/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/safe017_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 05:04:13,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 05:04:13,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 05:04:13,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 05:04:13,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 05:04:13,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 05:04:13,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 05:04:13,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 05:04:13,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 05:04:13,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 05:04:13,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 05:04:13,864 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 05:04:13,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 05:04:13,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 05:04:13,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 05:04:13,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 05:04:13,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 05:04:13,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 05:04:13,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 05:04:13,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 05:04:13,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 05:04:13,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 05:04:13,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 05:04:13,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 05:04:13,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 05:04:13,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 05:04:13,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 05:04:13,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 05:04:13,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 05:04:13,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 05:04:13,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 05:04:13,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 05:04:13,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 05:04:13,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 05:04:13,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 05:04:13,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 05:04:13,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 05:04:13,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 05:04:13,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 05:04:13,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 05:04:13,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 05:04:13,888 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 05:04:13,919 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 05:04:13,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 05:04:13,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 05:04:13,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 05:04:13,924 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 05:04:13,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 05:04:13,924 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 05:04:13,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 05:04:13,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 05:04:13,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 05:04:13,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 05:04:13,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 05:04:13,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 05:04:13,926 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 05:04:13,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 05:04:13,926 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 05:04:13,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 05:04:13,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 05:04:13,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 05:04:13,927 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 05:04:13,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 05:04:13,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 05:04:13,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 05:04:13,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 05:04:13,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 05:04:13,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 05:04:13,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 05:04:13,929 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 05:04:13,929 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 05:04:13,929 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 05:04:13,929 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 05:04:14,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 05:04:14,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 05:04:14,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 05:04:14,280 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 05:04:14,281 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 05:04:14,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_rmo.opt.i [2021-03-25 05:04:14,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad41002fa/951a88e95be345e78bc7636562c63080/FLAGd91569da8 [2021-03-25 05:04:14,919 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 05:04:14,920 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_rmo.opt.i [2021-03-25 05:04:14,933 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad41002fa/951a88e95be345e78bc7636562c63080/FLAGd91569da8 [2021-03-25 05:04:15,225 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad41002fa/951a88e95be345e78bc7636562c63080 [2021-03-25 05:04:15,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 05:04:15,230 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 05:04:15,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 05:04:15,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 05:04:15,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 05:04:15,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:04:15" (1/1) ... [2021-03-25 05:04:15,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@751176a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:04:15, skipping insertion in model container [2021-03-25 05:04:15,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:04:15" (1/1) ... [2021-03-25 05:04:15,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 05:04:15,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 05:04:15,444 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/safe017_rmo.opt.i[949,962] [2021-03-25 05:04:15,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:04:15,652 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 05:04:15,662 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/safe017_rmo.opt.i[949,962] [2021-03-25 05:04:15,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:04:15,766 INFO L208 MainTranslator]: Completed translation [2021-03-25 05:04:15,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:04:15 WrapperNode [2021-03-25 05:04:15,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 05:04:15,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 05:04:15,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 05:04:15,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 05:04:15,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:04:15" (1/1) ... [2021-03-25 05:04:15,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:04:15" (1/1) ... [2021-03-25 05:04:15,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 05:04:15,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 05:04:15,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 05:04:15,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 05:04:15,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:04:15" (1/1) ... [2021-03-25 05:04:15,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:04:15" (1/1) ... [2021-03-25 05:04:15,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:04:15" (1/1) ... [2021-03-25 05:04:15,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:04:15" (1/1) ... [2021-03-25 05:04:15,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:04:15" (1/1) ... [2021-03-25 05:04:15,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:04:15" (1/1) ... [2021-03-25 05:04:15,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:04:15" (1/1) ... [2021-03-25 05:04:15,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 05:04:15,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 05:04:15,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 05:04:15,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 05:04:15,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:04:15" (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 05:04:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 05:04:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 05:04:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 05:04:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 05:04:15,958 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 05:04:15,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 05:04:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 05:04:15,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 05:04:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 05:04:15,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 05:04:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 05:04:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 05:04:15,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 05:04:15,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 05:04:15,961 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 05:04:17,481 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 05:04:17,482 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 05:04:17,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:04:17 BoogieIcfgContainer [2021-03-25 05:04:17,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 05:04:17,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 05:04:17,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 05:04:17,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 05:04:17,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 05:04:15" (1/3) ... [2021-03-25 05:04:17,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3c7bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:04:17, skipping insertion in model container [2021-03-25 05:04:17,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:04:15" (2/3) ... [2021-03-25 05:04:17,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3c7bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:04:17, skipping insertion in model container [2021-03-25 05:04:17,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:04:17" (3/3) ... [2021-03-25 05:04:17,493 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_rmo.opt.i [2021-03-25 05:04:17,498 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 05:04:17,503 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 05:04:17,503 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 05:04:17,532 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,532 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,533 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,533 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,533 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,533 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,533 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,533 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,533 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,533 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,534 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,534 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,534 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,534 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,534 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,534 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,535 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,535 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,535 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,535 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,535 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,535 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,535 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,536 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,536 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,536 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,536 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,536 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,536 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,536 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,537 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,537 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,538 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,538 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,538 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,538 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,540 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,541 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,541 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,541 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,541 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,541 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,541 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,541 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,542 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,542 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,542 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,542 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,542 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,542 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,542 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,542 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,542 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,542 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,543 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,544 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,544 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,544 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,544 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,544 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,546 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,546 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,546 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,547 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,549 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,549 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,549 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,549 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,549 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,550 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,552 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,552 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,552 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,552 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,552 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,552 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,553 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,553 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,553 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,553 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,553 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,553 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:04:17,554 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 05:04:17,571 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-25 05:04:17,590 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 05:04:17,590 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 05:04:17,590 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 05:04:17,590 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 05:04:17,590 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 05:04:17,590 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 05:04:17,590 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 05:04:17,590 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 05:04:17,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 205 flow [2021-03-25 05:04:17,631 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-03-25 05:04:17,631 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:04:17,634 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-03-25 05:04:17,634 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 95 transitions, 205 flow [2021-03-25 05:04:17,638 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 92 transitions, 193 flow [2021-03-25 05:04:17,639 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:17,647 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 92 transitions, 193 flow [2021-03-25 05:04:17,649 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 92 transitions, 193 flow [2021-03-25 05:04:17,651 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 193 flow [2021-03-25 05:04:17,666 INFO L129 PetriNetUnfolder]: 2/92 cut-off events. [2021-03-25 05:04:17,666 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:04:17,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 92 events. 2/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-03-25 05:04:17,669 INFO L142 LiptonReduction]: Number of co-enabled transitions 1602 [2021-03-25 05:04:19,058 WARN L205 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 186 [2021-03-25 05:04:19,442 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-03-25 05:04:20,733 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 310 DAG size of output: 266 [2021-03-25 05:04:21,293 WARN L205 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2021-03-25 05:04:21,546 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 05:04:21,932 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2021-03-25 05:04:22,059 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-25 05:04:22,933 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-25 05:04:23,257 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-25 05:04:24,387 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 265 DAG size of output: 264 [2021-03-25 05:04:24,975 WARN L205 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2021-03-25 05:04:25,204 INFO L154 LiptonReduction]: Checked pairs total: 2709 [2021-03-25 05:04:25,205 INFO L156 LiptonReduction]: Total number of compositions: 66 [2021-03-25 05:04:25,207 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7569 [2021-03-25 05:04:25,213 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-25 05:04:25,213 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:04:25,214 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:25,214 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:25,214 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:25,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:25,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1950849355, now seen corresponding path program 1 times [2021-03-25 05:04:25,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:25,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837952697] [2021-03-25 05:04:25,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:25,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:25,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:04:25,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:25,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:04:25,442 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 05:04:25,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837952697] [2021-03-25 05:04:25,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:25,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:04:25,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559962969] [2021-03-25 05:04:25,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:04:25,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:25,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:04:25,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:04:25,464 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 161 [2021-03-25 05:04:25,466 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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 05:04:25,466 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:25,466 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 161 [2021-03-25 05:04:25,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:25,571 INFO L129 PetriNetUnfolder]: 69/176 cut-off events. [2021-03-25 05:04:25,571 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:04:25,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 176 events. 69/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 797 event pairs, 54 based on Foata normal form. 9/164 useless extension candidates. Maximal degree in co-relation 284. Up to 89 conditions per place. [2021-03-25 05:04:25,575 INFO L132 encePairwiseOnDemand]: 157/161 looper letters, 9 selfloop transitions, 2 changer transitions 3/39 dead transitions. [2021-03-25 05:04:25,575 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 39 transitions, 113 flow [2021-03-25 05:04:25,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:04:25,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:04:25,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2021-03-25 05:04:25,588 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8840579710144928 [2021-03-25 05:04:25,589 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 427 transitions. [2021-03-25 05:04:25,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 427 transitions. [2021-03-25 05:04:25,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:25,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 427 transitions. [2021-03-25 05:04:25,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:04:25,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 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 05:04:25,602 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 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 05:04:25,604 INFO L185 Difference]: Start difference. First operand has 46 places, 37 transitions, 83 flow. Second operand 3 states and 427 transitions. [2021-03-25 05:04:25,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 39 transitions, 113 flow [2021-03-25 05:04:25,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 39 transitions, 110 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 05:04:25,608 INFO L241 Difference]: Finished difference. Result has 43 places, 32 transitions, 74 flow [2021-03-25 05:04:25,609 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2021-03-25 05:04:25,610 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2021-03-25 05:04:25,610 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:25,610 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 32 transitions, 74 flow [2021-03-25 05:04:25,611 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 32 transitions, 74 flow [2021-03-25 05:04:25,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 32 transitions, 74 flow [2021-03-25 05:04:25,615 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-03-25 05:04:25,616 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:04:25,616 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 32 events. 0/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 30 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 05:04:25,616 INFO L142 LiptonReduction]: Number of co-enabled transitions 234 [2021-03-25 05:04:26,154 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-03-25 05:04:26,516 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-03-25 05:04:27,781 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 266 DAG size of output: 265 [2021-03-25 05:04:28,415 WARN L205 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-25 05:04:29,005 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-03-25 05:04:29,162 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-03-25 05:04:29,216 INFO L154 LiptonReduction]: Checked pairs total: 1040 [2021-03-25 05:04:29,216 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-25 05:04:29,216 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3606 [2021-03-25 05:04:29,217 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 54 flow [2021-03-25 05:04:29,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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 05:04:29,218 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:29,218 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:29,218 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 05:04:29,218 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:29,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:29,219 INFO L82 PathProgramCache]: Analyzing trace with hash 344608737, now seen corresponding path program 1 times [2021-03-25 05:04:29,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:29,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384520067] [2021-03-25 05:04:29,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:29,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:29,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:04:29,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:29,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:04:29,349 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-25 05:04:29,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 05:04:29,354 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 05:04:29,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384520067] [2021-03-25 05:04:29,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:29,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:04:29,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459646773] [2021-03-25 05:04:29,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:04:29,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:29,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:04:29,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:04:29,367 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 171 [2021-03-25 05:04:29,367 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 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 05:04:29,367 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:29,368 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 171 [2021-03-25 05:04:29,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:29,385 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-03-25 05:04:29,385 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:04:29,386 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 25 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 05:04:29,386 INFO L132 encePairwiseOnDemand]: 168/171 looper letters, 1 selfloop transitions, 2 changer transitions 1/22 dead transitions. [2021-03-25 05:04:29,386 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 22 transitions, 60 flow [2021-03-25 05:04:29,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:04:29,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:04:29,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 442 transitions. [2021-03-25 05:04:29,389 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8615984405458089 [2021-03-25 05:04:29,389 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 442 transitions. [2021-03-25 05:04:29,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 442 transitions. [2021-03-25 05:04:29,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:29,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 442 transitions. [2021-03-25 05:04:29,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:04:29,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 05:04:29,394 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 05:04:29,394 INFO L185 Difference]: Start difference. First operand has 31 places, 22 transitions, 54 flow. Second operand 3 states and 442 transitions. [2021-03-25 05:04:29,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 22 transitions, 60 flow [2021-03-25 05:04:29,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 22 transitions, 56 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 05:04:29,395 INFO L241 Difference]: Finished difference. Result has 32 places, 21 transitions, 56 flow [2021-03-25 05:04:29,395 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=32, PETRI_TRANSITIONS=21} [2021-03-25 05:04:29,396 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -14 predicate places. [2021-03-25 05:04:29,396 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:29,396 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 21 transitions, 56 flow [2021-03-25 05:04:29,397 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 21 transitions, 56 flow [2021-03-25 05:04:29,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 21 transitions, 56 flow [2021-03-25 05:04:29,401 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-25 05:04:29,401 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:04:29,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 21 events. 0/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 05:04:29,401 INFO L142 LiptonReduction]: Number of co-enabled transitions 188 [2021-03-25 05:04:29,696 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-25 05:04:29,817 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-25 05:04:30,106 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-25 05:04:30,231 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-03-25 05:04:30,234 INFO L154 LiptonReduction]: Checked pairs total: 438 [2021-03-25 05:04:30,234 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:04:30,234 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 838 [2021-03-25 05:04:30,235 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 54 flow [2021-03-25 05:04:30,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 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 05:04:30,235 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:30,235 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:30,236 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 05:04:30,236 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:30,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:30,236 INFO L82 PathProgramCache]: Analyzing trace with hash -2053126643, now seen corresponding path program 1 times [2021-03-25 05:04:30,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:30,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737371254] [2021-03-25 05:04:30,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:30,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:30,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:04:30,331 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 05:04:30,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737371254] [2021-03-25 05:04:30,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:30,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 05:04:30,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911687613] [2021-03-25 05:04:30,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:04:30,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:30,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:04:30,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:04:30,336 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 172 [2021-03-25 05:04:30,337 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:04:30,337 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:30,337 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 172 [2021-03-25 05:04:30,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:30,357 INFO L129 PetriNetUnfolder]: 7/45 cut-off events. [2021-03-25 05:04:30,357 INFO L130 PetriNetUnfolder]: For 7/17 co-relation queries the response was YES. [2021-03-25 05:04:30,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 45 events. 7/45 cut-off events. For 7/17 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 123 event pairs, 2 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 75. Up to 17 conditions per place. [2021-03-25 05:04:30,358 INFO L132 encePairwiseOnDemand]: 168/172 looper letters, 5 selfloop transitions, 3 changer transitions 0/23 dead transitions. [2021-03-25 05:04:30,358 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 23 transitions, 79 flow [2021-03-25 05:04:30,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:04:30,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:04:30,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2021-03-25 05:04:30,360 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.872093023255814 [2021-03-25 05:04:30,361 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 450 transitions. [2021-03-25 05:04:30,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 450 transitions. [2021-03-25 05:04:30,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:30,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 450 transitions. [2021-03-25 05:04:30,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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 05:04:30,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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 05:04:30,364 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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 05:04:30,364 INFO L185 Difference]: Start difference. First operand has 30 places, 20 transitions, 54 flow. Second operand 3 states and 450 transitions. [2021-03-25 05:04:30,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 23 transitions, 79 flow [2021-03-25 05:04:30,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 23 transitions, 73 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 05:04:30,365 INFO L241 Difference]: Finished difference. Result has 31 places, 22 transitions, 69 flow [2021-03-25 05:04:30,365 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2021-03-25 05:04:30,365 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -15 predicate places. [2021-03-25 05:04:30,365 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:30,365 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 22 transitions, 69 flow [2021-03-25 05:04:30,366 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 22 transitions, 69 flow [2021-03-25 05:04:30,366 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 22 transitions, 69 flow [2021-03-25 05:04:30,372 INFO L129 PetriNetUnfolder]: 3/30 cut-off events. [2021-03-25 05:04:30,372 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 05:04:30,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 30 events. 3/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 60 event pairs, 1 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 47. Up to 10 conditions per place. [2021-03-25 05:04:30,374 INFO L142 LiptonReduction]: Number of co-enabled transitions 214 [2021-03-25 05:04:30,376 INFO L154 LiptonReduction]: Checked pairs total: 196 [2021-03-25 05:04:30,376 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:04:30,377 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-25 05:04:30,381 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 69 flow [2021-03-25 05:04:30,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:04:30,384 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:30,384 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:30,384 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 05:04:30,384 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:30,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:30,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1916283550, now seen corresponding path program 1 times [2021-03-25 05:04:30,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:30,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320756306] [2021-03-25 05:04:30,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:30,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:30,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 05:04:30,514 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.3 percent of original size [2021-03-25 05:04:30,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 05:04:30,539 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 05:04:30,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320756306] [2021-03-25 05:04:30,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:30,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:04:30,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849125661] [2021-03-25 05:04:30,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:04:30,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:30,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:04:30,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:04:30,543 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 172 [2021-03-25 05:04:30,543 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 131.75) internal successors, (527), 4 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 05:04:30,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:30,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 172 [2021-03-25 05:04:30,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:30,623 INFO L129 PetriNetUnfolder]: 106/221 cut-off events. [2021-03-25 05:04:30,623 INFO L130 PetriNetUnfolder]: For 76/76 co-relation queries the response was YES. [2021-03-25 05:04:30,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 221 events. 106/221 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 994 event pairs, 78 based on Foata normal form. 1/201 useless extension candidates. Maximal degree in co-relation 463. Up to 163 conditions per place. [2021-03-25 05:04:30,628 INFO L132 encePairwiseOnDemand]: 167/172 looper letters, 8 selfloop transitions, 4 changer transitions 0/26 dead transitions. [2021-03-25 05:04:30,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 26 transitions, 101 flow [2021-03-25 05:04:30,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:04:30,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:04:30,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2021-03-25 05:04:30,631 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7868217054263565 [2021-03-25 05:04:30,631 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 406 transitions. [2021-03-25 05:04:30,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 406 transitions. [2021-03-25 05:04:30,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:30,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 406 transitions. [2021-03-25 05:04:30,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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 05:04:30,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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 05:04:30,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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 05:04:30,634 INFO L185 Difference]: Start difference. First operand has 31 places, 22 transitions, 69 flow. Second operand 3 states and 406 transitions. [2021-03-25 05:04:30,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 26 transitions, 101 flow [2021-03-25 05:04:30,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 26 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 05:04:30,636 INFO L241 Difference]: Finished difference. Result has 33 places, 25 transitions, 92 flow [2021-03-25 05:04:30,636 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2021-03-25 05:04:30,636 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -13 predicate places. [2021-03-25 05:04:30,636 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:30,637 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 25 transitions, 92 flow [2021-03-25 05:04:30,637 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 25 transitions, 92 flow [2021-03-25 05:04:30,637 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 25 transitions, 92 flow [2021-03-25 05:04:30,647 INFO L129 PetriNetUnfolder]: 20/81 cut-off events. [2021-03-25 05:04:30,647 INFO L130 PetriNetUnfolder]: For 39/48 co-relation queries the response was YES. [2021-03-25 05:04:30,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 81 events. 20/81 cut-off events. For 39/48 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 337 event pairs, 9 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 158. Up to 37 conditions per place. [2021-03-25 05:04:30,648 INFO L142 LiptonReduction]: Number of co-enabled transitions 230 [2021-03-25 05:04:30,650 INFO L154 LiptonReduction]: Checked pairs total: 123 [2021-03-25 05:04:30,650 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:04:30,650 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-25 05:04:30,652 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 92 flow [2021-03-25 05:04:30,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 131.75) internal successors, (527), 4 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 05:04:30,652 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:30,652 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:30,652 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 05:04:30,653 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:30,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:30,653 INFO L82 PathProgramCache]: Analyzing trace with hash 714472308, now seen corresponding path program 1 times [2021-03-25 05:04:30,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:30,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845409717] [2021-03-25 05:04:30,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:30,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:30,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:04:30,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:30,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:04:30,719 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 05:04:30,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845409717] [2021-03-25 05:04:30,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:30,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:04:30,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394300963] [2021-03-25 05:04:30,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:04:30,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:30,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:04:30,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:04:30,721 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 172 [2021-03-25 05:04:30,722 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 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 05:04:30,722 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:30,722 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 172 [2021-03-25 05:04:30,722 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:30,750 INFO L129 PetriNetUnfolder]: 24/101 cut-off events. [2021-03-25 05:04:30,751 INFO L130 PetriNetUnfolder]: For 117/197 co-relation queries the response was YES. [2021-03-25 05:04:30,751 INFO L84 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 101 events. 24/101 cut-off events. For 117/197 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 438 event pairs, 13 based on Foata normal form. 7/105 useless extension candidates. Maximal degree in co-relation 215. Up to 44 conditions per place. [2021-03-25 05:04:30,751 INFO L132 encePairwiseOnDemand]: 169/172 looper letters, 5 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2021-03-25 05:04:30,751 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 26 transitions, 111 flow [2021-03-25 05:04:30,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:04:30,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:04:30,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 449 transitions. [2021-03-25 05:04:30,754 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8701550387596899 [2021-03-25 05:04:30,754 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 449 transitions. [2021-03-25 05:04:30,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 449 transitions. [2021-03-25 05:04:30,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:30,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 449 transitions. [2021-03-25 05:04:30,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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 05:04:30,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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 05:04:30,756 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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 05:04:30,756 INFO L185 Difference]: Start difference. First operand has 33 places, 25 transitions, 92 flow. Second operand 3 states and 449 transitions. [2021-03-25 05:04:30,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 26 transitions, 111 flow [2021-03-25 05:04:30,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 26 transitions, 107 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 05:04:30,758 INFO L241 Difference]: Finished difference. Result has 35 places, 25 transitions, 99 flow [2021-03-25 05:04:30,759 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=35, PETRI_TRANSITIONS=25} [2021-03-25 05:04:30,759 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -11 predicate places. [2021-03-25 05:04:30,759 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:30,759 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 25 transitions, 99 flow [2021-03-25 05:04:30,759 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 25 transitions, 99 flow [2021-03-25 05:04:30,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 25 transitions, 99 flow [2021-03-25 05:04:30,770 INFO L129 PetriNetUnfolder]: 19/84 cut-off events. [2021-03-25 05:04:30,770 INFO L130 PetriNetUnfolder]: For 91/110 co-relation queries the response was YES. [2021-03-25 05:04:30,770 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 84 events. 19/84 cut-off events. For 91/110 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 347 event pairs, 8 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 182. Up to 40 conditions per place. [2021-03-25 05:04:30,771 INFO L142 LiptonReduction]: Number of co-enabled transitions 230 [2021-03-25 05:04:30,773 INFO L154 LiptonReduction]: Checked pairs total: 149 [2021-03-25 05:04:30,773 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:04:30,774 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-25 05:04:30,778 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 99 flow [2021-03-25 05:04:30,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 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 05:04:30,780 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:30,780 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:30,780 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 05:04:30,780 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:30,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:30,782 INFO L82 PathProgramCache]: Analyzing trace with hash 725299430, now seen corresponding path program 1 times [2021-03-25 05:04:30,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:30,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939484220] [2021-03-25 05:04:30,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:30,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:30,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:04:30,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:30,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:04:30,874 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 05:04:30,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939484220] [2021-03-25 05:04:30,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:30,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:04:30,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862565908] [2021-03-25 05:04:30,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:04:30,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:30,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:04:30,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:04:30,876 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 172 [2021-03-25 05:04:30,877 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 99 flow. Second operand has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:04:30,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:30,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 172 [2021-03-25 05:04:30,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:30,917 INFO L129 PetriNetUnfolder]: 28/135 cut-off events. [2021-03-25 05:04:30,917 INFO L130 PetriNetUnfolder]: For 283/402 co-relation queries the response was YES. [2021-03-25 05:04:30,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 135 events. 28/135 cut-off events. For 283/402 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 736 event pairs, 14 based on Foata normal form. 15/141 useless extension candidates. Maximal degree in co-relation 283. Up to 59 conditions per place. [2021-03-25 05:04:30,918 INFO L132 encePairwiseOnDemand]: 167/172 looper letters, 4 selfloop transitions, 4 changer transitions 2/28 dead transitions. [2021-03-25 05:04:30,918 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 28 transitions, 136 flow [2021-03-25 05:04:30,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:04:30,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:04:30,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 587 transitions. [2021-03-25 05:04:30,921 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8531976744186046 [2021-03-25 05:04:30,921 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 587 transitions. [2021-03-25 05:04:30,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 587 transitions. [2021-03-25 05:04:30,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:30,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 587 transitions. [2021-03-25 05:04:30,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 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 05:04:30,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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 05:04:30,926 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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 05:04:30,926 INFO L185 Difference]: Start difference. First operand has 35 places, 25 transitions, 99 flow. Second operand 4 states and 587 transitions. [2021-03-25 05:04:30,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 28 transitions, 136 flow [2021-03-25 05:04:30,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 28 transitions, 127 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-25 05:04:30,928 INFO L241 Difference]: Finished difference. Result has 38 places, 25 transitions, 107 flow [2021-03-25 05:04:30,929 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=107, PETRI_PLACES=38, PETRI_TRANSITIONS=25} [2021-03-25 05:04:30,929 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -8 predicate places. [2021-03-25 05:04:30,929 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:30,929 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 25 transitions, 107 flow [2021-03-25 05:04:30,929 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 25 transitions, 107 flow [2021-03-25 05:04:30,929 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 25 transitions, 107 flow [2021-03-25 05:04:30,942 INFO L129 PetriNetUnfolder]: 19/88 cut-off events. [2021-03-25 05:04:30,942 INFO L130 PetriNetUnfolder]: For 110/113 co-relation queries the response was YES. [2021-03-25 05:04:30,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 88 events. 19/88 cut-off events. For 110/113 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 368 event pairs, 11 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 198. Up to 41 conditions per place. [2021-03-25 05:04:30,943 INFO L142 LiptonReduction]: Number of co-enabled transitions 210 [2021-03-25 05:04:30,945 INFO L154 LiptonReduction]: Checked pairs total: 129 [2021-03-25 05:04:30,945 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:04:30,945 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-25 05:04:30,947 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 25 transitions, 107 flow [2021-03-25 05:04:30,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:04:30,947 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:30,947 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:30,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 05:04:30,947 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:30,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:30,948 INFO L82 PathProgramCache]: Analyzing trace with hash 724751660, now seen corresponding path program 2 times [2021-03-25 05:04:30,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:30,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184944313] [2021-03-25 05:04:30,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:31,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:31,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 05:04:31,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:31,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:04:31,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:31,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 05:04:31,047 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 05:04:31,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184944313] [2021-03-25 05:04:31,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:31,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:04:31,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132302627] [2021-03-25 05:04:31,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 05:04:31,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:31,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 05:04:31,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 05:04:31,050 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 172 [2021-03-25 05:04:31,051 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 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 05:04:31,051 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:31,051 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 172 [2021-03-25 05:04:31,051 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:31,133 INFO L129 PetriNetUnfolder]: 115/255 cut-off events. [2021-03-25 05:04:31,133 INFO L130 PetriNetUnfolder]: For 372/414 co-relation queries the response was YES. [2021-03-25 05:04:31,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 684 conditions, 255 events. 115/255 cut-off events. For 372/414 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1172 event pairs, 30 based on Foata normal form. 6/251 useless extension candidates. Maximal degree in co-relation 668. Up to 195 conditions per place. [2021-03-25 05:04:31,135 INFO L132 encePairwiseOnDemand]: 166/172 looper letters, 9 selfloop transitions, 7 changer transitions 0/30 dead transitions. [2021-03-25 05:04:31,135 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 30 transitions, 153 flow [2021-03-25 05:04:31,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:04:31,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:04:31,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 529 transitions. [2021-03-25 05:04:31,138 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7688953488372093 [2021-03-25 05:04:31,138 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 529 transitions. [2021-03-25 05:04:31,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 529 transitions. [2021-03-25 05:04:31,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:31,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 529 transitions. [2021-03-25 05:04:31,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 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 05:04:31,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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 05:04:31,141 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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 05:04:31,141 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 107 flow. Second operand 4 states and 529 transitions. [2021-03-25 05:04:31,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 30 transitions, 153 flow [2021-03-25 05:04:31,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 30 transitions, 143 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-25 05:04:31,146 INFO L241 Difference]: Finished difference. Result has 39 places, 28 transitions, 133 flow [2021-03-25 05:04:31,146 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=133, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2021-03-25 05:04:31,148 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2021-03-25 05:04:31,148 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:31,148 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 28 transitions, 133 flow [2021-03-25 05:04:31,148 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 28 transitions, 133 flow [2021-03-25 05:04:31,149 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 28 transitions, 133 flow [2021-03-25 05:04:31,167 INFO L129 PetriNetUnfolder]: 32/116 cut-off events. [2021-03-25 05:04:31,167 INFO L130 PetriNetUnfolder]: For 154/185 co-relation queries the response was YES. [2021-03-25 05:04:31,169 INFO L84 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 116 events. 32/116 cut-off events. For 154/185 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 531 event pairs, 14 based on Foata normal form. 1/112 useless extension candidates. Maximal degree in co-relation 295. Up to 58 conditions per place. [2021-03-25 05:04:31,171 INFO L142 LiptonReduction]: Number of co-enabled transitions 236 [2021-03-25 05:04:31,174 INFO L154 LiptonReduction]: Checked pairs total: 97 [2021-03-25 05:04:31,174 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:04:31,175 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-25 05:04:31,177 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 133 flow [2021-03-25 05:04:31,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 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 05:04:31,177 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:31,177 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:31,178 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 05:04:31,178 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:31,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:31,178 INFO L82 PathProgramCache]: Analyzing trace with hash -195979664, now seen corresponding path program 1 times [2021-03-25 05:04:31,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:31,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603961049] [2021-03-25 05:04:31,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:31,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:31,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 05:04:31,298 INFO L142 QuantifierPusher]: treesize reduction 36, result has 67.3 percent of original size [2021-03-25 05:04:31,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-03-25 05:04:31,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:31,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 05:04:31,349 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 05:04:31,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603961049] [2021-03-25 05:04:31,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:31,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:04:31,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059528767] [2021-03-25 05:04:31,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 05:04:31,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:31,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 05:04:31,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 05:04:31,352 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 172 [2021-03-25 05:04:31,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 133 flow. Second operand has 5 states, 5 states have (on average 122.8) internal successors, (614), 5 states have internal predecessors, (614), 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 05:04:31,352 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:31,353 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 172 [2021-03-25 05:04:31,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:31,442 INFO L129 PetriNetUnfolder]: 116/259 cut-off events. [2021-03-25 05:04:31,442 INFO L130 PetriNetUnfolder]: For 434/531 co-relation queries the response was YES. [2021-03-25 05:04:31,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 259 events. 116/259 cut-off events. For 434/531 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1206 event pairs, 45 based on Foata normal form. 14/267 useless extension candidates. Maximal degree in co-relation 794. Up to 191 conditions per place. [2021-03-25 05:04:31,471 INFO L132 encePairwiseOnDemand]: 166/172 looper letters, 10 selfloop transitions, 9 changer transitions 1/34 dead transitions. [2021-03-25 05:04:31,471 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 34 transitions, 197 flow [2021-03-25 05:04:31,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:04:31,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:04:31,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 506 transitions. [2021-03-25 05:04:31,474 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7354651162790697 [2021-03-25 05:04:31,474 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 506 transitions. [2021-03-25 05:04:31,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 506 transitions. [2021-03-25 05:04:31,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:31,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 506 transitions. [2021-03-25 05:04:31,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.5) internal successors, (506), 4 states have internal predecessors, (506), 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 05:04:31,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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 05:04:31,477 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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 05:04:31,477 INFO L185 Difference]: Start difference. First operand has 39 places, 28 transitions, 133 flow. Second operand 4 states and 506 transitions. [2021-03-25 05:04:31,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 34 transitions, 197 flow [2021-03-25 05:04:31,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 34 transitions, 183 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-25 05:04:31,480 INFO L241 Difference]: Finished difference. Result has 42 places, 31 transitions, 174 flow [2021-03-25 05:04:31,480 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2021-03-25 05:04:31,480 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -4 predicate places. [2021-03-25 05:04:31,480 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:31,481 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 31 transitions, 174 flow [2021-03-25 05:04:31,481 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 31 transitions, 174 flow [2021-03-25 05:04:31,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 31 transitions, 174 flow [2021-03-25 05:04:31,498 INFO L129 PetriNetUnfolder]: 30/111 cut-off events. [2021-03-25 05:04:31,498 INFO L130 PetriNetUnfolder]: For 324/382 co-relation queries the response was YES. [2021-03-25 05:04:31,499 INFO L84 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 111 events. 30/111 cut-off events. For 324/382 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 516 event pairs, 8 based on Foata normal form. 2/108 useless extension candidates. Maximal degree in co-relation 347. Up to 57 conditions per place. [2021-03-25 05:04:31,500 INFO L142 LiptonReduction]: Number of co-enabled transitions 256 [2021-03-25 05:04:31,506 INFO L154 LiptonReduction]: Checked pairs total: 171 [2021-03-25 05:04:31,507 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:04:31,507 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-25 05:04:31,507 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 174 flow [2021-03-25 05:04:31,507 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 122.8) internal successors, (614), 5 states have internal predecessors, (614), 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 05:04:31,507 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:31,508 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:31,508 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 05:04:31,508 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:31,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:31,508 INFO L82 PathProgramCache]: Analyzing trace with hash 700346476, now seen corresponding path program 1 times [2021-03-25 05:04:31,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:31,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769775571] [2021-03-25 05:04:31,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:31,568 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-25 05:04:31,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 05:04:31,600 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 05:04:31,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 05:04:31,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:31,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 05:04:31,644 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 05:04:31,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769775571] [2021-03-25 05:04:31,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:31,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:04:31,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714058095] [2021-03-25 05:04:31,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 05:04:31,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:31,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 05:04:31,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 05:04:31,647 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 172 [2021-03-25 05:04:31,648 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 174 flow. Second operand has 5 states, 5 states have (on average 129.8) internal successors, (649), 5 states have internal predecessors, (649), 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 05:04:31,648 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:31,648 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 172 [2021-03-25 05:04:31,648 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:31,745 INFO L129 PetriNetUnfolder]: 106/245 cut-off events. [2021-03-25 05:04:31,745 INFO L130 PetriNetUnfolder]: For 690/801 co-relation queries the response was YES. [2021-03-25 05:04:31,746 INFO L84 FinitePrefix]: Finished finitePrefix Result has 852 conditions, 245 events. 106/245 cut-off events. For 690/801 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1151 event pairs, 47 based on Foata normal form. 14/250 useless extension candidates. Maximal degree in co-relation 834. Up to 167 conditions per place. [2021-03-25 05:04:31,748 INFO L132 encePairwiseOnDemand]: 168/172 looper letters, 15 selfloop transitions, 6 changer transitions 0/35 dead transitions. [2021-03-25 05:04:31,748 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 35 transitions, 228 flow [2021-03-25 05:04:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:04:31,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:04:31,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 532 transitions. [2021-03-25 05:04:31,750 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7732558139534884 [2021-03-25 05:04:31,750 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 532 transitions. [2021-03-25 05:04:31,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 532 transitions. [2021-03-25 05:04:31,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:31,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 532 transitions. [2021-03-25 05:04:31,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 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 05:04:31,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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 05:04:31,753 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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 05:04:31,753 INFO L185 Difference]: Start difference. First operand has 42 places, 31 transitions, 174 flow. Second operand 4 states and 532 transitions. [2021-03-25 05:04:31,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 35 transitions, 228 flow [2021-03-25 05:04:31,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 35 transitions, 224 flow, removed 2 selfloop flow, removed 0 redundant places. [2021-03-25 05:04:31,755 INFO L241 Difference]: Finished difference. Result has 46 places, 31 transitions, 187 flow [2021-03-25 05:04:31,755 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=187, PETRI_PLACES=46, PETRI_TRANSITIONS=31} [2021-03-25 05:04:31,756 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 0 predicate places. [2021-03-25 05:04:31,756 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:31,756 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 31 transitions, 187 flow [2021-03-25 05:04:31,756 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 31 transitions, 187 flow [2021-03-25 05:04:31,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 31 transitions, 187 flow [2021-03-25 05:04:31,771 INFO L129 PetriNetUnfolder]: 27/109 cut-off events. [2021-03-25 05:04:31,771 INFO L130 PetriNetUnfolder]: For 398/469 co-relation queries the response was YES. [2021-03-25 05:04:31,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 109 events. 27/109 cut-off events. For 398/469 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 494 event pairs, 9 based on Foata normal form. 2/105 useless extension candidates. Maximal degree in co-relation 335. Up to 53 conditions per place. [2021-03-25 05:04:31,773 INFO L142 LiptonReduction]: Number of co-enabled transitions 256 [2021-03-25 05:04:31,776 INFO L154 LiptonReduction]: Checked pairs total: 155 [2021-03-25 05:04:31,776 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:04:31,776 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-25 05:04:31,776 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 31 transitions, 187 flow [2021-03-25 05:04:31,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 129.8) internal successors, (649), 5 states have internal predecessors, (649), 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 05:04:31,777 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:31,777 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:31,777 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 05:04:31,777 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:31,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:31,778 INFO L82 PathProgramCache]: Analyzing trace with hash -756890758, now seen corresponding path program 1 times [2021-03-25 05:04:31,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:31,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390255419] [2021-03-25 05:04:31,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:31,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:31,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 05:04:31,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:31,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 05:04:31,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:31,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 05:04:31,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:31,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 05:04:31,880 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 05:04:31,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390255419] [2021-03-25 05:04:31,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:31,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:04:31,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181857375] [2021-03-25 05:04:31,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 05:04:31,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:31,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 05:04:31,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 05:04:31,882 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 172 [2021-03-25 05:04:31,883 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 31 transitions, 187 flow. Second operand has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 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 05:04:31,883 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:31,883 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 172 [2021-03-25 05:04:31,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:31,972 INFO L129 PetriNetUnfolder]: 102/233 cut-off events. [2021-03-25 05:04:31,972 INFO L130 PetriNetUnfolder]: For 825/923 co-relation queries the response was YES. [2021-03-25 05:04:31,973 INFO L84 FinitePrefix]: Finished finitePrefix Result has 841 conditions, 233 events. 102/233 cut-off events. For 825/923 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1085 event pairs, 40 based on Foata normal form. 20/247 useless extension candidates. Maximal degree in co-relation 820. Up to 164 conditions per place. [2021-03-25 05:04:31,974 INFO L132 encePairwiseOnDemand]: 167/172 looper letters, 11 selfloop transitions, 10 changer transitions 0/35 dead transitions. [2021-03-25 05:04:31,974 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 35 transitions, 247 flow [2021-03-25 05:04:31,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:04:31,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:04:31,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 529 transitions. [2021-03-25 05:04:31,977 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7688953488372093 [2021-03-25 05:04:31,977 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 529 transitions. [2021-03-25 05:04:31,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 529 transitions. [2021-03-25 05:04:31,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:31,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 529 transitions. [2021-03-25 05:04:31,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 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 05:04:31,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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 05:04:31,980 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 172.0) internal successors, (860), 5 states have internal predecessors, (860), 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 05:04:31,980 INFO L185 Difference]: Start difference. First operand has 46 places, 31 transitions, 187 flow. Second operand 4 states and 529 transitions. [2021-03-25 05:04:31,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 35 transitions, 247 flow [2021-03-25 05:04:31,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 35 transitions, 236 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 05:04:31,984 INFO L241 Difference]: Finished difference. Result has 48 places, 33 transitions, 223 flow [2021-03-25 05:04:31,984 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=223, PETRI_PLACES=48, PETRI_TRANSITIONS=33} [2021-03-25 05:04:31,985 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places. [2021-03-25 05:04:31,985 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:31,985 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 33 transitions, 223 flow [2021-03-25 05:04:31,985 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 33 transitions, 223 flow [2021-03-25 05:04:31,985 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 33 transitions, 223 flow [2021-03-25 05:04:31,996 INFO L129 PetriNetUnfolder]: 23/98 cut-off events. [2021-03-25 05:04:31,997 INFO L130 PetriNetUnfolder]: For 355/413 co-relation queries the response was YES. [2021-03-25 05:04:31,997 INFO L84 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 98 events. 23/98 cut-off events. For 355/413 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 413 event pairs, 2 based on Foata normal form. 4/101 useless extension candidates. Maximal degree in co-relation 335. Up to 46 conditions per place. [2021-03-25 05:04:31,998 INFO L142 LiptonReduction]: Number of co-enabled transitions 268 [2021-03-25 05:04:32,001 INFO L154 LiptonReduction]: Checked pairs total: 181 [2021-03-25 05:04:32,001 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:04:32,001 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-25 05:04:32,002 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 33 transitions, 223 flow [2021-03-25 05:04:32,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 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 05:04:32,002 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:32,002 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:32,003 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 05:04:32,003 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:32,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:32,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1645268588, now seen corresponding path program 1 times [2021-03-25 05:04:32,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:32,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044594278] [2021-03-25 05:04:32,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:32,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:32,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:04:32,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:32,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 05:04:32,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:32,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 05:04:32,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:32,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:04:32,089 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 05:04:32,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044594278] [2021-03-25 05:04:32,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:32,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 05:04:32,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509903713] [2021-03-25 05:04:32,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:04:32,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:32,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:04:32,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:04:32,091 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 172 [2021-03-25 05:04:32,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 33 transitions, 223 flow. Second operand has 6 states, 6 states have (on average 126.83333333333333) internal successors, (761), 6 states have internal predecessors, (761), 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 05:04:32,092 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:32,092 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 172 [2021-03-25 05:04:32,092 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:32,241 INFO L129 PetriNetUnfolder]: 120/295 cut-off events. [2021-03-25 05:04:32,242 INFO L130 PetriNetUnfolder]: For 1191/1352 co-relation queries the response was YES. [2021-03-25 05:04:32,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1050 conditions, 295 events. 120/295 cut-off events. For 1191/1352 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1603 event pairs, 13 based on Foata normal form. 45/336 useless extension candidates. Maximal degree in co-relation 1028. Up to 146 conditions per place. [2021-03-25 05:04:32,244 INFO L132 encePairwiseOnDemand]: 165/172 looper letters, 11 selfloop transitions, 20 changer transitions 3/48 dead transitions. [2021-03-25 05:04:32,244 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 48 transitions, 353 flow [2021-03-25 05:04:32,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 05:04:32,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 05:04:32,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 909 transitions. [2021-03-25 05:04:32,247 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7549833887043189 [2021-03-25 05:04:32,247 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 909 transitions. [2021-03-25 05:04:32,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 909 transitions. [2021-03-25 05:04:32,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:32,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 909 transitions. [2021-03-25 05:04:32,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 129.85714285714286) internal successors, (909), 7 states have internal predecessors, (909), 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 05:04:32,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 172.0) internal successors, (1376), 8 states have internal predecessors, (1376), 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 05:04:32,252 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 172.0) internal successors, (1376), 8 states have internal predecessors, (1376), 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 05:04:32,252 INFO L185 Difference]: Start difference. First operand has 48 places, 33 transitions, 223 flow. Second operand 7 states and 909 transitions. [2021-03-25 05:04:32,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 48 transitions, 353 flow [2021-03-25 05:04:32,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 48 transitions, 330 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-25 05:04:32,255 INFO L241 Difference]: Finished difference. Result has 54 places, 41 transitions, 309 flow [2021-03-25 05:04:32,255 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=309, PETRI_PLACES=54, PETRI_TRANSITIONS=41} [2021-03-25 05:04:32,255 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 8 predicate places. [2021-03-25 05:04:32,255 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:32,256 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 41 transitions, 309 flow [2021-03-25 05:04:32,256 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 41 transitions, 309 flow [2021-03-25 05:04:32,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 41 transitions, 309 flow [2021-03-25 05:04:32,274 INFO L129 PetriNetUnfolder]: 37/141 cut-off events. [2021-03-25 05:04:32,274 INFO L130 PetriNetUnfolder]: For 785/847 co-relation queries the response was YES. [2021-03-25 05:04:32,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 141 events. 37/141 cut-off events. For 785/847 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 728 event pairs, 3 based on Foata normal form. 5/145 useless extension candidates. Maximal degree in co-relation 569. Up to 67 conditions per place. [2021-03-25 05:04:32,276 INFO L142 LiptonReduction]: Number of co-enabled transitions 324 [2021-03-25 05:04:32,281 INFO L154 LiptonReduction]: Checked pairs total: 263 [2021-03-25 05:04:32,281 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:04:32,281 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-03-25 05:04:32,282 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 41 transitions, 309 flow [2021-03-25 05:04:32,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 126.83333333333333) internal successors, (761), 6 states have internal predecessors, (761), 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 05:04:32,283 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:32,283 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:32,283 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 05:04:32,283 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:32,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:32,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1082582437, now seen corresponding path program 1 times [2021-03-25 05:04:32,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:32,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217184468] [2021-03-25 05:04:32,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:32,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:32,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:32,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:04:32,347 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 05:04:32,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:04:32,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:32,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:04:32,355 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 05:04:32,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217184468] [2021-03-25 05:04:32,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:32,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:04:32,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423064832] [2021-03-25 05:04:32,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:04:32,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:32,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:04:32,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:04:32,357 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 172 [2021-03-25 05:04:32,357 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 41 transitions, 309 flow. Second operand has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:04:32,357 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:32,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 172 [2021-03-25 05:04:32,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:32,441 INFO L129 PetriNetUnfolder]: 151/409 cut-off events. [2021-03-25 05:04:32,441 INFO L130 PetriNetUnfolder]: For 1739/1828 co-relation queries the response was YES. [2021-03-25 05:04:32,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1307 conditions, 409 events. 151/409 cut-off events. For 1739/1828 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 2710 event pairs, 54 based on Foata normal form. 48/429 useless extension candidates. Maximal degree in co-relation 1283. Up to 214 conditions per place. [2021-03-25 05:04:32,444 INFO L132 encePairwiseOnDemand]: 166/172 looper letters, 8 selfloop transitions, 8 changer transitions 0/51 dead transitions. [2021-03-25 05:04:32,444 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 51 transitions, 361 flow [2021-03-25 05:04:32,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:04:32,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:04:32,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 708 transitions. [2021-03-25 05:04:32,446 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8232558139534883 [2021-03-25 05:04:32,446 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 708 transitions. [2021-03-25 05:04:32,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 708 transitions. [2021-03-25 05:04:32,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:32,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 708 transitions. [2021-03-25 05:04:32,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 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 05:04:32,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 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 05:04:32,450 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 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 05:04:32,450 INFO L185 Difference]: Start difference. First operand has 54 places, 41 transitions, 309 flow. Second operand 5 states and 708 transitions. [2021-03-25 05:04:32,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 51 transitions, 361 flow [2021-03-25 05:04:32,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 51 transitions, 333 flow, removed 10 selfloop flow, removed 2 redundant places. [2021-03-25 05:04:32,455 INFO L241 Difference]: Finished difference. Result has 59 places, 48 transitions, 341 flow [2021-03-25 05:04:32,455 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=341, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2021-03-25 05:04:32,455 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 13 predicate places. [2021-03-25 05:04:32,455 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:32,456 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 48 transitions, 341 flow [2021-03-25 05:04:32,456 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 48 transitions, 341 flow [2021-03-25 05:04:32,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 48 transitions, 341 flow [2021-03-25 05:04:32,501 INFO L129 PetriNetUnfolder]: 147/406 cut-off events. [2021-03-25 05:04:32,501 INFO L130 PetriNetUnfolder]: For 2129/2302 co-relation queries the response was YES. [2021-03-25 05:04:32,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1509 conditions, 406 events. 147/406 cut-off events. For 2129/2302 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 2712 event pairs, 48 based on Foata normal form. 23/410 useless extension candidates. Maximal degree in co-relation 1484. Up to 205 conditions per place. [2021-03-25 05:04:32,507 INFO L142 LiptonReduction]: Number of co-enabled transitions 430 [2021-03-25 05:04:32,517 INFO L154 LiptonReduction]: Checked pairs total: 134 [2021-03-25 05:04:32,517 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:04:32,517 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 62 [2021-03-25 05:04:32,519 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 47 transitions, 335 flow [2021-03-25 05:04:32,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:04:32,519 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:32,519 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:32,519 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 05:04:32,520 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:32,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:32,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1995857178, now seen corresponding path program 1 times [2021-03-25 05:04:32,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:32,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668849035] [2021-03-25 05:04:32,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:32,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:32,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:04:32,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:32,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:04:32,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:32,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:04:32,558 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 05:04:32,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668849035] [2021-03-25 05:04:32,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:32,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:04:32,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053843235] [2021-03-25 05:04:32,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:04:32,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:32,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:04:32,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:04:32,560 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 172 [2021-03-25 05:04:32,560 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 47 transitions, 335 flow. Second operand has 4 states, 4 states have (on average 145.25) internal successors, (581), 4 states have internal predecessors, (581), 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 05:04:32,560 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:32,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 172 [2021-03-25 05:04:32,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:32,690 INFO L129 PetriNetUnfolder]: 233/579 cut-off events. [2021-03-25 05:04:32,690 INFO L130 PetriNetUnfolder]: For 4191/4467 co-relation queries the response was YES. [2021-03-25 05:04:32,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2061 conditions, 579 events. 233/579 cut-off events. For 4191/4467 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 4007 event pairs, 88 based on Foata normal form. 53/584 useless extension candidates. Maximal degree in co-relation 2034. Up to 315 conditions per place. [2021-03-25 05:04:32,695 INFO L132 encePairwiseOnDemand]: 168/172 looper letters, 4 selfloop transitions, 3 changer transitions 2/46 dead transitions. [2021-03-25 05:04:32,695 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 46 transitions, 343 flow [2021-03-25 05:04:32,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:04:32,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:04:32,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 729 transitions. [2021-03-25 05:04:32,697 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8476744186046512 [2021-03-25 05:04:32,697 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 729 transitions. [2021-03-25 05:04:32,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 729 transitions. [2021-03-25 05:04:32,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:32,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 729 transitions. [2021-03-25 05:04:32,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.8) internal successors, (729), 5 states have internal predecessors, (729), 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 05:04:32,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 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 05:04:32,701 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 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 05:04:32,701 INFO L185 Difference]: Start difference. First operand has 59 places, 47 transitions, 335 flow. Second operand 5 states and 729 transitions. [2021-03-25 05:04:32,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 46 transitions, 343 flow [2021-03-25 05:04:32,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 46 transitions, 335 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-25 05:04:32,712 INFO L241 Difference]: Finished difference. Result has 61 places, 44 transitions, 322 flow [2021-03-25 05:04:32,712 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=322, PETRI_PLACES=61, PETRI_TRANSITIONS=44} [2021-03-25 05:04:32,713 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 15 predicate places. [2021-03-25 05:04:32,713 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:32,713 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 44 transitions, 322 flow [2021-03-25 05:04:32,713 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 44 transitions, 322 flow [2021-03-25 05:04:32,713 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 44 transitions, 322 flow [2021-03-25 05:04:32,755 INFO L129 PetriNetUnfolder]: 136/368 cut-off events. [2021-03-25 05:04:32,755 INFO L130 PetriNetUnfolder]: For 2633/2775 co-relation queries the response was YES. [2021-03-25 05:04:32,757 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1372 conditions, 368 events. 136/368 cut-off events. For 2633/2775 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2266 event pairs, 48 based on Foata normal form. 12/361 useless extension candidates. Maximal degree in co-relation 1346. Up to 183 conditions per place. [2021-03-25 05:04:32,761 INFO L142 LiptonReduction]: Number of co-enabled transitions 292 [2021-03-25 05:04:32,819 INFO L154 LiptonReduction]: Checked pairs total: 26 [2021-03-25 05:04:32,819 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 05:04:32,819 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 106 [2021-03-25 05:04:32,820 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 44 transitions, 330 flow [2021-03-25 05:04:32,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 145.25) internal successors, (581), 4 states have internal predecessors, (581), 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 05:04:32,820 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:32,820 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:32,820 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 05:04:32,820 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:32,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:32,821 INFO L82 PathProgramCache]: Analyzing trace with hash 912936358, now seen corresponding path program 2 times [2021-03-25 05:04:32,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:32,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373999534] [2021-03-25 05:04:32,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:32,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:32,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:04:32,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:32,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:04:32,893 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 05:04:32,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:04:32,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:32,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:04:32,901 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 05:04:32,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373999534] [2021-03-25 05:04:32,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:32,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 05:04:32,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897690085] [2021-03-25 05:04:32,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 05:04:32,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:32,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 05:04:32,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 05:04:32,903 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 174 [2021-03-25 05:04:32,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 44 transitions, 330 flow. Second operand has 5 states, 5 states have (on average 140.8) internal successors, (704), 5 states have internal predecessors, (704), 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 05:04:32,904 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:32,904 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 174 [2021-03-25 05:04:32,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:32,977 INFO L129 PetriNetUnfolder]: 79/269 cut-off events. [2021-03-25 05:04:32,978 INFO L130 PetriNetUnfolder]: For 1049/1164 co-relation queries the response was YES. [2021-03-25 05:04:32,979 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1061 conditions, 269 events. 79/269 cut-off events. For 1049/1164 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1619 event pairs, 7 based on Foata normal form. 80/345 useless extension candidates. Maximal degree in co-relation 1033. Up to 151 conditions per place. [2021-03-25 05:04:32,980 INFO L132 encePairwiseOnDemand]: 168/174 looper letters, 5 selfloop transitions, 11 changer transitions 3/54 dead transitions. [2021-03-25 05:04:32,980 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 54 transitions, 426 flow [2021-03-25 05:04:32,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:04:32,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:04:32,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 861 transitions. [2021-03-25 05:04:32,983 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8247126436781609 [2021-03-25 05:04:32,983 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 861 transitions. [2021-03-25 05:04:32,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 861 transitions. [2021-03-25 05:04:32,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:32,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 861 transitions. [2021-03-25 05:04:32,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 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 05:04:32,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 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 05:04:32,987 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 174.0) internal successors, (1218), 7 states have internal predecessors, (1218), 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 05:04:32,987 INFO L185 Difference]: Start difference. First operand has 59 places, 44 transitions, 330 flow. Second operand 6 states and 861 transitions. [2021-03-25 05:04:32,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 54 transitions, 426 flow [2021-03-25 05:04:32,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 54 transitions, 411 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-25 05:04:32,993 INFO L241 Difference]: Finished difference. Result has 63 places, 51 transitions, 403 flow [2021-03-25 05:04:32,993 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=403, PETRI_PLACES=63, PETRI_TRANSITIONS=51} [2021-03-25 05:04:32,993 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 17 predicate places. [2021-03-25 05:04:32,994 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:32,994 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 51 transitions, 403 flow [2021-03-25 05:04:32,994 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 51 transitions, 403 flow [2021-03-25 05:04:32,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 51 transitions, 403 flow [2021-03-25 05:04:33,024 INFO L129 PetriNetUnfolder]: 74/262 cut-off events. [2021-03-25 05:04:33,024 INFO L130 PetriNetUnfolder]: For 1052/1118 co-relation queries the response was YES. [2021-03-25 05:04:33,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1109 conditions, 262 events. 74/262 cut-off events. For 1052/1118 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1561 event pairs, 7 based on Foata normal form. 6/264 useless extension candidates. Maximal degree in co-relation 1081. Up to 145 conditions per place. [2021-03-25 05:04:33,027 INFO L142 LiptonReduction]: Number of co-enabled transitions 316 [2021-03-25 05:04:33,041 INFO L154 LiptonReduction]: Checked pairs total: 20 [2021-03-25 05:04:33,041 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:04:33,041 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-03-25 05:04:33,042 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 50 transitions, 395 flow [2021-03-25 05:04:33,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 140.8) internal successors, (704), 5 states have internal predecessors, (704), 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 05:04:33,042 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:33,042 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:33,042 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 05:04:33,042 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:33,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:33,043 INFO L82 PathProgramCache]: Analyzing trace with hash -823142623, now seen corresponding path program 1 times [2021-03-25 05:04:33,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:33,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86327475] [2021-03-25 05:04:33,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:33,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:33,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:04:33,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:33,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 05:04:33,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:33,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 05:04:33,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:33,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:04:33,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:33,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 05:04:33,139 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 05:04:33,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86327475] [2021-03-25 05:04:33,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:33,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 05:04:33,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292860297] [2021-03-25 05:04:33,140 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:04:33,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:33,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:04:33,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:04:33,141 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 174 [2021-03-25 05:04:33,142 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 50 transitions, 395 flow. Second operand has 6 states, 6 states have (on average 125.16666666666667) internal successors, (751), 6 states have internal predecessors, (751), 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 05:04:33,142 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:33,142 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 174 [2021-03-25 05:04:33,142 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:33,272 INFO L129 PetriNetUnfolder]: 79/243 cut-off events. [2021-03-25 05:04:33,273 INFO L130 PetriNetUnfolder]: For 1178/1290 co-relation queries the response was YES. [2021-03-25 05:04:33,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1113 conditions, 243 events. 79/243 cut-off events. For 1178/1290 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1259 event pairs, 10 based on Foata normal form. 6/244 useless extension candidates. Maximal degree in co-relation 1083. Up to 109 conditions per place. [2021-03-25 05:04:33,275 INFO L132 encePairwiseOnDemand]: 164/174 looper letters, 16 selfloop transitions, 15 changer transitions 4/55 dead transitions. [2021-03-25 05:04:33,275 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 55 transitions, 489 flow [2021-03-25 05:04:33,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:04:33,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:04:33,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 640 transitions. [2021-03-25 05:04:33,277 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.735632183908046 [2021-03-25 05:04:33,277 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 640 transitions. [2021-03-25 05:04:33,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 640 transitions. [2021-03-25 05:04:33,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:33,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 640 transitions. [2021-03-25 05:04:33,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 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 05:04:33,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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 05:04:33,280 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 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 05:04:33,280 INFO L185 Difference]: Start difference. First operand has 63 places, 50 transitions, 395 flow. Second operand 5 states and 640 transitions. [2021-03-25 05:04:33,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 55 transitions, 489 flow [2021-03-25 05:04:33,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 55 transitions, 461 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-03-25 05:04:33,285 INFO L241 Difference]: Finished difference. Result has 64 places, 50 transitions, 409 flow [2021-03-25 05:04:33,285 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=409, PETRI_PLACES=64, PETRI_TRANSITIONS=50} [2021-03-25 05:04:33,285 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 18 predicate places. [2021-03-25 05:04:33,285 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:33,285 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 50 transitions, 409 flow [2021-03-25 05:04:33,285 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 50 transitions, 409 flow [2021-03-25 05:04:33,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 50 transitions, 409 flow [2021-03-25 05:04:33,310 INFO L129 PetriNetUnfolder]: 64/210 cut-off events. [2021-03-25 05:04:33,310 INFO L130 PetriNetUnfolder]: For 1095/1145 co-relation queries the response was YES. [2021-03-25 05:04:33,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 895 conditions, 210 events. 64/210 cut-off events. For 1095/1145 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1085 event pairs, 6 based on Foata normal form. 4/210 useless extension candidates. Maximal degree in co-relation 866. Up to 62 conditions per place. [2021-03-25 05:04:33,313 INFO L142 LiptonReduction]: Number of co-enabled transitions 234 [2021-03-25 05:04:33,529 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-25 05:04:33,930 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 89 [2021-03-25 05:04:34,058 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-25 05:04:34,354 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-03-25 05:04:34,487 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-03-25 05:04:34,494 INFO L154 LiptonReduction]: Checked pairs total: 7 [2021-03-25 05:04:34,494 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 05:04:34,495 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1210 [2021-03-25 05:04:34,495 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 50 transitions, 423 flow [2021-03-25 05:04:34,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 125.16666666666667) internal successors, (751), 6 states have internal predecessors, (751), 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 05:04:34,495 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:34,495 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:34,496 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 05:04:34,496 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:34,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:34,496 INFO L82 PathProgramCache]: Analyzing trace with hash 2135614844, now seen corresponding path program 1 times [2021-03-25 05:04:34,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:34,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639728613] [2021-03-25 05:04:34,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:34,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:34,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 05:04:34,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:34,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 05:04:34,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:34,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 05:04:34,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:34,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 05:04:34,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:34,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 05:04:34,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:34,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 05:04:34,605 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 05:04:34,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639728613] [2021-03-25 05:04:34,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:34,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:04:34,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967695767] [2021-03-25 05:04:34,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 05:04:34,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:34,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 05:04:34,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 05:04:34,610 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 176 [2021-03-25 05:04:34,611 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 50 transitions, 423 flow. Second operand has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 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 05:04:34,611 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:34,611 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 176 [2021-03-25 05:04:34,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:34,744 INFO L129 PetriNetUnfolder]: 74/228 cut-off events. [2021-03-25 05:04:34,745 INFO L130 PetriNetUnfolder]: For 1330/1449 co-relation queries the response was YES. [2021-03-25 05:04:34,746 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1082 conditions, 228 events. 74/228 cut-off events. For 1330/1449 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1159 event pairs, 7 based on Foata normal form. 13/235 useless extension candidates. Maximal degree in co-relation 1051. Up to 100 conditions per place. [2021-03-25 05:04:34,747 INFO L132 encePairwiseOnDemand]: 167/176 looper letters, 20 selfloop transitions, 13 changer transitions 1/54 dead transitions. [2021-03-25 05:04:34,747 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 54 transitions, 520 flow [2021-03-25 05:04:34,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:04:34,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:04:34,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 655 transitions. [2021-03-25 05:04:34,749 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7443181818181818 [2021-03-25 05:04:34,749 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 655 transitions. [2021-03-25 05:04:34,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 655 transitions. [2021-03-25 05:04:34,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:34,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 655 transitions. [2021-03-25 05:04:34,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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 05:04:34,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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 05:04:34,753 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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 05:04:34,753 INFO L185 Difference]: Start difference. First operand has 64 places, 50 transitions, 423 flow. Second operand 5 states and 655 transitions. [2021-03-25 05:04:34,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 54 transitions, 520 flow [2021-03-25 05:04:34,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 54 transitions, 488 flow, removed 7 selfloop flow, removed 3 redundant places. [2021-03-25 05:04:34,758 INFO L241 Difference]: Finished difference. Result has 66 places, 51 transitions, 435 flow [2021-03-25 05:04:34,759 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=435, PETRI_PLACES=66, PETRI_TRANSITIONS=51} [2021-03-25 05:04:34,759 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 20 predicate places. [2021-03-25 05:04:34,759 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:34,759 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 51 transitions, 435 flow [2021-03-25 05:04:34,759 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 51 transitions, 435 flow [2021-03-25 05:04:34,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 51 transitions, 435 flow [2021-03-25 05:04:34,784 INFO L129 PetriNetUnfolder]: 72/225 cut-off events. [2021-03-25 05:04:34,785 INFO L130 PetriNetUnfolder]: For 1152/1221 co-relation queries the response was YES. [2021-03-25 05:04:34,786 INFO L84 FinitePrefix]: Finished finitePrefix Result has 960 conditions, 225 events. 72/225 cut-off events. For 1152/1221 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1165 event pairs, 4 based on Foata normal form. 10/231 useless extension candidates. Maximal degree in co-relation 931. Up to 73 conditions per place. [2021-03-25 05:04:34,787 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-25 05:04:34,792 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 05:04:34,792 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:04:34,792 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-25 05:04:34,792 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 51 transitions, 435 flow [2021-03-25 05:04:34,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 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 05:04:34,793 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:34,793 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:34,793 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 05:04:34,793 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:34,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:34,793 INFO L82 PathProgramCache]: Analyzing trace with hash 139878840, now seen corresponding path program 1 times [2021-03-25 05:04:34,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:34,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196679006] [2021-03-25 05:04:34,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:34,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:34,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 05:04:34,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:34,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 05:04:34,881 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.0 percent of original size [2021-03-25 05:04:34,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 05:04:34,907 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-03-25 05:04:34,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 05:04:34,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:34,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 05:04:34,930 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 05:04:34,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196679006] [2021-03-25 05:04:34,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:34,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 05:04:34,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25954536] [2021-03-25 05:04:34,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:04:34,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:34,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:04:34,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:04:34,932 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 176 [2021-03-25 05:04:34,932 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 51 transitions, 435 flow. Second operand has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:04:34,933 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:34,933 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 176 [2021-03-25 05:04:34,933 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:35,080 INFO L129 PetriNetUnfolder]: 76/235 cut-off events. [2021-03-25 05:04:35,080 INFO L130 PetriNetUnfolder]: For 1418/1540 co-relation queries the response was YES. [2021-03-25 05:04:35,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 235 events. 76/235 cut-off events. For 1418/1540 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1206 event pairs, 6 based on Foata normal form. 19/250 useless extension candidates. Maximal degree in co-relation 1101. Up to 113 conditions per place. [2021-03-25 05:04:35,082 INFO L132 encePairwiseOnDemand]: 168/176 looper letters, 19 selfloop transitions, 6 changer transitions 12/57 dead transitions. [2021-03-25 05:04:35,082 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 57 transitions, 561 flow [2021-03-25 05:04:35,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:04:35,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:04:35,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 624 transitions. [2021-03-25 05:04:35,085 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7090909090909091 [2021-03-25 05:04:35,085 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 624 transitions. [2021-03-25 05:04:35,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 624 transitions. [2021-03-25 05:04:35,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:35,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 624 transitions. [2021-03-25 05:04:35,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 124.8) internal successors, (624), 5 states have internal predecessors, (624), 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 05:04:35,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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 05:04:35,088 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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 05:04:35,088 INFO L185 Difference]: Start difference. First operand has 66 places, 51 transitions, 435 flow. Second operand 5 states and 624 transitions. [2021-03-25 05:04:35,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 57 transitions, 561 flow [2021-03-25 05:04:35,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 57 transitions, 524 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-25 05:04:35,093 INFO L241 Difference]: Finished difference. Result has 68 places, 45 transitions, 375 flow [2021-03-25 05:04:35,094 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=375, PETRI_PLACES=68, PETRI_TRANSITIONS=45} [2021-03-25 05:04:35,094 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 22 predicate places. [2021-03-25 05:04:35,094 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:35,094 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 45 transitions, 375 flow [2021-03-25 05:04:35,094 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 45 transitions, 375 flow [2021-03-25 05:04:35,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 45 transitions, 375 flow [2021-03-25 05:04:35,119 INFO L129 PetriNetUnfolder]: 62/200 cut-off events. [2021-03-25 05:04:35,119 INFO L130 PetriNetUnfolder]: For 1144/1210 co-relation queries the response was YES. [2021-03-25 05:04:35,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 863 conditions, 200 events. 62/200 cut-off events. For 1144/1210 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 990 event pairs, 4 based on Foata normal form. 7/203 useless extension candidates. Maximal degree in co-relation 833. Up to 62 conditions per place. [2021-03-25 05:04:35,122 INFO L142 LiptonReduction]: Number of co-enabled transitions 216 [2021-03-25 05:04:35,125 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 05:04:35,125 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:04:35,126 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-03-25 05:04:35,126 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 45 transitions, 375 flow [2021-03-25 05:04:35,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:04:35,126 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:35,126 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:35,127 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 05:04:35,127 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:35,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:35,127 INFO L82 PathProgramCache]: Analyzing trace with hash 565932638, now seen corresponding path program 2 times [2021-03-25 05:04:35,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:35,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514047526] [2021-03-25 05:04:35,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:35,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:35,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 05:04:35,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:35,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 05:04:35,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:35,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:04:35,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:35,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 05:04:35,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:35,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 05:04:35,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:35,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:04:35,293 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 05:04:35,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514047526] [2021-03-25 05:04:35,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:35,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 05:04:35,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569802989] [2021-03-25 05:04:35,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 05:04:35,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:35,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 05:04:35,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-25 05:04:35,295 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 176 [2021-03-25 05:04:35,296 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 45 transitions, 375 flow. Second operand has 8 states, 8 states have (on average 123.875) internal successors, (991), 8 states have internal predecessors, (991), 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 05:04:35,296 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:35,296 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 176 [2021-03-25 05:04:35,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:35,460 INFO L129 PetriNetUnfolder]: 71/216 cut-off events. [2021-03-25 05:04:35,460 INFO L130 PetriNetUnfolder]: For 1433/1549 co-relation queries the response was YES. [2021-03-25 05:04:35,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1049 conditions, 216 events. 71/216 cut-off events. For 1433/1549 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1056 event pairs, 5 based on Foata normal form. 31/243 useless extension candidates. Maximal degree in co-relation 1017. Up to 98 conditions per place. [2021-03-25 05:04:35,462 INFO L132 encePairwiseOnDemand]: 170/176 looper letters, 15 selfloop transitions, 8 changer transitions 8/51 dead transitions. [2021-03-25 05:04:35,462 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 51 transitions, 490 flow [2021-03-25 05:04:35,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:04:35,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:04:35,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 633 transitions. [2021-03-25 05:04:35,464 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7193181818181819 [2021-03-25 05:04:35,464 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 633 transitions. [2021-03-25 05:04:35,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 633 transitions. [2021-03-25 05:04:35,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:35,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 633 transitions. [2021-03-25 05:04:35,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 126.6) internal successors, (633), 5 states have internal predecessors, (633), 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 05:04:35,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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 05:04:35,468 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 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 05:04:35,468 INFO L185 Difference]: Start difference. First operand has 65 places, 45 transitions, 375 flow. Second operand 5 states and 633 transitions. [2021-03-25 05:04:35,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 51 transitions, 490 flow [2021-03-25 05:04:35,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 51 transitions, 460 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-03-25 05:04:35,473 INFO L241 Difference]: Finished difference. Result has 65 places, 42 transitions, 357 flow [2021-03-25 05:04:35,473 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=357, PETRI_PLACES=65, PETRI_TRANSITIONS=42} [2021-03-25 05:04:35,474 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 19 predicate places. [2021-03-25 05:04:35,474 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:35,474 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 42 transitions, 357 flow [2021-03-25 05:04:35,474 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 42 transitions, 357 flow [2021-03-25 05:04:35,474 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 42 transitions, 357 flow [2021-03-25 05:04:35,499 INFO L129 PetriNetUnfolder]: 61/190 cut-off events. [2021-03-25 05:04:35,499 INFO L130 PetriNetUnfolder]: For 921/948 co-relation queries the response was YES. [2021-03-25 05:04:35,500 INFO L84 FinitePrefix]: Finished finitePrefix Result has 837 conditions, 190 events. 61/190 cut-off events. For 921/948 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 915 event pairs, 5 based on Foata normal form. 8/194 useless extension candidates. Maximal degree in co-relation 808. Up to 61 conditions per place. [2021-03-25 05:04:35,502 INFO L142 LiptonReduction]: Number of co-enabled transitions 196 [2021-03-25 05:04:35,652 INFO L154 LiptonReduction]: Checked pairs total: 6 [2021-03-25 05:04:35,653 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:04:35,653 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 179 [2021-03-25 05:04:35,653 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 42 transitions, 372 flow [2021-03-25 05:04:35,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 123.875) internal successors, (991), 8 states have internal predecessors, (991), 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 05:04:35,665 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:35,665 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 05:04:35,666 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 05:04:35,666 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:35,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:35,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1352867815, now seen corresponding path program 1 times [2021-03-25 05:04:35,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:35,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828746284] [2021-03-25 05:04:35,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:35,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:35,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:04:35,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:35,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:04:35,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:35,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:04:35,724 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 05:04:35,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:04:35,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:35,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:04:35,758 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 05:04:35,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828746284] [2021-03-25 05:04:35,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:35,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:04:35,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916645787] [2021-03-25 05:04:35,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:04:35,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:35,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:04:35,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:04:35,760 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 177 [2021-03-25 05:04:35,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 42 transitions, 372 flow. Second operand has 6 states, 6 states have (on average 142.83333333333334) internal successors, (857), 6 states have internal predecessors, (857), 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 05:04:35,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:35,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 177 [2021-03-25 05:04:35,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:35,827 INFO L129 PetriNetUnfolder]: 44/145 cut-off events. [2021-03-25 05:04:35,828 INFO L130 PetriNetUnfolder]: For 592/666 co-relation queries the response was YES. [2021-03-25 05:04:35,828 INFO L84 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 145 events. 44/145 cut-off events. For 592/666 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 634 event pairs, 2 based on Foata normal form. 59/201 useless extension candidates. Maximal degree in co-relation 657. Up to 50 conditions per place. [2021-03-25 05:04:35,829 INFO L132 encePairwiseOnDemand]: 170/177 looper letters, 2 selfloop transitions, 11 changer transitions 6/44 dead transitions. [2021-03-25 05:04:35,829 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 44 transitions, 419 flow [2021-03-25 05:04:35,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 05:04:35,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 05:04:35,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1013 transitions. [2021-03-25 05:04:35,832 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8175948345439871 [2021-03-25 05:04:35,832 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1013 transitions. [2021-03-25 05:04:35,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1013 transitions. [2021-03-25 05:04:35,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:35,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1013 transitions. [2021-03-25 05:04:35,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 144.71428571428572) internal successors, (1013), 7 states have internal predecessors, (1013), 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 05:04:35,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 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 05:04:35,836 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 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 05:04:35,836 INFO L185 Difference]: Start difference. First operand has 62 places, 42 transitions, 372 flow. Second operand 7 states and 1013 transitions. [2021-03-25 05:04:35,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 44 transitions, 419 flow [2021-03-25 05:04:35,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 44 transitions, 330 flow, removed 20 selfloop flow, removed 11 redundant places. [2021-03-25 05:04:35,839 INFO L241 Difference]: Finished difference. Result has 60 places, 38 transitions, 295 flow [2021-03-25 05:04:35,840 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=295, PETRI_PLACES=60, PETRI_TRANSITIONS=38} [2021-03-25 05:04:35,840 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 14 predicate places. [2021-03-25 05:04:35,840 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:35,840 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 38 transitions, 295 flow [2021-03-25 05:04:35,840 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 38 transitions, 295 flow [2021-03-25 05:04:35,841 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 38 transitions, 295 flow [2021-03-25 05:04:35,848 INFO L129 PetriNetUnfolder]: 19/68 cut-off events. [2021-03-25 05:04:35,849 INFO L130 PetriNetUnfolder]: For 195/207 co-relation queries the response was YES. [2021-03-25 05:04:35,849 INFO L84 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 68 events. 19/68 cut-off events. For 195/207 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 183 event pairs, 1 based on Foata normal form. 3/70 useless extension candidates. Maximal degree in co-relation 276. Up to 21 conditions per place. [2021-03-25 05:04:35,850 INFO L142 LiptonReduction]: Number of co-enabled transitions 136 [2021-03-25 05:04:36,015 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 66 [2021-03-25 05:04:36,356 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 85 [2021-03-25 05:04:36,976 WARN L205 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 180 [2021-03-25 05:04:37,199 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-03-25 05:04:39,185 WARN L205 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 334 DAG size of output: 260 [2021-03-25 05:04:39,687 WARN L205 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2021-03-25 05:04:40,047 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-25 05:04:40,267 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2021-03-25 05:04:40,790 WARN L205 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-03-25 05:04:41,293 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 252 [2021-03-25 05:04:41,298 INFO L154 LiptonReduction]: Checked pairs total: 40 [2021-03-25 05:04:41,298 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-25 05:04:41,298 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5458 [2021-03-25 05:04:41,299 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 34 transitions, 292 flow [2021-03-25 05:04:41,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 142.83333333333334) internal successors, (857), 6 states have internal predecessors, (857), 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 05:04:41,299 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:41,299 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 05:04:41,299 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-25 05:04:41,299 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:41,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:41,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1865588842, now seen corresponding path program 1 times [2021-03-25 05:04:41,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:41,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851714189] [2021-03-25 05:04:41,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:04:41,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:41,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 05:04:41,360 INFO L142 QuantifierPusher]: treesize reduction 9, result has 72.7 percent of original size [2021-03-25 05:04:41,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-25 05:04:41,377 INFO L142 QuantifierPusher]: treesize reduction 26, result has 60.6 percent of original size [2021-03-25 05:04:41,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-25 05:04:41,409 INFO L142 QuantifierPusher]: treesize reduction 26, result has 62.3 percent of original size [2021-03-25 05:04:41,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 05:04:41,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:41,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-25 05:04:41,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:41,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:04:41,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:04:41,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 05:04:41,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:04:41,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851714189] [2021-03-25 05:04:41,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:04:41,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 05:04:41,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839136089] [2021-03-25 05:04:41,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-25 05:04:41,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:04:41,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-25 05:04:41,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-25 05:04:41,488 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 183 [2021-03-25 05:04:41,489 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 34 transitions, 292 flow. Second operand has 8 states, 8 states have (on average 123.0) internal successors, (984), 8 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:04:41,489 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:04:41,489 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 183 [2021-03-25 05:04:41,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:04:41,649 INFO L129 PetriNetUnfolder]: 28/89 cut-off events. [2021-03-25 05:04:41,649 INFO L130 PetriNetUnfolder]: For 511/569 co-relation queries the response was YES. [2021-03-25 05:04:41,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 89 events. 28/89 cut-off events. For 511/569 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 322 event pairs, 0 based on Foata normal form. 21/105 useless extension candidates. Maximal degree in co-relation 412. Up to 36 conditions per place. [2021-03-25 05:04:41,650 INFO L132 encePairwiseOnDemand]: 175/183 looper letters, 12 selfloop transitions, 7 changer transitions 7/41 dead transitions. [2021-03-25 05:04:41,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 41 transitions, 412 flow [2021-03-25 05:04:41,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 05:04:41,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 05:04:41,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 874 transitions. [2021-03-25 05:04:41,653 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.682279469164715 [2021-03-25 05:04:41,653 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 874 transitions. [2021-03-25 05:04:41,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 874 transitions. [2021-03-25 05:04:41,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:04:41,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 874 transitions. [2021-03-25 05:04:41,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 124.85714285714286) internal successors, (874), 7 states have internal predecessors, (874), 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 05:04:41,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 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 05:04:41,657 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 183.0) internal successors, (1464), 8 states have internal predecessors, (1464), 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 05:04:41,657 INFO L185 Difference]: Start difference. First operand has 54 places, 34 transitions, 292 flow. Second operand 7 states and 874 transitions. [2021-03-25 05:04:41,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 41 transitions, 412 flow [2021-03-25 05:04:41,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 41 transitions, 347 flow, removed 19 selfloop flow, removed 10 redundant places. [2021-03-25 05:04:41,659 INFO L241 Difference]: Finished difference. Result has 52 places, 32 transitions, 247 flow [2021-03-25 05:04:41,660 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=247, PETRI_PLACES=52, PETRI_TRANSITIONS=32} [2021-03-25 05:04:41,660 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 6 predicate places. [2021-03-25 05:04:41,660 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:04:41,660 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 32 transitions, 247 flow [2021-03-25 05:04:41,660 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 32 transitions, 247 flow [2021-03-25 05:04:41,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 32 transitions, 247 flow [2021-03-25 05:04:41,667 INFO L129 PetriNetUnfolder]: 18/60 cut-off events. [2021-03-25 05:04:41,667 INFO L130 PetriNetUnfolder]: For 155/156 co-relation queries the response was YES. [2021-03-25 05:04:41,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 60 events. 18/60 cut-off events. For 155/156 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 178 event pairs, 0 based on Foata normal form. 1/61 useless extension candidates. Maximal degree in co-relation 216. Up to 19 conditions per place. [2021-03-25 05:04:41,668 INFO L142 LiptonReduction]: Number of co-enabled transitions 58 [2021-03-25 05:04:41,871 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-03-25 05:04:42,300 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 87 [2021-03-25 05:04:42,425 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-03-25 05:04:42,429 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-25 05:04:42,429 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:04:42,429 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 769 [2021-03-25 05:04:42,429 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 32 transitions, 250 flow [2021-03-25 05:04:42,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 123.0) internal successors, (984), 8 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:04:42,430 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:04:42,430 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:04:42,430 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-25 05:04:42,430 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:04:42,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:04:42,431 INFO L82 PathProgramCache]: Analyzing trace with hash -945610214, now seen corresponding path program 1 times [2021-03-25 05:04:42,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:04:42,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578262181] [2021-03-25 05:04:42,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:04:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 05:04:42,454 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 05:04:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 05:04:42,479 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 05:04:42,510 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 05:04:42,510 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 05:04:42,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-25 05:04:42,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 05:04:42 BasicIcfg [2021-03-25 05:04:42,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 05:04:42,599 INFO L168 Benchmark]: Toolchain (without parser) took 27368.76 ms. Allocated memory was 255.9 MB in the beginning and 736.1 MB in the end (delta: 480.2 MB). Free memory was 234.7 MB in the beginning and 317.6 MB in the end (delta: -82.9 MB). Peak memory consumption was 395.9 MB. Max. memory is 16.0 GB. [2021-03-25 05:04:42,599 INFO L168 Benchmark]: CDTParser took 0.47 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 05:04:42,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 534.99 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 234.7 MB in the beginning and 312.3 MB in the end (delta: -77.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-25 05:04:42,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.30 ms. Allocated memory is still 352.3 MB. Free memory was 311.6 MB in the beginning and 308.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 05:04:42,599 INFO L168 Benchmark]: Boogie Preprocessor took 59.35 ms. Allocated memory is still 352.3 MB. Free memory was 308.8 MB in the beginning and 306.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 05:04:42,599 INFO L168 Benchmark]: RCFGBuilder took 1592.57 ms. Allocated memory is still 352.3 MB. Free memory was 306.7 MB in the beginning and 219.6 MB in the end (delta: 87.1 MB). Peak memory consumption was 90.6 MB. Max. memory is 16.0 GB. [2021-03-25 05:04:42,600 INFO L168 Benchmark]: TraceAbstraction took 25110.98 ms. Allocated memory was 352.3 MB in the beginning and 736.1 MB in the end (delta: 383.8 MB). Free memory was 219.6 MB in the beginning and 317.6 MB in the end (delta: -97.9 MB). Peak memory consumption was 285.8 MB. Max. memory is 16.0 GB. [2021-03-25 05:04:42,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 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 534.99 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 234.7 MB in the beginning and 312.3 MB in the end (delta: -77.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 63.30 ms. Allocated memory is still 352.3 MB. Free memory was 311.6 MB in the beginning and 308.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 59.35 ms. Allocated memory is still 352.3 MB. Free memory was 308.8 MB in the beginning and 306.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1592.57 ms. Allocated memory is still 352.3 MB. Free memory was 306.7 MB in the beginning and 219.6 MB in the end (delta: 87.1 MB). Peak memory consumption was 90.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 25110.98 ms. Allocated memory was 352.3 MB in the beginning and 736.1 MB in the end (delta: 383.8 MB). Free memory was 219.6 MB in the beginning and 317.6 MB in the end (delta: -97.9 MB). Peak memory consumption was 285.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7555.5ms, 100 PlacesBefore, 46 PlacesAfterwards, 92 TransitionsBefore, 37 TransitionsAfterwards, 1602 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 66 TotalNumberOfCompositions, 2709 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1263, positive: 1184, positive conditional: 0, positive unconditional: 1184, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 779, positive: 754, positive conditional: 0, positive unconditional: 754, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 779, positive: 754, positive conditional: 0, positive unconditional: 754, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1263, positive: 430, positive conditional: 0, positive unconditional: 430, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 779, unknown conditional: 0, unknown unconditional: 779] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3605.7ms, 43 PlacesBefore, 31 PlacesAfterwards, 32 TransitionsBefore, 22 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 4 FixpointIterations, 9 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 1040 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 281, positive: 202, positive conditional: 0, positive unconditional: 202, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 40, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 40, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 281, positive: 173, positive conditional: 0, positive unconditional: 173, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 40, unknown conditional: 0, unknown unconditional: 40] , Statistics on independence cache: Total cache size (in pairs): 82, Positive cache size: 59, Positive conditional cache size: 0, Positive unconditional cache size: 59, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 837.5ms, 32 PlacesBefore, 30 PlacesAfterwards, 21 TransitionsBefore, 20 TransitionsAfterwards, 188 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 438 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 94, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 94, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 86, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.2ms, 31 PlacesBefore, 31 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 214 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 196 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 53, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 53, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 92, Positive cache size: 65, Positive conditional cache size: 0, Positive unconditional cache size: 65, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.4ms, 33 PlacesBefore, 33 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 230 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 123 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 42, positive: 33, positive conditional: 0, positive unconditional: 33, 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: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 42, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.2ms, 35 PlacesBefore, 35 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 230 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 149 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37, positive: 26, positive conditional: 0, positive unconditional: 26, 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: 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: 37, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.1ms, 38 PlacesBefore, 38 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 129 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 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: 29, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 96, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.1ms, 39 PlacesBefore, 39 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 97 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 37, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 98, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.7ms, 42 PlacesBefore, 42 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 171 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 62, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 12, negative conditional: 0, negative unconditional: 12, 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: 62, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 98, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.7ms, 46 PlacesBefore, 46 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 155 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 62, positive: 51, positive conditional: 0, positive unconditional: 51, 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: 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: 62, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 98, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.0ms, 48 PlacesBefore, 48 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 268 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 181 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 62, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 62, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 99, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.5ms, 54 PlacesBefore, 54 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 324 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 263 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 92, positive: 79, positive conditional: 0, positive unconditional: 79, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 92, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 61.7ms, 59 PlacesBefore, 59 PlacesAfterwards, 48 TransitionsBefore, 47 TransitionsAfterwards, 430 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 134 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 83, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 6, negative conditional: 0, negative unconditional: 6, 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: 83, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 91, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 106.3ms, 61 PlacesBefore, 59 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 292 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 26 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26, positive: 26, positive conditional: 0, positive unconditional: 26, 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: 26, positive: 26, positive conditional: 0, positive unconditional: 26, 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): 85, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.4ms, 63 PlacesBefore, 63 PlacesAfterwards, 51 TransitionsBefore, 50 TransitionsAfterwards, 316 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 20 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20, positive: 20, positive conditional: 0, positive unconditional: 20, 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: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 20, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 84, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1209.0ms, 64 PlacesBefore, 64 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.7ms, 66 PlacesBefore, 66 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 248 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): 71, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.0ms, 68 PlacesBefore, 65 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 216 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): 71, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 178.5ms, 65 PlacesBefore, 62 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 6 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 6, positive: 5, positive conditional: 0, positive unconditional: 5, 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): 69, Positive cache size: 57, Positive conditional cache size: 0, Positive unconditional cache size: 57, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5458.0ms, 60 PlacesBefore, 54 PlacesAfterwards, 38 TransitionsBefore, 34 TransitionsAfterwards, 136 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 40 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40, positive: 40, positive conditional: 0, positive unconditional: 40, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 40, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 768.8ms, 52 PlacesBefore, 50 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 58 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 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: 2, positive: 1, positive conditional: 0, positive unconditional: 1, 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): 40, Positive cache size: 37, Positive conditional cache size: 0, Positive unconditional cache size: 37, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L712] 0 _Bool main$tmp_guard0; [L713] 0 _Bool main$tmp_guard1; [L715] 0 int x = 0; [L717] 0 int y = 0; [L718] 0 _Bool y$flush_delayed; [L719] 0 int y$mem_tmp; [L720] 0 _Bool y$r_buff0_thd0; [L721] 0 _Bool y$r_buff0_thd1; [L722] 0 _Bool y$r_buff0_thd2; [L723] 0 _Bool y$r_buff0_thd3; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$r_buff1_thd3; [L728] 0 _Bool y$read_delayed; [L729] 0 int *y$read_delayed_var; [L730] 0 int y$w_buff0; [L731] 0 _Bool y$w_buff0_used; [L732] 0 int y$w_buff1; [L733] 0 _Bool y$w_buff1_used; [L734] 0 _Bool weak$$choice0; [L735] 0 _Bool weak$$choice2; [L813] 0 pthread_t t2192; [L814] FCALL, FORK 0 pthread_create(&t2192, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L739] 1 y$w_buff1 = y$w_buff0 [L740] 1 y$w_buff0 = 2 [L741] 1 y$w_buff1_used = y$w_buff0_used [L742] 1 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L744] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L745] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L746] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L747] 1 y$r_buff1_thd3 = y$r_buff0_thd3 [L748] 1 y$r_buff0_thd1 = (_Bool)1 [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L815] 0 pthread_t t2193; [L816] FCALL, FORK 0 pthread_create(&t2193, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L768] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L772] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L773] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L774] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L774] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L775] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L775] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L817] 0 pthread_t t2194; [L818] FCALL, FORK 0 pthread_create(&t2194, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L785] 3 __unbuffered_p2_EAX = x [L788] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L791] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L791] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L792] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L792] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L793] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L793] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L794] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L794] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L795] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L795] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L754] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L754] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L755] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L755] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L756] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L756] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L757] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L757] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L758] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L758] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L761] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L763] 1 return 0; [L778] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L780] 2 return 0; [L798] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L800] 3 return 0; [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L825] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L826] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L827] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L827] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L828] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L828] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L831] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L832] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L833] 0 y$flush_delayed = weak$$choice2 [L834] 0 y$mem_tmp = y [L835] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L835] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L836] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L836] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0) [L836] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L836] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L837] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L837] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1) [L837] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L837] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L838] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L838] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used) [L838] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L838] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L839] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L839] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L840] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0) [L840] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L840] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L841] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L841] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L842] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 2) [L843] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L843] 0 y = y$flush_delayed ? y$mem_tmp : y [L844] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=55, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 94 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 24925.1ms, OverallIterations: 21, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2244.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7619.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 99 SDtfs, 35 SDslu, 27 SDs, 0 SdLazy, 549 SolverSat, 144 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 689.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 866.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=435occurred in iteration=16, InterpolantAutomatonStates: 92, 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: 59.3ms SsaConstructionTime, 503.7ms SatisfiabilityAnalysisTime, 1648.2ms InterpolantComputationTime, 300 NumberOfCodeBlocks, 300 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 264 ConstructedInterpolants, 0 QuantifiedInterpolants, 2479 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...