:10:09,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818158271] [2021-03-25 05:10:09,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:10:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:10:09,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:10:09,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:10:09,992 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 05:10:09,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:10:09,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:10:09,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818158271] [2021-03-25 05:10:09,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:10:09,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:10:09,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342533467] [2021-03-25 05:10:09,999 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:10:09,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:10:10,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:10:10,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:10:10,000 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 116 [2021-03-25 05:10:10,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 36 transitions, 282 flow. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,001 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:10:10,001 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 116 [2021-03-25 05:10:10,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:10:10,028 INFO L129 PetriNetUnfolder]: 46/120 cut-off events. [2021-03-25 05:10:10,028 INFO L130 PetriNetUnfolder]: For 313/437 co-relation queries the response was YES. [2021-03-25 05:10:10,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 555 conditions, 120 events. 46/120 cut-off events. For 313/437 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 436 event pairs, 0 based on Foata normal form. 9/128 useless extension candidates. Maximal degree in co-relation 536. Up to 65 conditions per place. [2021-03-25 05:10:10,030 INFO L132 encePairwiseOnDemand]: 109/116 looper letters, 19 selfloop transitions, 11 changer transitions 9/48 dead transitions. [2021-03-25 05:10:10,031 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 48 transitions, 474 flow [2021-03-25 05:10:10,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:10:10,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:10:10,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2021-03-25 05:10:10,032 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7952586206896551 [2021-03-25 05:10:10,032 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 369 transitions. [2021-03-25 05:10:10,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 369 transitions. [2021-03-25 05:10:10,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:10:10,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 369 transitions. [2021-03-25 05:10:10,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,034 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,034 INFO L185 Difference]: Start difference. First operand has 38 places, 36 transitions, 282 flow. Second operand 4 states and 369 transitions. [2021-03-25 05:10:10,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 48 transitions, 474 flow [2021-03-25 05:10:10,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 48 transitions, 474 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 05:10:10,038 INFO L241 Difference]: Finished difference. Result has 44 places, 37 transitions, 350 flow [2021-03-25 05:10:10,038 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=350, PETRI_PLACES=44, PETRI_TRANSITIONS=37} [2021-03-25 05:10:10,038 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 12 predicate places. [2021-03-25 05:10:10,038 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:10:10,039 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 37 transitions, 350 flow [2021-03-25 05:10:10,039 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 37 transitions, 350 flow [2021-03-25 05:10:10,039 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 37 transitions, 350 flow [2021-03-25 05:10:10,048 INFO L129 PetriNetUnfolder]: 29/93 cut-off events. [2021-03-25 05:10:10,048 INFO L130 PetriNetUnfolder]: For 304/317 co-relation queries the response was YES. [2021-03-25 05:10:10,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 93 events. 29/93 cut-off events. For 304/317 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 366 event pairs, 2 based on Foata normal form. 2/95 useless extension candidates. Maximal degree in co-relation 393. Up to 47 conditions per place. [2021-03-25 05:10:10,049 INFO L142 LiptonReduction]: Number of co-enabled transitions 180 [2021-03-25 05:10:10,052 INFO L154 LiptonReduction]: Checked pairs total: 113 [2021-03-25 05:10:10,052 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:10:10,052 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-25 05:10:10,054 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 37 transitions, 350 flow [2021-03-25 05:10:10,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,054 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:10:10,054 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:10:10,054 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 05:10:10,054 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:10:10,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:10:10,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1205738782, now seen corresponding path program 1 times [2021-03-25 05:10:10,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:10:10,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571789220] [2021-03-25 05:10:10,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:10:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:10:10,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:10:10,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:10:10,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:10:10,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:10:10,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:10:10,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571789220] [2021-03-25 05:10:10,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:10:10,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:10:10,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844350213] [2021-03-25 05:10:10,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:10:10,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:10:10,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:10:10,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:10:10,101 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 116 [2021-03-25 05:10:10,103 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 37 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:10:10,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 116 [2021-03-25 05:10:10,105 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:10:10,126 INFO L129 PetriNetUnfolder]: 31/114 cut-off events. [2021-03-25 05:10:10,126 INFO L130 PetriNetUnfolder]: For 454/512 co-relation queries the response was YES. [2021-03-25 05:10:10,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 114 events. 31/114 cut-off events. For 454/512 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 486 event pairs, 1 based on Foata normal form. 9/122 useless extension candidates. Maximal degree in co-relation 512. Up to 60 conditions per place. [2021-03-25 05:10:10,128 INFO L132 encePairwiseOnDemand]: 113/116 looper letters, 12 selfloop transitions, 6 changer transitions 5/42 dead transitions. [2021-03-25 05:10:10,128 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 454 flow [2021-03-25 05:10:10,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:10:10,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:10:10,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2021-03-25 05:10:10,129 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8735632183908046 [2021-03-25 05:10:10,129 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2021-03-25 05:10:10,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2021-03-25 05:10:10,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:10:10,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2021-03-25 05:10:10,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,131 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,131 INFO L185 Difference]: Start difference. First operand has 44 places, 37 transitions, 350 flow. Second operand 3 states and 304 transitions. [2021-03-25 05:10:10,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 454 flow [2021-03-25 05:10:10,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 448 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 05:10:10,134 INFO L241 Difference]: Finished difference. Result has 46 places, 34 transitions, 340 flow [2021-03-25 05:10:10,134 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=46, PETRI_TRANSITIONS=34} [2021-03-25 05:10:10,134 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 14 predicate places. [2021-03-25 05:10:10,134 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:10:10,134 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 34 transitions, 340 flow [2021-03-25 05:10:10,134 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 34 transitions, 340 flow [2021-03-25 05:10:10,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 34 transitions, 340 flow [2021-03-25 05:10:10,140 INFO L129 PetriNetUnfolder]: 21/76 cut-off events. [2021-03-25 05:10:10,140 INFO L130 PetriNetUnfolder]: For 330/350 co-relation queries the response was YES. [2021-03-25 05:10:10,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 76 events. 21/76 cut-off events. For 330/350 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 270 event pairs, 0 based on Foata normal form. 3/79 useless extension candidates. Maximal degree in co-relation 331. Up to 37 conditions per place. [2021-03-25 05:10:10,141 INFO L142 LiptonReduction]: Number of co-enabled transitions 170 [2021-03-25 05:10:10,143 INFO L154 LiptonReduction]: Checked pairs total: 125 [2021-03-25 05:10:10,143 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:10:10,143 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 05:10:10,143 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 34 transitions, 340 flow [2021-03-25 05:10:10,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,144 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:10:10,144 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:10:10,144 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 05:10:10,144 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:10:10,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:10:10,144 INFO L82 PathProgramCache]: Analyzing trace with hash 456380855, now seen corresponding path program 1 times [2021-03-25 05:10:10,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:10:10,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447363757] [2021-03-25 05:10:10,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:10:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:10:10,182 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-25 05:10:10,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:10:10,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:10:10,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:10:10,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:10:10,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447363757] [2021-03-25 05:10:10,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:10:10,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:10:10,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061686536] [2021-03-25 05:10:10,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:10:10,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:10:10,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:10:10,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:10:10,187 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 116 [2021-03-25 05:10:10,188 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 34 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,188 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:10:10,188 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 116 [2021-03-25 05:10:10,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:10:10,207 INFO L129 PetriNetUnfolder]: 50/138 cut-off events. [2021-03-25 05:10:10,207 INFO L130 PetriNetUnfolder]: For 395/408 co-relation queries the response was YES. [2021-03-25 05:10:10,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 138 events. 50/138 cut-off events. For 395/408 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 597 event pairs, 11 based on Foata normal form. 3/133 useless extension candidates. Maximal degree in co-relation 493. Up to 77 conditions per place. [2021-03-25 05:10:10,208 INFO L132 encePairwiseOnDemand]: 111/116 looper letters, 4 selfloop transitions, 4 changer transitions 0/37 dead transitions. [2021-03-25 05:10:10,208 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 37 transitions, 362 flow [2021-03-25 05:10:10,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:10:10,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:10:10,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2021-03-25 05:10:10,209 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8362068965517241 [2021-03-25 05:10:10,209 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 291 transitions. [2021-03-25 05:10:10,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 291 transitions. [2021-03-25 05:10:10,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:10:10,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 291 transitions. [2021-03-25 05:10:10,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,211 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,211 INFO L185 Difference]: Start difference. First operand has 46 places, 34 transitions, 340 flow. Second operand 3 states and 291 transitions. [2021-03-25 05:10:10,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 37 transitions, 362 flow [2021-03-25 05:10:10,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 351 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 05:10:10,213 INFO L241 Difference]: Finished difference. Result has 47 places, 37 transitions, 355 flow [2021-03-25 05:10:10,213 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=355, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2021-03-25 05:10:10,214 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 15 predicate places. [2021-03-25 05:10:10,214 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:10:10,214 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 37 transitions, 355 flow [2021-03-25 05:10:10,214 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 37 transitions, 355 flow [2021-03-25 05:10:10,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 37 transitions, 355 flow [2021-03-25 05:10:10,222 INFO L129 PetriNetUnfolder]: 51/142 cut-off events. [2021-03-25 05:10:10,222 INFO L130 PetriNetUnfolder]: For 382/417 co-relation queries the response was YES. [2021-03-25 05:10:10,222 INFO L84 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 142 events. 51/142 cut-off events. For 382/417 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 667 event pairs, 11 based on Foata normal form. 2/140 useless extension candidates. Maximal degree in co-relation 517. Up to 79 conditions per place. [2021-03-25 05:10:10,223 INFO L142 LiptonReduction]: Number of co-enabled transitions 176 [2021-03-25 05:10:10,225 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 05:10:10,225 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:10:10,225 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-25 05:10:10,227 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 355 flow [2021-03-25 05:10:10,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,227 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:10:10,227 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:10:10,227 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 05:10:10,227 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:10:10,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:10:10,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1262895375, now seen corresponding path program 1 times [2021-03-25 05:10:10,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:10:10,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725546494] [2021-03-25 05:10:10,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:10:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:10:10,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:10:10,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:10:10,270 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-25 05:10:10,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:10:10,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:10:10,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:10:10,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:10:10,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725546494] [2021-03-25 05:10:10,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:10:10,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:10:10,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537040583] [2021-03-25 05:10:10,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:10:10,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:10:10,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:10:10,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:10:10,276 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 116 [2021-03-25 05:10:10,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 355 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,276 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:10:10,276 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 116 [2021-03-25 05:10:10,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:10:10,296 INFO L129 PetriNetUnfolder]: 31/96 cut-off events. [2021-03-25 05:10:10,297 INFO L130 PetriNetUnfolder]: For 282/337 co-relation queries the response was YES. [2021-03-25 05:10:10,297 INFO L84 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 96 events. 31/96 cut-off events. For 282/337 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 319 event pairs, 1 based on Foata normal form. 28/122 useless extension candidates. Maximal degree in co-relation 420. Up to 44 conditions per place. [2021-03-25 05:10:10,298 INFO L132 encePairwiseOnDemand]: 111/116 looper letters, 3 selfloop transitions, 7 changer transitions 1/40 dead transitions. [2021-03-25 05:10:10,298 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 40 transitions, 389 flow [2021-03-25 05:10:10,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:10:10,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:10:10,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 388 transitions. [2021-03-25 05:10:10,300 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8362068965517241 [2021-03-25 05:10:10,300 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 388 transitions. [2021-03-25 05:10:10,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 388 transitions. [2021-03-25 05:10:10,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:10:10,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 388 transitions. [2021-03-25 05:10:10,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,302 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,302 INFO L185 Difference]: Start difference. First operand has 47 places, 37 transitions, 355 flow. Second operand 4 states and 388 transitions. [2021-03-25 05:10:10,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 40 transitions, 389 flow [2021-03-25 05:10:10,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 40 transitions, 380 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 05:10:10,305 INFO L241 Difference]: Finished difference. Result has 49 places, 39 transitions, 380 flow [2021-03-25 05:10:10,305 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=380, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2021-03-25 05:10:10,306 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 17 predicate places. [2021-03-25 05:10:10,306 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:10:10,306 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 39 transitions, 380 flow [2021-03-25 05:10:10,306 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 39 transitions, 380 flow [2021-03-25 05:10:10,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 39 transitions, 380 flow [2021-03-25 05:10:10,313 INFO L129 PetriNetUnfolder]: 29/95 cut-off events. [2021-03-25 05:10:10,314 INFO L130 PetriNetUnfolder]: For 281/306 co-relation queries the response was YES. [2021-03-25 05:10:10,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 95 events. 29/95 cut-off events. For 281/306 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 343 event pairs, 1 based on Foata normal form. 8/102 useless extension candidates. Maximal degree in co-relation 413. Up to 43 conditions per place. [2021-03-25 05:10:10,315 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-25 05:10:10,376 INFO L154 LiptonReduction]: Checked pairs total: 7 [2021-03-25 05:10:10,376 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:10:10,376 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 70 [2021-03-25 05:10:10,377 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 378 flow [2021-03-25 05:10:10,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,377 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:10:10,377 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:10:10,377 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 05:10:10,377 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:10:10,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:10:10,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1658357094, now seen corresponding path program 1 times [2021-03-25 05:10:10,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:10:10,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039668289] [2021-03-25 05:10:10,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:10:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:10:10,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:10:10,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:10:10,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:10:10,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:10:10,424 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-25 05:10:10,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:10:10,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:10:10,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:10:10,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:10:10,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039668289] [2021-03-25 05:10:10,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:10:10,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 05:10:10,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296607561] [2021-03-25 05:10:10,430 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 05:10:10,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:10:10,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 05:10:10,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 05:10:10,432 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 117 [2021-03-25 05:10:10,433 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 378 flow. Second operand has 5 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,433 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:10:10,433 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 117 [2021-03-25 05:10:10,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:10:10,461 INFO L129 PetriNetUnfolder]: 26/78 cut-off events. [2021-03-25 05:10:10,461 INFO L130 PetriNetUnfolder]: For 369/475 co-relation queries the response was YES. [2021-03-25 05:10:10,462 INFO L84 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 78 events. 26/78 cut-off events. For 369/475 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 241 event pairs, 0 based on Foata normal form. 35/111 useless extension candidates. Maximal degree in co-relation 377. Up to 31 conditions per place. [2021-03-25 05:10:10,462 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 0 selfloop transitions, 0 changer transitions 37/37 dead transitions. [2021-03-25 05:10:10,462 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 37 transitions, 382 flow [2021-03-25 05:10:10,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:10:10,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:10:10,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 480 transitions. [2021-03-25 05:10:10,463 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8205128205128205 [2021-03-25 05:10:10,463 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 480 transitions. [2021-03-25 05:10:10,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 480 transitions. [2021-03-25 05:10:10,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:10:10,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 480 transitions. [2021-03-25 05:10:10,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 96.0) internal successors, (480), 5 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,467 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,467 INFO L185 Difference]: Start difference. First operand has 48 places, 38 transitions, 378 flow. Second operand 5 states and 480 transitions. [2021-03-25 05:10:10,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 37 transitions, 382 flow [2021-03-25 05:10:10,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 37 transitions, 358 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-25 05:10:10,469 INFO L241 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2021-03-25 05:10:10,469 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2021-03-25 05:10:10,469 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 15 predicate places. [2021-03-25 05:10:10,469 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:10:10,469 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 0 transitions, 0 flow [2021-03-25 05:10:10,469 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 0 transitions, 0 flow [2021-03-25 05:10:10,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 05:10:10,469 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 05:10:10,469 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:10:10,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-25 05:10:10,470 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 05:10:10,470 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 05:10:10,470 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:10:10,470 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 05:10:10,470 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 05:10:10,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:10:10,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 05:10:10,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 05:10:10 BasicIcfg [2021-03-25 05:10:10,473 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 05:10:10,474 INFO L168 Benchmark]: Toolchain (without parser) took 3569.63 ms. Allocated memory was 388.0 MB in the beginning and 465.6 MB in the end (delta: 77.6 MB). Free memory was 351.6 MB in the beginning and 265.7 MB in the end (delta: 85.9 MB). Peak memory consumption was 165.1 MB. Max. memory is 16.0 GB. [2021-03-25 05:10:10,474 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 388.0 MB. Free memory was 369.7 MB in the beginning and 369.6 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 05:10:10,474 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.77 ms. Allocated memory is still 388.0 MB. Free memory was 351.4 MB in the beginning and 350.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.0 GB. [2021-03-25 05:10:10,474 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.06 ms. Allocated memory is still 388.0 MB. Free memory was 350.0 MB in the beginning and 347.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 05:10:10,475 INFO L168 Benchmark]: Boogie Preprocessor took 12.96 ms. Allocated memory is still 388.0 MB. Free memory was 347.9 MB in the beginning and 346.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 05:10:10,475 INFO L168 Benchmark]: RCFGBuilder took 308.58 ms. Allocated memory is still 388.0 MB. Free memory was 346.9 MB in the beginning and 321.7 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-25 05:10:10,475 INFO L168 Benchmark]: TraceAbstraction took 2863.91 ms. Allocated memory was 388.0 MB in the beginning and 465.6 MB in the end (delta: 77.6 MB). Free memory was 321.7 MB in the beginning and 265.7 MB in the end (delta: 56.0 MB). Peak memory consumption was 134.6 MB. Max. memory is 16.0 GB. [2021-03-25 05:10:10,476 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 388.0 MB. Free memory was 369.7 MB in the beginning and 369.6 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 346.77 ms. Allocated memory is still 388.0 MB. Free memory was 351.4 MB in the beginning and 350.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 29.06 ms. Allocated memory is still 388.0 MB. Free memory was 350.0 MB in the beginning and 347.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.96 ms. Allocated memory is still 388.0 MB. Free memory was 347.9 MB in the beginning and 346.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 308.58 ms. Allocated memory is still 388.0 MB. Free memory was 346.9 MB in the beginning and 321.7 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2863.91 ms. Allocated memory was 388.0 MB in the beginning and 465.6 MB in the end (delta: 77.6 MB). Free memory was 321.7 MB in the beginning and 265.7 MB in the end (delta: 56.0 MB). Peak memory consumption was 134.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1085.0ms, 68 PlacesBefore, 32 PlacesAfterwards, 59 TransitionsBefore, 22 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 37 TotalNumberOfCompositions, 972 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 544, positive: 512, positive conditional: 0, positive unconditional: 512, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 408, positive: 391, positive conditional: 0, positive unconditional: 391, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 408, positive: 391, positive conditional: 0, positive unconditional: 391, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 544, positive: 121, positive conditional: 0, positive unconditional: 121, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 408, unknown conditional: 0, unknown unconditional: 408] , Statistics on independence cache: Total cache size (in pairs): 38, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 579.8ms, 33 PlacesBefore, 28 PlacesAfterwards, 28 TransitionsBefore, 23 TransitionsAfterwards, 194 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 162 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 76, positive: 66, positive conditional: 0, positive unconditional: 66, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 23, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 76, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 23, unknown conditional: 0, unknown unconditional: 23] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.1ms, 32 PlacesBefore, 32 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 158 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 14 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , 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: 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] , Cache 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] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.6ms, 38 PlacesBefore, 38 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 75 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.3ms, 44 PlacesBefore, 44 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 113 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , Cache Queries: [ total: 12, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.7ms, 46 PlacesBefore, 46 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 170 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 125 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , Cache Queries: [ total: 17, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.3ms, 47 PlacesBefore, 47 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 176 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: 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] , 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): 39, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 70.1ms, 49 PlacesBefore, 48 PlacesAfterwards, 39 TransitionsBefore, 38 TransitionsAfterwards, 156 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: 0, positive unconditional: 7, 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: 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] , Cache 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] , Statistics on independence cache: Total cache size (in pairs): 26, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5ms, 47 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: 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] , 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): 26, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2762.0ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 323.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1164.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 46 SDtfs, 11 SDslu, 11 SDs, 0 SdLazy, 68 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 61.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 40.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=380occurred in iteration=7, InterpolantAutomatonStates: 30, 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: 17.0ms SsaConstructionTime, 97.1ms SatisfiabilityAnalysisTime, 301.1ms InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 451 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...