/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/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 05:08:12,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 05:08:12,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 05:08:12,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 05:08:12,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 05:08:12,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 05:08:12,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 05:08:12,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 05:08:12,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 05:08:12,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 05:08:12,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 05:08:12,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 05:08:12,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 05:08:12,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 05:08:12,925 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 05:08:12,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 05:08:12,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 05:08:12,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 05:08:12,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 05:08:12,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 05:08:12,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 05:08:12,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 05:08:12,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 05:08:12,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 05:08:12,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 05:08:12,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 05:08:12,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 05:08:12,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 05:08:12,961 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 05:08:12,997 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 05:08:12,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 05:08:13,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 05:08:13,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 05:08:13,001 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 05:08:13,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 05:08:13,002 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 05:08:13,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 05:08:13,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 05:08:13,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 05:08:13,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 05:08:13,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 05:08:13,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 05:08:13,003 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 05:08:13,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 05:08:13,004 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 05:08:13,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 05:08:13,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 05:08:13,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 05:08:13,004 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 05:08:13,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 05:08:13,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 05:08:13,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 05:08:13,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 05:08:13,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 05:08:13,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 05:08:13,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 05:08:13,005 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 05:08:13,005 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 05:08:13,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 05:08:13,006 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 05:08:13,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 05:08:13,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 05:08:13,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 05:08:13,308 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 05:08:13,308 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 05:08:13,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2021-03-25 05:08:13,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a9395597/cbfaee64be0244978755abf4dd169437/FLAG88417b6da [2021-03-25 05:08:13,909 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 05:08:13,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2021-03-25 05:08:13,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a9395597/cbfaee64be0244978755abf4dd169437/FLAG88417b6da [2021-03-25 05:08:14,225 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a9395597/cbfaee64be0244978755abf4dd169437 [2021-03-25 05:08:14,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 05:08:14,228 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 05:08:14,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 05:08:14,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 05:08:14,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 05:08:14,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:08:14" (1/1) ... [2021-03-25 05:08:14,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b076b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:14, skipping insertion in model container [2021-03-25 05:08:14,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:08:14" (1/1) ... [2021-03-25 05:08:14,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 05:08:14,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 05:08:14,423 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i[950,963] [2021-03-25 05:08:14,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:08:14,568 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 05:08:14,577 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i[950,963] [2021-03-25 05:08:14,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:08:14,653 INFO L208 MainTranslator]: Completed translation [2021-03-25 05:08:14,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:14 WrapperNode [2021-03-25 05:08:14,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 05:08:14,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 05:08:14,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 05:08:14,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 05:08:14,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:14" (1/1) ... [2021-03-25 05:08:14,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:14" (1/1) ... [2021-03-25 05:08:14,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 05:08:14,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 05:08:14,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 05:08:14,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 05:08:14,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:14" (1/1) ... [2021-03-25 05:08:14,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:14" (1/1) ... [2021-03-25 05:08:14,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:14" (1/1) ... [2021-03-25 05:08:14,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:14" (1/1) ... [2021-03-25 05:08:14,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:14" (1/1) ... [2021-03-25 05:08:14,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:14" (1/1) ... [2021-03-25 05:08:14,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:14" (1/1) ... [2021-03-25 05:08:14,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 05:08:14,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 05:08:14,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 05:08:14,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 05:08:14,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:14" (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 05:08:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 05:08:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 05:08:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 05:08:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 05:08:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 05:08:14,811 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 05:08:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 05:08:14,812 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 05:08:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 05:08:14,812 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 05:08:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 05:08:14,812 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 05:08:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 05:08:14,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 05:08:14,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 05:08:14,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 05:08:14,814 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 05:08:15,241 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 05:08:15,241 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-25 05:08:15,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:08:15 BoogieIcfgContainer [2021-03-25 05:08:15,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 05:08:15,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 05:08:15,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 05:08:15,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 05:08:15,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 05:08:14" (1/3) ... [2021-03-25 05:08:15,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2b7303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:08:15, skipping insertion in model container [2021-03-25 05:08:15,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:08:14" (2/3) ... [2021-03-25 05:08:15,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2b7303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:08:15, skipping insertion in model container [2021-03-25 05:08:15,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:08:15" (3/3) ... [2021-03-25 05:08:15,251 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2021-03-25 05:08:15,257 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 05:08:15,260 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 05:08:15,261 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 05:08:15,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,302 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,302 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,303 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,303 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,303 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,303 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,304 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,304 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,304 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,304 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,305 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,305 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,306 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,306 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,310 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,311 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,311 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,311 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,312 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,312 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,313 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,313 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,313 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,314 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,314 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,314 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,315 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,315 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,315 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,315 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,315 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,315 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,316 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,316 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,316 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,316 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,316 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,316 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,316 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,317 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,318 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,318 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,319 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,319 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,324 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,324 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,324 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,325 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,328 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,328 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,328 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,328 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,331 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,332 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,332 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,332 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:08:15,336 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 05:08:15,373 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-25 05:08:15,403 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 05:08:15,403 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 05:08:15,403 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 05:08:15,403 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 05:08:15,403 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 05:08:15,403 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 05:08:15,403 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 05:08:15,403 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 05:08:15,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 87 transitions, 194 flow [2021-03-25 05:08:15,466 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-03-25 05:08:15,466 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:08:15,471 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-25 05:08:15,472 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 87 transitions, 194 flow [2021-03-25 05:08:15,485 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 69 transitions, 150 flow [2021-03-25 05:08:15,486 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:15,495 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 69 transitions, 150 flow [2021-03-25 05:08:15,498 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 69 transitions, 150 flow [2021-03-25 05:08:15,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 69 transitions, 150 flow [2021-03-25 05:08:15,526 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2021-03-25 05:08:15,526 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:08:15,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-03-25 05:08:15,530 INFO L142 LiptonReduction]: Number of co-enabled transitions 1250 [2021-03-25 05:08:16,980 INFO L154 LiptonReduction]: Checked pairs total: 1387 [2021-03-25 05:08:16,980 INFO L156 LiptonReduction]: Total number of compositions: 44 [2021-03-25 05:08:16,982 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1497 [2021-03-25 05:08:16,990 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-25 05:08:16,991 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:08:16,992 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:16,993 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:16,993 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:17,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:17,002 INFO L82 PathProgramCache]: Analyzing trace with hash 654156635, now seen corresponding path program 1 times [2021-03-25 05:08:17,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:17,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961455785] [2021-03-25 05:08:17,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:17,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:17,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:08:17,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:17,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:17,306 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 05:08:17,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961455785] [2021-03-25 05:08:17,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:17,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:08:17,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614984764] [2021-03-25 05:08:17,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:08:17,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:17,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:08:17,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:08:17,327 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 131 [2021-03-25 05:08:17,329 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:17,329 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:17,329 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 131 [2021-03-25 05:08:17,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:17,344 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-25 05:08:17,344 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:08:17,345 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 25 events. 0/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 05:08:17,346 INFO L132 encePairwiseOnDemand]: 128/131 looper letters, 1 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2021-03-25 05:08:17,346 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 25 transitions, 68 flow [2021-03-25 05:08:17,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:08:17,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:08:17,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2021-03-25 05:08:17,361 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9185750636132316 [2021-03-25 05:08:17,362 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 361 transitions. [2021-03-25 05:08:17,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 361 transitions. [2021-03-25 05:08:17,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:17,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 361 transitions. [2021-03-25 05:08:17,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:17,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:17,384 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:17,386 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 62 flow. Second operand 3 states and 361 transitions. [2021-03-25 05:08:17,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 25 transitions, 68 flow [2021-03-25 05:08:17,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 25 transitions, 64 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 05:08:17,389 INFO L241 Difference]: Finished difference. Result has 37 places, 25 transitions, 66 flow [2021-03-25 05:08:17,391 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2021-03-25 05:08:17,392 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2021-03-25 05:08:17,392 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:17,392 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 25 transitions, 66 flow [2021-03-25 05:08:17,393 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 25 transitions, 66 flow [2021-03-25 05:08:17,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 25 transitions, 66 flow [2021-03-25 05:08:17,400 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-03-25 05:08:17,400 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 05:08:17,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 25 events. 0/25 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 05:08:17,401 INFO L142 LiptonReduction]: Number of co-enabled transitions 196 [2021-03-25 05:08:17,906 INFO L154 LiptonReduction]: Checked pairs total: 506 [2021-03-25 05:08:17,907 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 05:08:17,907 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 515 [2021-03-25 05:08:17,908 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 58 flow [2021-03-25 05:08:17,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:17,909 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:17,909 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:17,909 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 05:08:17,909 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:17,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:17,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1195981289, now seen corresponding path program 1 times [2021-03-25 05:08:17,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:17,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681976885] [2021-03-25 05:08:17,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:18,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:18,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:08:18,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:18,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:18,024 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 05:08:18,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:08:18,035 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 05:08:18,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681976885] [2021-03-25 05:08:18,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:18,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:08:18,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21337631] [2021-03-25 05:08:18,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:08:18,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:18,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:08:18,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:08:18,042 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 135 [2021-03-25 05:08:18,042 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:18,042 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:18,043 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 135 [2021-03-25 05:08:18,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:18,113 INFO L129 PetriNetUnfolder]: 38/102 cut-off events. [2021-03-25 05:08:18,113 INFO L130 PetriNetUnfolder]: For 24/84 co-relation queries the response was YES. [2021-03-25 05:08:18,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 102 events. 38/102 cut-off events. For 24/84 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 370 event pairs, 5 based on Foata normal form. 3/98 useless extension candidates. Maximal degree in co-relation 199. Up to 43 conditions per place. [2021-03-25 05:08:18,115 INFO L132 encePairwiseOnDemand]: 127/135 looper letters, 10 selfloop transitions, 12 changer transitions 0/35 dead transitions. [2021-03-25 05:08:18,116 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 35 transitions, 141 flow [2021-03-25 05:08:18,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:08:18,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:08:18,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 544 transitions. [2021-03-25 05:08:18,119 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8059259259259259 [2021-03-25 05:08:18,119 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 544 transitions. [2021-03-25 05:08:18,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 544 transitions. [2021-03-25 05:08:18,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:18,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 544 transitions. [2021-03-25 05:08:18,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:18,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:18,125 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:18,126 INFO L185 Difference]: Start difference. First operand has 33 places, 21 transitions, 58 flow. Second operand 5 states and 544 transitions. [2021-03-25 05:08:18,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 35 transitions, 141 flow [2021-03-25 05:08:18,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 35 transitions, 131 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 05:08:18,127 INFO L241 Difference]: Finished difference. Result has 38 places, 30 transitions, 136 flow [2021-03-25 05:08:18,128 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=136, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2021-03-25 05:08:18,128 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2021-03-25 05:08:18,128 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:18,129 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 30 transitions, 136 flow [2021-03-25 05:08:18,129 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 30 transitions, 136 flow [2021-03-25 05:08:18,129 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 30 transitions, 136 flow [2021-03-25 05:08:18,145 INFO L129 PetriNetUnfolder]: 23/86 cut-off events. [2021-03-25 05:08:18,146 INFO L130 PetriNetUnfolder]: For 42/79 co-relation queries the response was YES. [2021-03-25 05:08:18,146 INFO L84 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 86 events. 23/86 cut-off events. For 42/79 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 326 event pairs, 6 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 213. Up to 41 conditions per place. [2021-03-25 05:08:18,148 INFO L142 LiptonReduction]: Number of co-enabled transitions 274 [2021-03-25 05:08:18,325 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-03-25 05:08:18,568 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-03-25 05:08:18,652 INFO L154 LiptonReduction]: Checked pairs total: 136 [2021-03-25 05:08:18,653 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:08:18,653 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 525 [2021-03-25 05:08:18,653 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 132 flow [2021-03-25 05:08:18,654 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:18,654 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:18,654 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:18,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 05:08:18,654 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:18,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:18,655 INFO L82 PathProgramCache]: Analyzing trace with hash -806051131, now seen corresponding path program 1 times [2021-03-25 05:08:18,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:18,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380563493] [2021-03-25 05:08:18,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:18,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:18,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:08:18,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:18,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:18,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:18,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:18,709 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 05:08:18,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380563493] [2021-03-25 05:08:18,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:18,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:08:18,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249358775] [2021-03-25 05:08:18,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:08:18,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:18,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:08:18,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:08:18,714 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 136 [2021-03-25 05:08:18,714 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 132 flow. Second operand has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:18,714 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:18,714 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 136 [2021-03-25 05:08:18,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:18,752 INFO L129 PetriNetUnfolder]: 25/91 cut-off events. [2021-03-25 05:08:18,752 INFO L130 PetriNetUnfolder]: For 135/360 co-relation queries the response was YES. [2021-03-25 05:08:18,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 91 events. 25/91 cut-off events. For 135/360 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 386 event pairs, 4 based on Foata normal form. 8/96 useless extension candidates. Maximal degree in co-relation 258. Up to 41 conditions per place. [2021-03-25 05:08:18,755 INFO L132 encePairwiseOnDemand]: 132/136 looper letters, 4 selfloop transitions, 5 changer transitions 6/32 dead transitions. [2021-03-25 05:08:18,755 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 32 transitions, 177 flow [2021-03-25 05:08:18,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:08:18,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:08:18,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 462 transitions. [2021-03-25 05:08:18,756 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8492647058823529 [2021-03-25 05:08:18,756 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 462 transitions. [2021-03-25 05:08:18,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 462 transitions. [2021-03-25 05:08:18,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:18,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 462 transitions. [2021-03-25 05:08:18,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:18,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:18,759 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:18,759 INFO L185 Difference]: Start difference. First operand has 37 places, 29 transitions, 132 flow. Second operand 4 states and 462 transitions. [2021-03-25 05:08:18,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 32 transitions, 177 flow [2021-03-25 05:08:18,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 32 transitions, 169 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 05:08:18,762 INFO L241 Difference]: Finished difference. Result has 41 places, 24 transitions, 118 flow [2021-03-25 05:08:18,762 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=41, PETRI_TRANSITIONS=24} [2021-03-25 05:08:18,762 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2021-03-25 05:08:18,762 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:18,763 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 24 transitions, 118 flow [2021-03-25 05:08:18,763 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 24 transitions, 118 flow [2021-03-25 05:08:18,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 24 transitions, 118 flow [2021-03-25 05:08:18,768 INFO L129 PetriNetUnfolder]: 12/50 cut-off events. [2021-03-25 05:08:18,768 INFO L130 PetriNetUnfolder]: For 66/87 co-relation queries the response was YES. [2021-03-25 05:08:18,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 50 events. 12/50 cut-off events. For 66/87 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 143 event pairs, 7 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 138. Up to 26 conditions per place. [2021-03-25 05:08:18,770 INFO L142 LiptonReduction]: Number of co-enabled transitions 204 [2021-03-25 05:08:18,773 INFO L154 LiptonReduction]: Checked pairs total: 68 [2021-03-25 05:08:18,773 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:08:18,773 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-25 05:08:18,774 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 24 transitions, 118 flow [2021-03-25 05:08:18,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:18,775 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:18,775 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:18,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 05:08:18,775 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:18,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:18,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1424334782, now seen corresponding path program 1 times [2021-03-25 05:08:18,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:18,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675794964] [2021-03-25 05:08:18,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:18,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:18,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:18,841 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 05:08:18,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675794964] [2021-03-25 05:08:18,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:18,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 05:08:18,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562567488] [2021-03-25 05:08:18,842 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:08:18,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:18,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:08:18,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:08:18,843 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 136 [2021-03-25 05:08:18,844 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 24 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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 05:08:18,844 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:18,844 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 136 [2021-03-25 05:08:18,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:18,854 INFO L129 PetriNetUnfolder]: 9/44 cut-off events. [2021-03-25 05:08:18,854 INFO L130 PetriNetUnfolder]: For 111/140 co-relation queries the response was YES. [2021-03-25 05:08:18,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 44 events. 9/44 cut-off events. For 111/140 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 117 event pairs, 6 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 124. Up to 21 conditions per place. [2021-03-25 05:08:18,855 INFO L132 encePairwiseOnDemand]: 133/136 looper letters, 1 selfloop transitions, 4 changer transitions 0/24 dead transitions. [2021-03-25 05:08:18,855 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 24 transitions, 128 flow [2021-03-25 05:08:18,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:08:18,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:08:18,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-03-25 05:08:18,858 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8995098039215687 [2021-03-25 05:08:18,858 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-03-25 05:08:18,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-03-25 05:08:18,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:18,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-03-25 05:08:18,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:18,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:18,861 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:18,861 INFO L185 Difference]: Start difference. First operand has 41 places, 24 transitions, 118 flow. Second operand 3 states and 367 transitions. [2021-03-25 05:08:18,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 24 transitions, 128 flow [2021-03-25 05:08:18,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 24 transitions, 107 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-25 05:08:18,864 INFO L241 Difference]: Finished difference. Result has 39 places, 24 transitions, 111 flow [2021-03-25 05:08:18,864 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=111, PETRI_PLACES=39, PETRI_TRANSITIONS=24} [2021-03-25 05:08:18,864 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2021-03-25 05:08:18,864 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:18,864 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 24 transitions, 111 flow [2021-03-25 05:08:18,865 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 24 transitions, 111 flow [2021-03-25 05:08:18,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 24 transitions, 111 flow [2021-03-25 05:08:18,887 INFO L129 PetriNetUnfolder]: 9/45 cut-off events. [2021-03-25 05:08:18,887 INFO L130 PetriNetUnfolder]: For 28/43 co-relation queries the response was YES. [2021-03-25 05:08:18,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 45 events. 9/45 cut-off events. For 28/43 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 125 event pairs, 6 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 112. Up to 22 conditions per place. [2021-03-25 05:08:18,888 INFO L142 LiptonReduction]: Number of co-enabled transitions 204 [2021-03-25 05:08:18,913 INFO L154 LiptonReduction]: Checked pairs total: 165 [2021-03-25 05:08:18,914 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:08:18,914 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-25 05:08:18,914 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 24 transitions, 113 flow [2021-03-25 05:08:18,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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 05:08:18,914 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:18,915 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:18,915 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 05:08:18,915 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:18,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:18,915 INFO L82 PathProgramCache]: Analyzing trace with hash -279063604, now seen corresponding path program 1 times [2021-03-25 05:08:18,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:18,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124183356] [2021-03-25 05:08:18,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:18,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:18,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:18,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:18,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:18,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:18,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:08:18,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124183356] [2021-03-25 05:08:18,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:18,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:08:18,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488362078] [2021-03-25 05:08:18,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:08:18,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:18,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:08:18,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:08:18,949 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 137 [2021-03-25 05:08:18,949 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 24 transitions, 113 flow. Second operand has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:18,949 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:18,949 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 137 [2021-03-25 05:08:18,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:18,975 INFO L129 PetriNetUnfolder]: 18/72 cut-off events. [2021-03-25 05:08:18,975 INFO L130 PetriNetUnfolder]: For 194/268 co-relation queries the response was YES. [2021-03-25 05:08:18,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 72 events. 18/72 cut-off events. For 194/268 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 251 event pairs, 4 based on Foata normal form. 8/75 useless extension candidates. Maximal degree in co-relation 216. Up to 36 conditions per place. [2021-03-25 05:08:18,976 INFO L132 encePairwiseOnDemand]: 133/137 looper letters, 5 selfloop transitions, 5 changer transitions 5/31 dead transitions. [2021-03-25 05:08:18,976 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 31 transitions, 195 flow [2021-03-25 05:08:18,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:08:18,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:08:18,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 461 transitions. [2021-03-25 05:08:18,977 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8412408759124088 [2021-03-25 05:08:18,978 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 461 transitions. [2021-03-25 05:08:18,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 461 transitions. [2021-03-25 05:08:18,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:18,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 461 transitions. [2021-03-25 05:08:18,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:18,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 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 05:08:18,981 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 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 05:08:18,981 INFO L185 Difference]: Start difference. First operand has 39 places, 24 transitions, 113 flow. Second operand 4 states and 461 transitions. [2021-03-25 05:08:18,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 31 transitions, 195 flow [2021-03-25 05:08:18,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 31 transitions, 181 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 05:08:18,983 INFO L241 Difference]: Finished difference. Result has 42 places, 24 transitions, 125 flow [2021-03-25 05:08:18,983 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=125, PETRI_PLACES=42, PETRI_TRANSITIONS=24} [2021-03-25 05:08:18,983 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2021-03-25 05:08:18,983 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:18,984 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 24 transitions, 125 flow [2021-03-25 05:08:18,984 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 24 transitions, 125 flow [2021-03-25 05:08:18,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 24 transitions, 125 flow [2021-03-25 05:08:18,988 INFO L129 PetriNetUnfolder]: 9/43 cut-off events. [2021-03-25 05:08:18,989 INFO L130 PetriNetUnfolder]: For 38/40 co-relation queries the response was YES. [2021-03-25 05:08:18,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 43 events. 9/43 cut-off events. For 38/40 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 96 event pairs, 3 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 126. Up to 22 conditions per place. [2021-03-25 05:08:18,989 INFO L142 LiptonReduction]: Number of co-enabled transitions 128 [2021-03-25 05:08:18,991 INFO L154 LiptonReduction]: Checked pairs total: 46 [2021-03-25 05:08:18,991 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:08:18,991 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-25 05:08:18,992 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 24 transitions, 125 flow [2021-03-25 05:08:18,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:18,992 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:18,992 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:18,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 05:08:18,992 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:18,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:18,993 INFO L82 PathProgramCache]: Analyzing trace with hash 910780738, now seen corresponding path program 1 times [2021-03-25 05:08:18,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:18,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423991595] [2021-03-25 05:08:18,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:19,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:19,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:08:19,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:19,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:19,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:19,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:19,025 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 05:08:19,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423991595] [2021-03-25 05:08:19,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:19,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:08:19,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185458817] [2021-03-25 05:08:19,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:08:19,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:19,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:08:19,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:08:19,027 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 137 [2021-03-25 05:08:19,028 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 24 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:19,028 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:19,028 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 137 [2021-03-25 05:08:19,028 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:19,058 INFO L129 PetriNetUnfolder]: 8/52 cut-off events. [2021-03-25 05:08:19,058 INFO L130 PetriNetUnfolder]: For 78/83 co-relation queries the response was YES. [2021-03-25 05:08:19,058 INFO L84 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 52 events. 8/52 cut-off events. For 78/83 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 149 event pairs, 4 based on Foata normal form. 4/56 useless extension candidates. Maximal degree in co-relation 167. Up to 26 conditions per place. [2021-03-25 05:08:19,059 INFO L132 encePairwiseOnDemand]: 133/137 looper letters, 4 selfloop transitions, 2 changer transitions 5/26 dead transitions. [2021-03-25 05:08:19,059 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 26 transitions, 161 flow [2021-03-25 05:08:19,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:08:19,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:08:19,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 465 transitions. [2021-03-25 05:08:19,060 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8485401459854015 [2021-03-25 05:08:19,060 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 465 transitions. [2021-03-25 05:08:19,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 465 transitions. [2021-03-25 05:08:19,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:19,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 465 transitions. [2021-03-25 05:08:19,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 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 05:08:19,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 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 05:08:19,064 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 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 05:08:19,064 INFO L185 Difference]: Start difference. First operand has 42 places, 24 transitions, 125 flow. Second operand 4 states and 465 transitions. [2021-03-25 05:08:19,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 26 transitions, 161 flow [2021-03-25 05:08:19,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 26 transitions, 138 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-03-25 05:08:19,068 INFO L241 Difference]: Finished difference. Result has 42 places, 21 transitions, 99 flow [2021-03-25 05:08:19,068 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=42, PETRI_TRANSITIONS=21} [2021-03-25 05:08:19,068 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2021-03-25 05:08:19,068 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:19,068 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 21 transitions, 99 flow [2021-03-25 05:08:19,068 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 21 transitions, 99 flow [2021-03-25 05:08:19,068 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 21 transitions, 99 flow [2021-03-25 05:08:19,075 INFO L129 PetriNetUnfolder]: 5/44 cut-off events. [2021-03-25 05:08:19,075 INFO L130 PetriNetUnfolder]: For 42/44 co-relation queries the response was YES. [2021-03-25 05:08:19,076 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 44 events. 5/44 cut-off events. For 42/44 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 112 event pairs, 5 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 121. Up to 21 conditions per place. [2021-03-25 05:08:19,076 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-25 05:08:19,101 INFO L154 LiptonReduction]: Checked pairs total: 106 [2021-03-25 05:08:19,102 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:08:19,102 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-03-25 05:08:19,103 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 21 transitions, 101 flow [2021-03-25 05:08:19,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:19,104 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:19,104 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:19,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 05:08:19,104 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:19,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:19,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1530098955, now seen corresponding path program 1 times [2021-03-25 05:08:19,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:19,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341744677] [2021-03-25 05:08:19,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:19,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:19,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:19,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:19,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:19,166 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 05:08:19,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341744677] [2021-03-25 05:08:19,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:19,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:08:19,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611795152] [2021-03-25 05:08:19,167 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:08:19,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:19,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:08:19,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:08:19,169 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 138 [2021-03-25 05:08:19,169 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 21 transitions, 101 flow. Second operand has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 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 05:08:19,169 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:19,170 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 138 [2021-03-25 05:08:19,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:19,246 INFO L129 PetriNetUnfolder]: 204/373 cut-off events. [2021-03-25 05:08:19,247 INFO L130 PetriNetUnfolder]: For 996/1190 co-relation queries the response was YES. [2021-03-25 05:08:19,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 984 conditions, 373 events. 204/373 cut-off events. For 996/1190 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 1953 event pairs, 109 based on Foata normal form. 31/351 useless extension candidates. Maximal degree in co-relation 970. Up to 258 conditions per place. [2021-03-25 05:08:19,249 INFO L132 encePairwiseOnDemand]: 131/138 looper letters, 9 selfloop transitions, 9 changer transitions 2/34 dead transitions. [2021-03-25 05:08:19,249 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 34 transitions, 167 flow [2021-03-25 05:08:19,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:08:19,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:08:19,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 562 transitions. [2021-03-25 05:08:19,251 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8144927536231884 [2021-03-25 05:08:19,251 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 562 transitions. [2021-03-25 05:08:19,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 562 transitions. [2021-03-25 05:08:19,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:19,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 562 transitions. [2021-03-25 05:08:19,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 112.4) internal successors, (562), 5 states have internal predecessors, (562), 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 05:08:19,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 138.0) internal successors, (828), 6 states have internal predecessors, (828), 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 05:08:19,254 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 138.0) internal successors, (828), 6 states have internal predecessors, (828), 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 05:08:19,254 INFO L185 Difference]: Start difference. First operand has 41 places, 21 transitions, 101 flow. Second operand 5 states and 562 transitions. [2021-03-25 05:08:19,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 34 transitions, 167 flow [2021-03-25 05:08:19,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 34 transitions, 154 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-25 05:08:19,257 INFO L241 Difference]: Finished difference. Result has 44 places, 29 transitions, 157 flow [2021-03-25 05:08:19,257 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=157, PETRI_PLACES=44, PETRI_TRANSITIONS=29} [2021-03-25 05:08:19,257 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 6 predicate places. [2021-03-25 05:08:19,257 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:19,258 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 29 transitions, 157 flow [2021-03-25 05:08:19,258 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 29 transitions, 157 flow [2021-03-25 05:08:19,258 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 29 transitions, 157 flow [2021-03-25 05:08:19,288 INFO L129 PetriNetUnfolder]: 198/365 cut-off events. [2021-03-25 05:08:19,288 INFO L130 PetriNetUnfolder]: For 693/977 co-relation queries the response was YES. [2021-03-25 05:08:19,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1218 conditions, 365 events. 198/365 cut-off events. For 693/977 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 1855 event pairs, 109 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 1204. Up to 285 conditions per place. [2021-03-25 05:08:19,292 INFO L142 LiptonReduction]: Number of co-enabled transitions 148 [2021-03-25 05:08:19,306 INFO L154 LiptonReduction]: Checked pairs total: 7 [2021-03-25 05:08:19,306 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:08:19,306 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 49 [2021-03-25 05:08:19,307 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 28 transitions, 151 flow [2021-03-25 05:08:19,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 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 05:08:19,308 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:19,308 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:19,308 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 05:08:19,308 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:19,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:19,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1810273016, now seen corresponding path program 1 times [2021-03-25 05:08:19,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:19,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140773668] [2021-03-25 05:08:19,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:19,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:19,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:19,343 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-25 05:08:19,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:08:19,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:19,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:19,356 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 05:08:19,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140773668] [2021-03-25 05:08:19,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:19,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:08:19,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649937967] [2021-03-25 05:08:19,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 05:08:19,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:19,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 05:08:19,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 05:08:19,360 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 138 [2021-03-25 05:08:19,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 28 transitions, 151 flow. Second operand has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:19,361 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:19,361 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 138 [2021-03-25 05:08:19,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:19,428 INFO L129 PetriNetUnfolder]: 142/282 cut-off events. [2021-03-25 05:08:19,429 INFO L130 PetriNetUnfolder]: For 1218/1924 co-relation queries the response was YES. [2021-03-25 05:08:19,430 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 282 events. 142/282 cut-off events. For 1218/1924 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 1301 event pairs, 34 based on Foata normal form. 62/320 useless extension candidates. Maximal degree in co-relation 1147. Up to 231 conditions per place. [2021-03-25 05:08:19,431 INFO L132 encePairwiseOnDemand]: 131/138 looper letters, 9 selfloop transitions, 13 changer transitions 2/38 dead transitions. [2021-03-25 05:08:19,431 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 38 transitions, 257 flow [2021-03-25 05:08:19,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:08:19,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:08:19,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 674 transitions. [2021-03-25 05:08:19,433 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8140096618357487 [2021-03-25 05:08:19,433 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 674 transitions. [2021-03-25 05:08:19,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 674 transitions. [2021-03-25 05:08:19,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:19,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 674 transitions. [2021-03-25 05:08:19,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 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 05:08:19,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 138.0) internal successors, (966), 7 states have internal predecessors, (966), 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 05:08:19,437 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 138.0) internal successors, (966), 7 states have internal predecessors, (966), 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 05:08:19,437 INFO L185 Difference]: Start difference. First operand has 44 places, 28 transitions, 151 flow. Second operand 6 states and 674 transitions. [2021-03-25 05:08:19,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 38 transitions, 257 flow [2021-03-25 05:08:19,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 38 transitions, 250 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 05:08:19,440 INFO L241 Difference]: Finished difference. Result has 48 places, 33 transitions, 236 flow [2021-03-25 05:08:19,440 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=236, PETRI_PLACES=48, PETRI_TRANSITIONS=33} [2021-03-25 05:08:19,441 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 10 predicate places. [2021-03-25 05:08:19,441 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:19,441 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 33 transitions, 236 flow [2021-03-25 05:08:19,441 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 33 transitions, 236 flow [2021-03-25 05:08:19,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 33 transitions, 236 flow [2021-03-25 05:08:19,466 INFO L129 PetriNetUnfolder]: 136/276 cut-off events. [2021-03-25 05:08:19,466 INFO L130 PetriNetUnfolder]: For 1354/2136 co-relation queries the response was YES. [2021-03-25 05:08:19,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1323 conditions, 276 events. 136/276 cut-off events. For 1354/2136 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 1360 event pairs, 33 based on Foata normal form. 5/255 useless extension candidates. Maximal degree in co-relation 1306. Up to 224 conditions per place. [2021-03-25 05:08:19,469 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-25 05:08:19,477 INFO L154 LiptonReduction]: Checked pairs total: 7 [2021-03-25 05:08:19,478 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:08:19,478 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-25 05:08:19,480 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 32 transitions, 228 flow [2021-03-25 05:08:19,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:19,481 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:19,481 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:19,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 05:08:19,481 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:19,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:19,482 INFO L82 PathProgramCache]: Analyzing trace with hash -929286928, now seen corresponding path program 1 times [2021-03-25 05:08:19,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:19,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110269793] [2021-03-25 05:08:19,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:19,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:19,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:19,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:19,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:19,541 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-25 05:08:19,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:08:19,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:19,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:19,549 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 05:08:19,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110269793] [2021-03-25 05:08:19,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:19,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 05:08:19,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620556234] [2021-03-25 05:08:19,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:08:19,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:19,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:08:19,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:08:19,551 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 138 [2021-03-25 05:08:19,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 32 transitions, 228 flow. Second operand has 6 states, 6 states have (on average 108.83333333333333) internal successors, (653), 6 states have internal predecessors, (653), 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 05:08:19,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:19,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 138 [2021-03-25 05:08:19,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:19,620 INFO L129 PetriNetUnfolder]: 77/175 cut-off events. [2021-03-25 05:08:19,620 INFO L130 PetriNetUnfolder]: For 1203/1835 co-relation queries the response was YES. [2021-03-25 05:08:19,621 INFO L84 FinitePrefix]: Finished finitePrefix Result has 950 conditions, 175 events. 77/175 cut-off events. For 1203/1835 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 727 event pairs, 6 based on Foata normal form. 69/231 useless extension candidates. Maximal degree in co-relation 931. Up to 145 conditions per place. [2021-03-25 05:08:19,622 INFO L132 encePairwiseOnDemand]: 131/138 looper letters, 6 selfloop transitions, 17 changer transitions 5/42 dead transitions. [2021-03-25 05:08:19,622 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 42 transitions, 380 flow [2021-03-25 05:08:19,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 05:08:19,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 05:08:19,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 786 transitions. [2021-03-25 05:08:19,624 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8136645962732919 [2021-03-25 05:08:19,624 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 786 transitions. [2021-03-25 05:08:19,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 786 transitions. [2021-03-25 05:08:19,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:19,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 786 transitions. [2021-03-25 05:08:19,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 112.28571428571429) internal successors, (786), 7 states have internal predecessors, (786), 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 05:08:19,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 138.0) internal successors, (1104), 8 states have internal predecessors, (1104), 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 05:08:19,629 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 138.0) internal successors, (1104), 8 states have internal predecessors, (1104), 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 05:08:19,629 INFO L185 Difference]: Start difference. First operand has 48 places, 32 transitions, 228 flow. Second operand 7 states and 786 transitions. [2021-03-25 05:08:19,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 42 transitions, 380 flow [2021-03-25 05:08:19,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 42 transitions, 318 flow, removed 26 selfloop flow, removed 4 redundant places. [2021-03-25 05:08:19,633 INFO L241 Difference]: Finished difference. Result has 51 places, 37 transitions, 288 flow [2021-03-25 05:08:19,633 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=288, PETRI_PLACES=51, PETRI_TRANSITIONS=37} [2021-03-25 05:08:19,633 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 13 predicate places. [2021-03-25 05:08:19,633 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:19,633 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 37 transitions, 288 flow [2021-03-25 05:08:19,633 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 37 transitions, 288 flow [2021-03-25 05:08:19,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 37 transitions, 288 flow [2021-03-25 05:08:19,646 INFO L129 PetriNetUnfolder]: 65/163 cut-off events. [2021-03-25 05:08:19,647 INFO L130 PetriNetUnfolder]: For 718/867 co-relation queries the response was YES. [2021-03-25 05:08:19,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 785 conditions, 163 events. 65/163 cut-off events. For 718/867 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 707 event pairs, 6 based on Foata normal form. 5/156 useless extension candidates. Maximal degree in co-relation 767. Up to 125 conditions per place. [2021-03-25 05:08:19,648 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-25 05:08:19,658 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-25 05:08:19,658 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:08:19,658 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-25 05:08:19,659 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 36 transitions, 278 flow [2021-03-25 05:08:19,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 108.83333333333333) internal successors, (653), 6 states have internal predecessors, (653), 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 05:08:19,660 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:19,660 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:19,660 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 05:08:19,660 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:19,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:19,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1783106523, now seen corresponding path program 1 times [2021-03-25 05:08:19,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:19,660 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360084629] [2021-03-25 05:08:19,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:19,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:19,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:19,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:19,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:19,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:19,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:19,712 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-25 05:08:19,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:08:19,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:19,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:19,722 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 05:08:19,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360084629] [2021-03-25 05:08:19,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:19,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:08:19,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803630108] [2021-03-25 05:08:19,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 05:08:19,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:19,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 05:08:19,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 05:08:19,725 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 138 [2021-03-25 05:08:19,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 36 transitions, 278 flow. Second operand has 7 states, 7 states have (on average 108.85714285714286) internal successors, (762), 7 states have internal predecessors, (762), 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 05:08:19,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:19,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 138 [2021-03-25 05:08:19,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:19,798 INFO L129 PetriNetUnfolder]: 46/113 cut-off events. [2021-03-25 05:08:19,798 INFO L130 PetriNetUnfolder]: For 555/764 co-relation queries the response was YES. [2021-03-25 05:08:19,799 INFO L84 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 113 events. 46/113 cut-off events. For 555/764 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 381 event pairs, 2 based on Foata normal form. 47/148 useless extension candidates. Maximal degree in co-relation 567. Up to 83 conditions per place. [2021-03-25 05:08:19,799 INFO L132 encePairwiseOnDemand]: 131/138 looper letters, 2 selfloop transitions, 17 changer transitions 7/38 dead transitions. [2021-03-25 05:08:19,799 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 38 transitions, 340 flow [2021-03-25 05:08:19,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 05:08:19,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 05:08:19,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 890 transitions. [2021-03-25 05:08:19,802 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8061594202898551 [2021-03-25 05:08:19,802 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 890 transitions. [2021-03-25 05:08:19,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 890 transitions. [2021-03-25 05:08:19,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:19,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 890 transitions. [2021-03-25 05:08:19,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 111.25) internal successors, (890), 8 states have internal predecessors, (890), 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 05:08:19,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 138.0) internal successors, (1242), 9 states have internal predecessors, (1242), 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 05:08:19,807 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 138.0) internal successors, (1242), 9 states have internal predecessors, (1242), 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 05:08:19,807 INFO L185 Difference]: Start difference. First operand has 51 places, 36 transitions, 278 flow. Second operand 8 states and 890 transitions. [2021-03-25 05:08:19,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 38 transitions, 340 flow [2021-03-25 05:08:19,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 38 transitions, 295 flow, removed 16 selfloop flow, removed 4 redundant places. [2021-03-25 05:08:19,811 INFO L241 Difference]: Finished difference. Result has 55 places, 31 transitions, 233 flow [2021-03-25 05:08:19,811 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=233, PETRI_PLACES=55, PETRI_TRANSITIONS=31} [2021-03-25 05:08:19,811 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 17 predicate places. [2021-03-25 05:08:19,811 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:19,811 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 31 transitions, 233 flow [2021-03-25 05:08:19,812 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 31 transitions, 233 flow [2021-03-25 05:08:19,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 31 transitions, 233 flow [2021-03-25 05:08:19,816 INFO L129 PetriNetUnfolder]: 18/51 cut-off events. [2021-03-25 05:08:19,816 INFO L130 PetriNetUnfolder]: For 111/131 co-relation queries the response was YES. [2021-03-25 05:08:19,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 51 events. 18/51 cut-off events. For 111/131 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 108 event pairs, 0 based on Foata normal form. 2/48 useless extension candidates. Maximal degree in co-relation 196. Up to 20 conditions per place. [2021-03-25 05:08:19,817 INFO L142 LiptonReduction]: Number of co-enabled transitions 82 [2021-03-25 05:08:20,022 INFO L154 LiptonReduction]: Checked pairs total: 27 [2021-03-25 05:08:20,022 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 05:08:20,022 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 211 [2021-03-25 05:08:20,023 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 29 transitions, 235 flow [2021-03-25 05:08:20,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 108.85714285714286) internal successors, (762), 7 states have internal predecessors, (762), 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 05:08:20,023 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:08:20,023 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:08:20,024 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 05:08:20,024 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:08:20,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:08:20,024 INFO L82 PathProgramCache]: Analyzing trace with hash -553797558, now seen corresponding path program 1 times [2021-03-25 05:08:20,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:08:20,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371533878] [2021-03-25 05:08:20,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:08:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:08:20,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:20,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:08:20,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:08:20,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:08:20,089 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 05:08:20,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:08:20,099 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 05:08:20,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371533878] [2021-03-25 05:08:20,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:08:20,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:08:20,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704637845] [2021-03-25 05:08:20,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:08:20,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:08:20,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:08:20,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:08:20,101 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 142 [2021-03-25 05:08:20,102 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 29 transitions, 235 flow. Second operand has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 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 05:08:20,102 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:08:20,102 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 142 [2021-03-25 05:08:20,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:08:20,132 INFO L129 PetriNetUnfolder]: 18/48 cut-off events. [2021-03-25 05:08:20,132 INFO L130 PetriNetUnfolder]: For 166/190 co-relation queries the response was YES. [2021-03-25 05:08:20,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 48 events. 18/48 cut-off events. For 166/190 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 96 event pairs, 0 based on Foata normal form. 8/52 useless extension candidates. Maximal degree in co-relation 197. Up to 19 conditions per place. [2021-03-25 05:08:20,133 INFO L132 encePairwiseOnDemand]: 135/142 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2021-03-25 05:08:20,133 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 28 transitions, 223 flow [2021-03-25 05:08:20,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:08:20,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:08:20,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 527 transitions. [2021-03-25 05:08:20,134 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7422535211267606 [2021-03-25 05:08:20,135 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 527 transitions. [2021-03-25 05:08:20,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 527 transitions. [2021-03-25 05:08:20,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:08:20,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 527 transitions. [2021-03-25 05:08:20,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 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 05:08:20,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:20,137 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:08:20,137 INFO L185 Difference]: Start difference. First operand has 49 places, 29 transitions, 235 flow. Second operand 5 states and 527 transitions. [2021-03-25 05:08:20,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 28 transitions, 223 flow [2021-03-25 05:08:20,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 28 transitions, 127 flow, removed 16 selfloop flow, removed 11 redundant places. [2021-03-25 05:08:20,139 INFO L241 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2021-03-25 05:08:20,139 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2021-03-25 05:08:20,139 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2021-03-25 05:08:20,139 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:08:20,140 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 0 transitions, 0 flow [2021-03-25 05:08:20,140 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 0 transitions, 0 flow [2021-03-25 05:08:20,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 05:08:20,140 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 05:08:20,140 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:08:20,140 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 05:08:20,140 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 05:08:20,140 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 05:08:20,140 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:08:20,141 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-25 05:08:20,141 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 05:08:20,141 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 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 05:08:20,141 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 05:08:20,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 05:08:20 BasicIcfg [2021-03-25 05:08:20,145 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 05:08:20,145 INFO L168 Benchmark]: Toolchain (without parser) took 5917.34 ms. Allocated memory was 255.9 MB in the beginning and 425.7 MB in the end (delta: 169.9 MB). Free memory was 232.2 MB in the beginning and 358.9 MB in the end (delta: -126.7 MB). Peak memory consumption was 43.4 MB. Max. memory is 16.0 GB. [2021-03-25 05:08:20,145 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 05:08:20,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.62 ms. Allocated memory was 255.9 MB in the beginning and 354.4 MB in the end (delta: 98.6 MB). Free memory was 231.6 MB in the beginning and 316.2 MB in the end (delta: -84.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-25 05:08:20,146 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.42 ms. Allocated memory is still 354.4 MB. Free memory was 316.2 MB in the beginning and 314.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 05:08:20,146 INFO L168 Benchmark]: Boogie Preprocessor took 32.54 ms. Allocated memory is still 354.4 MB. Free memory was 314.1 MB in the beginning and 312.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 05:08:20,147 INFO L168 Benchmark]: RCFGBuilder took 516.92 ms. Allocated memory is still 354.4 MB. Free memory was 312.7 MB in the beginning and 288.3 MB in the end (delta: 24.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-03-25 05:08:20,147 INFO L168 Benchmark]: TraceAbstraction took 4899.54 ms. Allocated memory was 354.4 MB in the beginning and 425.7 MB in the end (delta: 71.3 MB). Free memory was 287.6 MB in the beginning and 358.9 MB in the end (delta: -71.3 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.0 GB. [2021-03-25 05:08:20,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 424.62 ms. Allocated memory was 255.9 MB in the beginning and 354.4 MB in the end (delta: 98.6 MB). Free memory was 231.6 MB in the beginning and 316.2 MB in the end (delta: -84.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 38.42 ms. Allocated memory is still 354.4 MB. Free memory was 316.2 MB in the beginning and 314.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.54 ms. Allocated memory is still 354.4 MB. Free memory was 314.1 MB in the beginning and 312.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 516.92 ms. Allocated memory is still 354.4 MB. Free memory was 312.7 MB in the beginning and 288.3 MB in the end (delta: 24.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4899.54 ms. Allocated memory was 354.4 MB in the beginning and 425.7 MB in the end (delta: 71.3 MB). Free memory was 287.6 MB in the beginning and 358.9 MB in the end (delta: -71.3 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1481.9ms, 81 PlacesBefore, 38 PlacesAfterwards, 69 TransitionsBefore, 25 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 4 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 44 TotalNumberOfCompositions, 1387 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 945, positive: 911, positive conditional: 0, positive unconditional: 911, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 621, positive: 601, positive conditional: 0, positive unconditional: 601, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 621, positive: 601, positive conditional: 0, positive unconditional: 601, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 945, positive: 310, positive conditional: 0, positive unconditional: 310, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 621, unknown conditional: 0, unknown unconditional: 621] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 514.0ms, 37 PlacesBefore, 33 PlacesAfterwards, 25 TransitionsBefore, 21 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 506 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 123, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 24, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 123, positive: 69, positive conditional: 0, positive unconditional: 69, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 24, unknown conditional: 0, unknown unconditional: 24] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 523.5ms, 38 PlacesBefore, 37 PlacesAfterwards, 30 TransitionsBefore, 29 TransitionsAfterwards, 274 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 136 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 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: 18, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.7ms, 41 PlacesBefore, 41 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 204 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 68 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20, positive: 15, positive conditional: 0, positive unconditional: 15, 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: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 20, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.0ms, 39 PlacesBefore, 39 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 204 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 165 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 46, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 46, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2ms, 42 PlacesBefore, 42 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 128 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 46 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 3, negative conditional: 0, negative unconditional: 3, 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: 15, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.4ms, 42 PlacesBefore, 41 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 106 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40, positive: 31, positive conditional: 0, positive unconditional: 31, 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: 9, positive: 9, positive conditional: 0, positive unconditional: 9, 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: 9, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 40, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 55, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.6ms, 44 PlacesBefore, 44 PlacesAfterwards, 29 TransitionsBefore, 28 TransitionsAfterwards, 148 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.6ms, 48 PlacesBefore, 48 PlacesAfterwards, 33 TransitionsBefore, 32 TransitionsAfterwards, 158 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 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: 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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.1ms, 51 PlacesBefore, 51 PlacesAfterwards, 37 TransitionsBefore, 36 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 44, Positive conditional cache size: 0, Positive unconditional cache size: 44, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 210.3ms, 55 PlacesBefore, 49 PlacesAfterwards, 31 TransitionsBefore, 29 TransitionsAfterwards, 82 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 27 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27, positive: 27, positive conditional: 0, positive unconditional: 27, 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: 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: 27, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 41 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): 27, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4743.1ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 692.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1582.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 39 SDtfs, 43 SDslu, 28 SDs, 0 SdLazy, 224 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 164.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 157.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=288occurred in iteration=9, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 31.7ms SsaConstructionTime, 210.8ms SatisfiabilityAnalysisTime, 538.3ms InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 482 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...