/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 19:51:40,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 19:51:40,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 19:51:40,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 19:51:40,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 19:51:40,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 19:51:40,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 19:51:40,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 19:51:40,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 19:51:40,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 19:51:40,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 19:51:40,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 19:51:40,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 19:51:40,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 19:51:40,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 19:51:40,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 19:51:40,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 19:51:40,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 19:51:40,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 19:51:40,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 19:51:40,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 19:51:40,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 19:51:40,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 19:51:40,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 19:51:40,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 19:51:40,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 19:51:40,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 19:51:40,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 19:51:40,985 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-SemanticLbe.epf [2021-03-24 19:51:41,017 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 19:51:41,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 19:51:41,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 19:51:41,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 19:51:41,021 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 19:51:41,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 19:51:41,022 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 19:51:41,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 19:51:41,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 19:51:41,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 19:51:41,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 19:51:41,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 19:51:41,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 19:51:41,023 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 19:51:41,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 19:51:41,024 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 19:51:41,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 19:51:41,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 19:51:41,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 19:51:41,024 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 19:51:41,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 19:51:41,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 19:51:41,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 19:51:41,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 19:51:41,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 19:51:41,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 19:51:41,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 19:51:41,025 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 19:51:41,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 19:51:41,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 19:51:41,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 19:51:41,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 19:51:41,354 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 19:51:41,354 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 19:51:41,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_pso.oepc.i [2021-03-24 19:51:41,420 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d39bfcd1/d8de93a18808414ca4c85c1abf8bbdd4/FLAGab1b99fd1 [2021-03-24 19:51:42,107 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 19:51:42,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_pso.oepc.i [2021-03-24 19:51:42,126 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d39bfcd1/d8de93a18808414ca4c85c1abf8bbdd4/FLAGab1b99fd1 [2021-03-24 19:51:42,425 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d39bfcd1/d8de93a18808414ca4c85c1abf8bbdd4 [2021-03-24 19:51:42,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 19:51:42,428 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 19:51:42,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 19:51:42,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 19:51:42,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 19:51:42,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:51:42" (1/1) ... [2021-03-24 19:51:42,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d4b9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:42, skipping insertion in model container [2021-03-24 19:51:42,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 07:51:42" (1/1) ... [2021-03-24 19:51:42,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 19:51:42,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 19:51:42,621 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/safe011_pso.oepc.i[950,963] [2021-03-24 19:51:42,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:51:42,859 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 19:51:42,870 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/safe011_pso.oepc.i[950,963] [2021-03-24 19:51:42,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 19:51:42,988 INFO L208 MainTranslator]: Completed translation [2021-03-24 19:51:42,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:42 WrapperNode [2021-03-24 19:51:42,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 19:51:42,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 19:51:42,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 19:51:42,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 19:51:42,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:42" (1/1) ... [2021-03-24 19:51:43,023 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:42" (1/1) ... [2021-03-24 19:51:43,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 19:51:43,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 19:51:43,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 19:51:43,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 19:51:43,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:42" (1/1) ... [2021-03-24 19:51:43,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:42" (1/1) ... [2021-03-24 19:51:43,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:42" (1/1) ... [2021-03-24 19:51:43,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:42" (1/1) ... [2021-03-24 19:51:43,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:42" (1/1) ... [2021-03-24 19:51:43,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:42" (1/1) ... [2021-03-24 19:51:43,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:42" (1/1) ... [2021-03-24 19:51:43,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 19:51:43,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 19:51:43,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 19:51:43,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 19:51:43,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:42" (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 [2021-03-24 19:51:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 19:51:43,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 19:51:43,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 19:51:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 19:51:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-24 19:51:43,179 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-24 19:51:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-24 19:51:43,179 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-24 19:51:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-24 19:51:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-24 19:51:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 19:51:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 19:51:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 19:51:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 19:51:43,181 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 19:51:44,926 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 19:51:44,927 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-24 19:51:44,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:51:44 BoogieIcfgContainer [2021-03-24 19:51:44,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 19:51:44,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 19:51:44,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 19:51:44,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 19:51:44,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 07:51:42" (1/3) ... [2021-03-24 19:51:44,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196b3253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:51:44, skipping insertion in model container [2021-03-24 19:51:44,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 07:51:42" (2/3) ... [2021-03-24 19:51:44,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@196b3253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 07:51:44, skipping insertion in model container [2021-03-24 19:51:44,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 07:51:44" (3/3) ... [2021-03-24 19:51:44,934 INFO L111 eAbstractionObserver]: Analyzing ICFG safe011_pso.oepc.i [2021-03-24 19:51:44,940 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 19:51:44,944 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-24 19:51:44,944 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 19:51:44,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,981 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,981 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,982 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,982 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,982 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,982 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,982 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,982 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,982 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,983 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,983 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,983 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,983 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,983 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,983 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,984 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,984 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,984 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,984 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,984 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,984 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,984 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,985 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,986 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,986 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,986 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,986 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,986 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,986 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,987 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,987 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,987 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,987 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,988 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,989 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,989 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,989 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,989 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,989 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,989 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,990 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,990 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,990 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,990 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,990 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,992 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,992 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,992 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,992 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,992 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,993 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,993 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,993 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,995 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,995 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,995 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,995 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,995 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,995 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,996 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,996 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,996 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,996 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,996 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,996 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,996 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,997 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,997 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,997 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,997 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,998 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,998 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,998 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,999 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:44,999 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,000 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,001 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,001 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,001 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,003 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,003 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,003 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,006 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,009 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,011 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,011 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,011 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,016 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,018 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,018 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,018 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,018 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,018 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,019 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,019 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,019 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 19:51:45,020 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 19:51:45,037 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-24 19:51:45,058 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 19:51:45,059 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 19:51:45,059 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 19:51:45,059 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 19:51:45,059 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 19:51:45,059 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 19:51:45,059 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 19:51:45,059 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 19:51:45,068 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 97 transitions, 209 flow [2021-03-24 19:51:45,108 INFO L129 PetriNetUnfolder]: 2/94 cut-off events. [2021-03-24 19:51:45,109 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:51:45,120 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 69 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2021-03-24 19:51:45,120 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 97 transitions, 209 flow [2021-03-24 19:51:45,125 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 94 transitions, 197 flow [2021-03-24 19:51:45,126 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 19:51:45,141 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 94 transitions, 197 flow [2021-03-24 19:51:45,145 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 94 transitions, 197 flow [2021-03-24 19:51:45,149 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 94 transitions, 197 flow [2021-03-24 19:51:45,181 INFO L129 PetriNetUnfolder]: 2/94 cut-off events. [2021-03-24 19:51:45,181 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:51:45,182 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2021-03-24 19:51:45,186 INFO L142 LiptonReduction]: Number of co-enabled transitions 1694 [2021-03-24 19:51:46,886 WARN L205 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 186 [2021-03-24 19:51:47,196 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2021-03-24 19:51:48,626 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 310 DAG size of output: 266 [2021-03-24 19:51:49,173 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2021-03-24 19:51:49,361 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-24 19:51:49,786 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2021-03-24 19:51:49,925 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-24 19:51:51,012 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-24 19:51:51,288 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-03-24 19:51:51,901 WARN L205 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-24 19:51:52,527 WARN L205 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-03-24 19:51:52,765 INFO L154 LiptonReduction]: Checked pairs total: 3065 [2021-03-24 19:51:52,765 INFO L156 LiptonReduction]: Total number of compositions: 64 [2021-03-24 19:51:52,767 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7642 [2021-03-24 19:51:52,774 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-24 19:51:52,774 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:51:52,774 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:52,775 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:51:52,775 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:52,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:52,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1571617397, now seen corresponding path program 1 times [2021-03-24 19:51:52,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:52,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705822807] [2021-03-24 19:51:52,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:52,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:53,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:53,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:53,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:53,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705822807] [2021-03-24 19:51:53,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:53,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 19:51:53,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391471033] [2021-03-24 19:51:53,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 19:51:53,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:53,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 19:51:53,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 19:51:53,084 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 161 [2021-03-24 19:51:53,086 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:53,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:53,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 161 [2021-03-24 19:51:53,088 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:53,183 INFO L129 PetriNetUnfolder]: 69/200 cut-off events. [2021-03-24 19:51:53,183 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:51:53,184 INFO L84 FinitePrefix]: Finished finitePrefix Result has 328 conditions, 200 events. 69/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 953 event pairs, 54 based on Foata normal form. 11/193 useless extension candidates. Maximal degree in co-relation 309. Up to 89 conditions per place. [2021-03-24 19:51:53,186 INFO L132 encePairwiseOnDemand]: 157/161 looper letters, 9 selfloop transitions, 2 changer transitions 5/41 dead transitions. [2021-03-24 19:51:53,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 41 transitions, 117 flow [2021-03-24 19:51:53,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 19:51:53,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 19:51:53,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 433 transitions. [2021-03-24 19:51:53,204 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8964803312629399 [2021-03-24 19:51:53,205 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 433 transitions. [2021-03-24 19:51:53,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 433 transitions. [2021-03-24 19:51:53,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:53,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 433 transitions. [2021-03-24 19:51:53,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:53,230 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) [2021-03-24 19:51:53,231 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) [2021-03-24 19:51:53,233 INFO L185 Difference]: Start difference. First operand has 48 places, 39 transitions, 87 flow. Second operand 3 states and 433 transitions. [2021-03-24 19:51:53,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 41 transitions, 117 flow [2021-03-24 19:51:53,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 114 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-24 19:51:53,237 INFO L241 Difference]: Finished difference. Result has 45 places, 32 transitions, 74 flow [2021-03-24 19:51:53,239 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=45, PETRI_TRANSITIONS=32} [2021-03-24 19:51:53,239 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2021-03-24 19:51:53,240 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 32 transitions, 74 flow [2021-03-24 19:51:53,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:53,240 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:53,240 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:51:53,240 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 19:51:53,241 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:53,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:53,242 INFO L82 PathProgramCache]: Analyzing trace with hash -72729481, now seen corresponding path program 1 times [2021-03-24 19:51:53,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:53,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167601150] [2021-03-24 19:51:53,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:53,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:53,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:53,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:53,387 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:51:53,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:51:53,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:53,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167601150] [2021-03-24 19:51:53,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:53,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 19:51:53,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937546616] [2021-03-24 19:51:53,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:51:53,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:53,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:51:53,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:51:53,396 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 161 [2021-03-24 19:51:53,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 32 transitions, 74 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) [2021-03-24 19:51:53,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:53,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 161 [2021-03-24 19:51:53,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:53,425 INFO L129 PetriNetUnfolder]: 6/61 cut-off events. [2021-03-24 19:51:53,426 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 19:51:53,426 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 61 events. 6/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 151 event pairs, 2 based on Foata normal form. 4/62 useless extension candidates. Maximal degree in co-relation 74. Up to 15 conditions per place. [2021-03-24 19:51:53,426 INFO L132 encePairwiseOnDemand]: 156/161 looper letters, 4 selfloop transitions, 3 changer transitions 5/39 dead transitions. [2021-03-24 19:51:53,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 39 transitions, 112 flow [2021-03-24 19:51:53,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:51:53,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:51:53,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 704 transitions. [2021-03-24 19:51:53,428 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8745341614906832 [2021-03-24 19:51:53,429 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 704 transitions. [2021-03-24 19:51:53,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 704 transitions. [2021-03-24 19:51:53,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:53,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 704 transitions. [2021-03-24 19:51:53,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 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) [2021-03-24 19:51:53,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:53,433 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:53,433 INFO L185 Difference]: Start difference. First operand has 45 places, 32 transitions, 74 flow. Second operand 5 states and 704 transitions. [2021-03-24 19:51:53,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 39 transitions, 112 flow [2021-03-24 19:51:53,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 39 transitions, 108 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 19:51:53,434 INFO L241 Difference]: Finished difference. Result has 46 places, 34 transitions, 97 flow [2021-03-24 19:51:53,435 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=97, PETRI_PLACES=46, PETRI_TRANSITIONS=34} [2021-03-24 19:51:53,435 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2021-03-24 19:51:53,435 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 34 transitions, 97 flow [2021-03-24 19:51:53,436 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) [2021-03-24 19:51:53,436 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:53,436 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] [2021-03-24 19:51:53,436 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 19:51:53,436 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:53,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:53,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1983214692, now seen corresponding path program 1 times [2021-03-24 19:51:53,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:53,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001634895] [2021-03-24 19:51:53,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:53,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:53,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:53,508 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:51:53,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:51:53,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:53,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001634895] [2021-03-24 19:51:53,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:53,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 19:51:53,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433324221] [2021-03-24 19:51:53,514 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:51:53,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:53,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:51:53,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:51:53,517 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 161 [2021-03-24 19:51:53,518 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 34 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:53,518 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:53,518 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 161 [2021-03-24 19:51:53,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:53,550 INFO L129 PetriNetUnfolder]: 7/64 cut-off events. [2021-03-24 19:51:53,550 INFO L130 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2021-03-24 19:51:53,551 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 64 events. 7/64 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 179 event pairs, 3 based on Foata normal form. 5/64 useless extension candidates. Maximal degree in co-relation 101. Up to 17 conditions per place. [2021-03-24 19:51:53,551 INFO L132 encePairwiseOnDemand]: 157/161 looper letters, 2 selfloop transitions, 2 changer transitions 2/36 dead transitions. [2021-03-24 19:51:53,551 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 115 flow [2021-03-24 19:51:53,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:51:53,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:51:53,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 713 transitions. [2021-03-24 19:51:53,553 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8857142857142857 [2021-03-24 19:51:53,553 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 713 transitions. [2021-03-24 19:51:53,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 713 transitions. [2021-03-24 19:51:53,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:53,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 713 transitions. [2021-03-24 19:51:53,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:53,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:53,557 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:53,557 INFO L185 Difference]: Start difference. First operand has 46 places, 34 transitions, 97 flow. Second operand 5 states and 713 transitions. [2021-03-24 19:51:53,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 115 flow [2021-03-24 19:51:53,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 36 transitions, 110 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-24 19:51:53,559 INFO L241 Difference]: Finished difference. Result has 49 places, 34 transitions, 104 flow [2021-03-24 19:51:53,559 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=42, 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=5, PETRI_FLOW=104, PETRI_PLACES=49, PETRI_TRANSITIONS=34} [2021-03-24 19:51:53,560 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 1 predicate places. [2021-03-24 19:51:53,560 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 34 transitions, 104 flow [2021-03-24 19:51:53,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:53,560 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:53,560 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, 1] [2021-03-24 19:51:53,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 19:51:53,561 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:53,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:53,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1173740936, now seen corresponding path program 1 times [2021-03-24 19:51:53,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:53,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194796183] [2021-03-24 19:51:53,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:53,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:53,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:53,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:53,649 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:51:53,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:51:53,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:53,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194796183] [2021-03-24 19:51:53,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:53,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:51:53,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565767950] [2021-03-24 19:51:53,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:51:53,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:53,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:51:53,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:51:53,656 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 161 [2021-03-24 19:51:53,657 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 34 transitions, 104 flow. Second operand has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:53,657 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:53,658 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 161 [2021-03-24 19:51:53,658 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:53,714 INFO L129 PetriNetUnfolder]: 8/65 cut-off events. [2021-03-24 19:51:53,715 INFO L130 PetriNetUnfolder]: For 59/68 co-relation queries the response was YES. [2021-03-24 19:51:53,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 65 events. 8/65 cut-off events. For 59/68 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 214 event pairs, 1 based on Foata normal form. 6/67 useless extension candidates. Maximal degree in co-relation 122. Up to 17 conditions per place. [2021-03-24 19:51:53,715 INFO L132 encePairwiseOnDemand]: 155/161 looper letters, 3 selfloop transitions, 4 changer transitions 3/38 dead transitions. [2021-03-24 19:51:53,716 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 38 transitions, 143 flow [2021-03-24 19:51:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-24 19:51:53,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-24 19:51:53,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 822 transitions. [2021-03-24 19:51:53,718 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8509316770186336 [2021-03-24 19:51:53,718 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 822 transitions. [2021-03-24 19:51:53,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 822 transitions. [2021-03-24 19:51:53,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:53,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 822 transitions. [2021-03-24 19:51:53,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:53,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:53,723 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 161.0) internal successors, (1127), 7 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:53,723 INFO L185 Difference]: Start difference. First operand has 49 places, 34 transitions, 104 flow. Second operand 6 states and 822 transitions. [2021-03-24 19:51:53,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 38 transitions, 143 flow [2021-03-24 19:51:53,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 38 transitions, 131 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-24 19:51:53,725 INFO L241 Difference]: Finished difference. Result has 52 places, 35 transitions, 121 flow [2021-03-24 19:51:53,725 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=121, PETRI_PLACES=52, PETRI_TRANSITIONS=35} [2021-03-24 19:51:53,726 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 4 predicate places. [2021-03-24 19:51:53,726 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 35 transitions, 121 flow [2021-03-24 19:51:53,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:53,726 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:53,726 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, 1, 1] [2021-03-24 19:51:53,726 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 19:51:53,727 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:53,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:53,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1097658608, now seen corresponding path program 1 times [2021-03-24 19:51:53,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:53,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753068141] [2021-03-24 19:51:53,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:53,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:53,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:51:53,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:51:53,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:51:53,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:53,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:51:53,864 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:51:53,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:51:53,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:53,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753068141] [2021-03-24 19:51:53,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:53,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 19:51:53,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907422376] [2021-03-24 19:51:53,872 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 19:51:53,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:53,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 19:51:53,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 19:51:53,876 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 161 [2021-03-24 19:51:53,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 35 transitions, 121 flow. Second operand has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:53,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:53,880 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 161 [2021-03-24 19:51:53,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:54,098 INFO L129 PetriNetUnfolder]: 207/441 cut-off events. [2021-03-24 19:51:54,098 INFO L130 PetriNetUnfolder]: For 486/533 co-relation queries the response was YES. [2021-03-24 19:51:54,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1008 conditions, 441 events. 207/441 cut-off events. For 486/533 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2271 event pairs, 74 based on Foata normal form. 34/455 useless extension candidates. Maximal degree in co-relation 978. Up to 296 conditions per place. [2021-03-24 19:51:54,102 INFO L132 encePairwiseOnDemand]: 152/161 looper letters, 10 selfloop transitions, 9 changer transitions 13/56 dead transitions. [2021-03-24 19:51:54,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 56 transitions, 243 flow [2021-03-24 19:51:54,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-24 19:51:54,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-24 19:51:54,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1027 transitions. [2021-03-24 19:51:54,105 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.797360248447205 [2021-03-24 19:51:54,105 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1027 transitions. [2021-03-24 19:51:54,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1027 transitions. [2021-03-24 19:51:54,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:54,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1027 transitions. [2021-03-24 19:51:54,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 128.375) internal successors, (1027), 8 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:54,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 161.0) internal successors, (1449), 9 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:54,111 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 161.0) internal successors, (1449), 9 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:54,111 INFO L185 Difference]: Start difference. First operand has 52 places, 35 transitions, 121 flow. Second operand 8 states and 1027 transitions. [2021-03-24 19:51:54,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 56 transitions, 243 flow [2021-03-24 19:51:54,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 56 transitions, 235 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-24 19:51:54,114 INFO L241 Difference]: Finished difference. Result has 58 places, 41 transitions, 175 flow [2021-03-24 19:51:54,114 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=175, PETRI_PLACES=58, PETRI_TRANSITIONS=41} [2021-03-24 19:51:54,115 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 10 predicate places. [2021-03-24 19:51:54,115 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 41 transitions, 175 flow [2021-03-24 19:51:54,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:54,115 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:54,115 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, 1, 1, 1] [2021-03-24 19:51:54,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 19:51:54,115 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:54,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:54,116 INFO L82 PathProgramCache]: Analyzing trace with hash -111420069, now seen corresponding path program 1 times [2021-03-24 19:51:54,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:54,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022830998] [2021-03-24 19:51:54,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:54,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:54,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:51:54,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:51:54,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 19:51:54,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:51:54,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:51:54,260 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:51:54,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:51:54,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:54,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022830998] [2021-03-24 19:51:54,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:54,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 19:51:54,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953759657] [2021-03-24 19:51:54,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 19:51:54,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:54,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 19:51:54,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-03-24 19:51:54,269 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 161 [2021-03-24 19:51:54,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 41 transitions, 175 flow. Second operand has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:54,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:54,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 161 [2021-03-24 19:51:54,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:54,465 INFO L129 PetriNetUnfolder]: 196/418 cut-off events. [2021-03-24 19:51:54,466 INFO L130 PetriNetUnfolder]: For 1027/1161 co-relation queries the response was YES. [2021-03-24 19:51:54,467 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 418 events. 196/418 cut-off events. For 1027/1161 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2090 event pairs, 67 based on Foata normal form. 47/448 useless extension candidates. Maximal degree in co-relation 1286. Up to 288 conditions per place. [2021-03-24 19:51:54,471 INFO L132 encePairwiseOnDemand]: 152/161 looper letters, 11 selfloop transitions, 12 changer transitions 10/57 dead transitions. [2021-03-24 19:51:54,471 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 57 transitions, 331 flow [2021-03-24 19:51:54,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:51:54,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:51:54,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1157 transitions. [2021-03-24 19:51:54,475 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7984817115251898 [2021-03-24 19:51:54,475 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1157 transitions. [2021-03-24 19:51:54,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1157 transitions. [2021-03-24 19:51:54,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:54,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1157 transitions. [2021-03-24 19:51:54,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 128.55555555555554) internal successors, (1157), 9 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:54,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:54,480 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:54,480 INFO L185 Difference]: Start difference. First operand has 58 places, 41 transitions, 175 flow. Second operand 9 states and 1157 transitions. [2021-03-24 19:51:54,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 57 transitions, 331 flow [2021-03-24 19:51:54,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 57 transitions, 327 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-24 19:51:54,485 INFO L241 Difference]: Finished difference. Result has 66 places, 45 transitions, 247 flow [2021-03-24 19:51:54,486 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=247, PETRI_PLACES=66, PETRI_TRANSITIONS=45} [2021-03-24 19:51:54,486 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2021-03-24 19:51:54,486 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 45 transitions, 247 flow [2021-03-24 19:51:54,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:54,486 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:54,486 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, 1, 1, 1] [2021-03-24 19:51:54,487 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 19:51:54,487 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:54,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:54,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1311144777, now seen corresponding path program 1 times [2021-03-24 19:51:54,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:54,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242939295] [2021-03-24 19:51:54,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:54,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:54,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:54,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:51:54,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:51:54,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:51:54,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:51:54,610 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:51:54,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:51:54,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:54,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242939295] [2021-03-24 19:51:54,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:54,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-24 19:51:54,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690745723] [2021-03-24 19:51:54,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 19:51:54,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:54,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 19:51:54,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-24 19:51:54,619 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 161 [2021-03-24 19:51:54,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 45 transitions, 247 flow. Second operand has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:54,620 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:54,620 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 161 [2021-03-24 19:51:54,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:54,870 INFO L129 PetriNetUnfolder]: 222/482 cut-off events. [2021-03-24 19:51:54,870 INFO L130 PetriNetUnfolder]: For 2481/2660 co-relation queries the response was YES. [2021-03-24 19:51:54,873 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1809 conditions, 482 events. 222/482 cut-off events. For 2481/2660 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2578 event pairs, 52 based on Foata normal form. 55/520 useless extension candidates. Maximal degree in co-relation 1766. Up to 228 conditions per place. [2021-03-24 19:51:54,876 INFO L132 encePairwiseOnDemand]: 151/161 looper letters, 18 selfloop transitions, 17 changer transitions 14/73 dead transitions. [2021-03-24 19:51:54,876 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 73 transitions, 535 flow [2021-03-24 19:51:54,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 19:51:54,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 19:51:54,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1419 transitions. [2021-03-24 19:51:54,880 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8012422360248447 [2021-03-24 19:51:54,880 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1419 transitions. [2021-03-24 19:51:54,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1419 transitions. [2021-03-24 19:51:54,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:54,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1419 transitions. [2021-03-24 19:51:54,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 129.0) internal successors, (1419), 11 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:54,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:54,886 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 161.0) internal successors, (1932), 12 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:54,886 INFO L185 Difference]: Start difference. First operand has 66 places, 45 transitions, 247 flow. Second operand 11 states and 1419 transitions. [2021-03-24 19:51:54,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 73 transitions, 535 flow [2021-03-24 19:51:54,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 73 transitions, 477 flow, removed 27 selfloop flow, removed 5 redundant places. [2021-03-24 19:51:54,894 INFO L241 Difference]: Finished difference. Result has 74 places, 51 transitions, 329 flow [2021-03-24 19:51:54,894 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=329, PETRI_PLACES=74, PETRI_TRANSITIONS=51} [2021-03-24 19:51:54,894 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 26 predicate places. [2021-03-24 19:51:54,894 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 51 transitions, 329 flow [2021-03-24 19:51:54,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:54,895 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:54,895 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, 1, 1, 1, 1] [2021-03-24 19:51:54,896 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 19:51:54,896 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:54,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:54,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1810390032, now seen corresponding path program 1 times [2021-03-24 19:51:54,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:54,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204416613] [2021-03-24 19:51:54,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:54,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:54,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:51:54,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:51:54,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:54,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 19:51:55,018 INFO L142 QuantifierPusher]: treesize reduction 10, result has 84.4 percent of original size [2021-03-24 19:51:55,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 19:51:55,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:55,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 19:51:55,051 INFO L142 QuantifierPusher]: treesize reduction 37, result has 50.7 percent of original size [2021-03-24 19:51:55,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 19:51:55,080 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:51:55,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:51:55,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:55,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204416613] [2021-03-24 19:51:55,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:55,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-24 19:51:55,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690162249] [2021-03-24 19:51:55,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 19:51:55,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:55,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 19:51:55,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-03-24 19:51:55,093 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 161 [2021-03-24 19:51:55,095 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 51 transitions, 329 flow. Second operand has 8 states, 8 states have (on average 120.125) internal successors, (961), 8 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:55,096 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:55,096 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 161 [2021-03-24 19:51:55,096 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:55,411 INFO L129 PetriNetUnfolder]: 239/528 cut-off events. [2021-03-24 19:51:55,411 INFO L130 PetriNetUnfolder]: For 3248/3475 co-relation queries the response was YES. [2021-03-24 19:51:55,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2468 conditions, 528 events. 239/528 cut-off events. For 3248/3475 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3003 event pairs, 36 based on Foata normal form. 68/580 useless extension candidates. Maximal degree in co-relation 2419. Up to 351 conditions per place. [2021-03-24 19:51:55,417 INFO L132 encePairwiseOnDemand]: 150/161 looper letters, 28 selfloop transitions, 14 changer transitions 9/74 dead transitions. [2021-03-24 19:51:55,417 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 74 transitions, 629 flow [2021-03-24 19:51:55,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 19:51:55,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 19:51:55,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1225 transitions. [2021-03-24 19:51:55,420 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7608695652173914 [2021-03-24 19:51:55,420 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1225 transitions. [2021-03-24 19:51:55,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1225 transitions. [2021-03-24 19:51:55,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:55,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1225 transitions. [2021-03-24 19:51:55,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 122.5) internal successors, (1225), 10 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:55,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:55,428 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:55,428 INFO L185 Difference]: Start difference. First operand has 74 places, 51 transitions, 329 flow. Second operand 10 states and 1225 transitions. [2021-03-24 19:51:55,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 74 transitions, 629 flow [2021-03-24 19:51:55,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 74 transitions, 592 flow, removed 17 selfloop flow, removed 5 redundant places. [2021-03-24 19:51:55,437 INFO L241 Difference]: Finished difference. Result has 80 places, 62 transitions, 472 flow [2021-03-24 19:51:55,438 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=472, PETRI_PLACES=80, PETRI_TRANSITIONS=62} [2021-03-24 19:51:55,438 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 32 predicate places. [2021-03-24 19:51:55,438 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 62 transitions, 472 flow [2021-03-24 19:51:55,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 120.125) internal successors, (961), 8 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:55,438 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:55,439 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, 1, 1, 1, 1] [2021-03-24 19:51:55,439 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 19:51:55,439 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:55,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:55,439 INFO L82 PathProgramCache]: Analyzing trace with hash 795608727, now seen corresponding path program 1 times [2021-03-24 19:51:55,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:55,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134976034] [2021-03-24 19:51:55,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:55,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:55,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:55,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:55,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:55,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:55,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:51:55,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:55,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:51:55,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:55,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 19:51:55,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:55,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 19:51:55,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:55,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 19:51:55,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:55,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 19:51:55,600 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:51:55,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:51:55,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:55,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134976034] [2021-03-24 19:51:55,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:55,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-24 19:51:55,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010560967] [2021-03-24 19:51:55,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-24 19:51:55,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:55,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-24 19:51:55,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-03-24 19:51:55,610 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 161 [2021-03-24 19:51:55,611 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 62 transitions, 472 flow. Second operand has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:55,611 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:55,611 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 161 [2021-03-24 19:51:55,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:55,826 INFO L129 PetriNetUnfolder]: 237/519 cut-off events. [2021-03-24 19:51:55,826 INFO L130 PetriNetUnfolder]: For 3991/4403 co-relation queries the response was YES. [2021-03-24 19:51:55,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2648 conditions, 519 events. 237/519 cut-off events. For 3991/4403 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2877 event pairs, 57 based on Foata normal form. 66/567 useless extension candidates. Maximal degree in co-relation 2593. Up to 330 conditions per place. [2021-03-24 19:51:55,833 INFO L132 encePairwiseOnDemand]: 150/161 looper letters, 32 selfloop transitions, 16 changer transitions 7/77 dead transitions. [2021-03-24 19:51:55,833 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 77 transitions, 710 flow [2021-03-24 19:51:55,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 19:51:55,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 19:51:55,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1253 transitions. [2021-03-24 19:51:55,837 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7782608695652173 [2021-03-24 19:51:55,837 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1253 transitions. [2021-03-24 19:51:55,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1253 transitions. [2021-03-24 19:51:55,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:55,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1253 transitions. [2021-03-24 19:51:55,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 125.3) internal successors, (1253), 10 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:55,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:55,842 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 161.0) internal successors, (1771), 11 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:55,842 INFO L185 Difference]: Start difference. First operand has 80 places, 62 transitions, 472 flow. Second operand 10 states and 1253 transitions. [2021-03-24 19:51:55,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 77 transitions, 710 flow [2021-03-24 19:51:55,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 77 transitions, 683 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-03-24 19:51:55,851 INFO L241 Difference]: Finished difference. Result has 86 places, 66 transitions, 523 flow [2021-03-24 19:51:55,851 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=523, PETRI_PLACES=86, PETRI_TRANSITIONS=66} [2021-03-24 19:51:55,851 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 38 predicate places. [2021-03-24 19:51:55,851 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 66 transitions, 523 flow [2021-03-24 19:51:55,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:55,852 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:55,852 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, 1, 1, 1, 1] [2021-03-24 19:51:55,852 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 19:51:55,852 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:55,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:55,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1491407786, now seen corresponding path program 2 times [2021-03-24 19:51:55,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:55,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227605184] [2021-03-24 19:51:55,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:55,916 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:55,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:55,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:55,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 19:51:55,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:55,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:51:55,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:55,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:51:55,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:55,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 19:51:55,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:55,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:51:55,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:55,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 19:51:55,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:55,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:51:55,984 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:51:55,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:51:55,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:55,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227605184] [2021-03-24 19:51:55,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:55,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 19:51:55,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771419042] [2021-03-24 19:51:55,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-24 19:51:55,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:55,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-24 19:51:55,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-03-24 19:51:55,994 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 161 [2021-03-24 19:51:55,995 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 66 transitions, 523 flow. Second operand has 9 states, 9 states have (on average 120.11111111111111) internal successors, (1081), 9 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:55,995 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:55,995 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 161 [2021-03-24 19:51:55,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:56,171 INFO L129 PetriNetUnfolder]: 221/487 cut-off events. [2021-03-24 19:51:56,172 INFO L130 PetriNetUnfolder]: For 4199/4586 co-relation queries the response was YES. [2021-03-24 19:51:56,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2577 conditions, 487 events. 221/487 cut-off events. For 4199/4586 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 2683 event pairs, 45 based on Foata normal form. 87/557 useless extension candidates. Maximal degree in co-relation 2517. Up to 331 conditions per place. [2021-03-24 19:51:56,178 INFO L132 encePairwiseOnDemand]: 152/161 looper letters, 28 selfloop transitions, 20 changer transitions 8/78 dead transitions. [2021-03-24 19:51:56,178 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 78 transitions, 786 flow [2021-03-24 19:51:56,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:51:56,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:51:56,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1100 transitions. [2021-03-24 19:51:56,181 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.759144237405107 [2021-03-24 19:51:56,181 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1100 transitions. [2021-03-24 19:51:56,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1100 transitions. [2021-03-24 19:51:56,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:56,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1100 transitions. [2021-03-24 19:51:56,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 122.22222222222223) internal successors, (1100), 9 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,187 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,187 INFO L185 Difference]: Start difference. First operand has 86 places, 66 transitions, 523 flow. Second operand 9 states and 1100 transitions. [2021-03-24 19:51:56,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 78 transitions, 786 flow [2021-03-24 19:51:56,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 78 transitions, 756 flow, removed 5 selfloop flow, removed 8 redundant places. [2021-03-24 19:51:56,197 INFO L241 Difference]: Finished difference. Result has 87 places, 68 transitions, 589 flow [2021-03-24 19:51:56,198 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=589, PETRI_PLACES=87, PETRI_TRANSITIONS=68} [2021-03-24 19:51:56,198 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 39 predicate places. [2021-03-24 19:51:56,198 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 68 transitions, 589 flow [2021-03-24 19:51:56,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 120.11111111111111) internal successors, (1081), 9 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,198 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:56,199 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, 1, 1, 1, 1, 1] [2021-03-24 19:51:56,199 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 19:51:56,199 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:56,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:56,199 INFO L82 PathProgramCache]: Analyzing trace with hash 58271584, now seen corresponding path program 1 times [2021-03-24 19:51:56,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:56,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347920153] [2021-03-24 19:51:56,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:56,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:56,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:56,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:56,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:56,261 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:51:56,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:51:56,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:56,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:56,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:56,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347920153] [2021-03-24 19:51:56,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:56,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 19:51:56,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140199991] [2021-03-24 19:51:56,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 19:51:56,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:56,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 19:51:56,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 19:51:56,272 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 161 [2021-03-24 19:51:56,272 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 68 transitions, 589 flow. Second operand has 4 states, 4 states have (on average 134.75) internal successors, (539), 4 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,272 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:56,272 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 161 [2021-03-24 19:51:56,273 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:56,439 INFO L129 PetriNetUnfolder]: 318/742 cut-off events. [2021-03-24 19:51:56,440 INFO L130 PetriNetUnfolder]: For 4402/4580 co-relation queries the response was YES. [2021-03-24 19:51:56,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2764 conditions, 742 events. 318/742 cut-off events. For 4402/4580 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 5110 event pairs, 90 based on Foata normal form. 114/723 useless extension candidates. Maximal degree in co-relation 2708. Up to 394 conditions per place. [2021-03-24 19:51:56,448 INFO L132 encePairwiseOnDemand]: 155/161 looper letters, 11 selfloop transitions, 8 changer transitions 0/70 dead transitions. [2021-03-24 19:51:56,448 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 70 transitions, 533 flow [2021-03-24 19:51:56,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 19:51:56,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 19:51:56,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 690 transitions. [2021-03-24 19:51:56,450 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2021-03-24 19:51:56,450 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 690 transitions. [2021-03-24 19:51:56,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 690 transitions. [2021-03-24 19:51:56,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:56,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 690 transitions. [2021-03-24 19:51:56,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 138.0) internal successors, (690), 5 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,454 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,454 INFO L185 Difference]: Start difference. First operand has 87 places, 68 transitions, 589 flow. Second operand 5 states and 690 transitions. [2021-03-24 19:51:56,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 70 transitions, 533 flow [2021-03-24 19:51:56,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 70 transitions, 478 flow, removed 9 selfloop flow, removed 10 redundant places. [2021-03-24 19:51:56,462 INFO L241 Difference]: Finished difference. Result has 82 places, 66 transitions, 482 flow [2021-03-24 19:51:56,462 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=482, PETRI_PLACES=82, PETRI_TRANSITIONS=66} [2021-03-24 19:51:56,462 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 34 predicate places. [2021-03-24 19:51:56,462 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 66 transitions, 482 flow [2021-03-24 19:51:56,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 134.75) internal successors, (539), 4 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,463 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:56,463 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, 1, 1, 1, 1, 1, 1] [2021-03-24 19:51:56,463 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 19:51:56,463 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:56,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:56,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1404732292, now seen corresponding path program 1 times [2021-03-24 19:51:56,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:56,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48872943] [2021-03-24 19:51:56,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:56,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:56,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:56,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:56,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:56,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:56,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:56,544 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:51:56,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:51:56,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:56,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:56,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:56,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48872943] [2021-03-24 19:51:56,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:56,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 19:51:56,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597707243] [2021-03-24 19:51:56,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 19:51:56,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:56,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 19:51:56,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 19:51:56,554 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 161 [2021-03-24 19:51:56,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 66 transitions, 482 flow. Second operand has 5 states, 5 states have (on average 134.8) internal successors, (674), 5 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:56,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 161 [2021-03-24 19:51:56,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:56,674 INFO L129 PetriNetUnfolder]: 208/560 cut-off events. [2021-03-24 19:51:56,675 INFO L130 PetriNetUnfolder]: For 2236/3091 co-relation queries the response was YES. [2021-03-24 19:51:56,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2285 conditions, 560 events. 208/560 cut-off events. For 2236/3091 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3776 event pairs, 11 based on Foata normal form. 285/778 useless extension candidates. Maximal degree in co-relation 2233. Up to 287 conditions per place. [2021-03-24 19:51:56,682 INFO L132 encePairwiseOnDemand]: 155/161 looper letters, 8 selfloop transitions, 15 changer transitions 3/75 dead transitions. [2021-03-24 19:51:56,682 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 75 transitions, 571 flow [2021-03-24 19:51:56,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 19:51:56,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 19:51:56,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 966 transitions. [2021-03-24 19:51:56,685 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2021-03-24 19:51:56,685 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 966 transitions. [2021-03-24 19:51:56,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 966 transitions. [2021-03-24 19:51:56,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:56,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 966 transitions. [2021-03-24 19:51:56,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.0) internal successors, (966), 7 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 161.0) internal successors, (1288), 8 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,690 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 161.0) internal successors, (1288), 8 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,690 INFO L185 Difference]: Start difference. First operand has 82 places, 66 transitions, 482 flow. Second operand 7 states and 966 transitions. [2021-03-24 19:51:56,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 75 transitions, 571 flow [2021-03-24 19:51:56,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 75 transitions, 547 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-03-24 19:51:56,696 INFO L241 Difference]: Finished difference. Result has 87 places, 70 transitions, 532 flow [2021-03-24 19:51:56,696 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=532, PETRI_PLACES=87, PETRI_TRANSITIONS=70} [2021-03-24 19:51:56,696 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 39 predicate places. [2021-03-24 19:51:56,696 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 70 transitions, 532 flow [2021-03-24 19:51:56,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 134.8) internal successors, (674), 5 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,697 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:56,697 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:51:56,697 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 19:51:56,697 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:56,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:56,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1260009512, now seen corresponding path program 1 times [2021-03-24 19:51:56,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:56,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489588090] [2021-03-24 19:51:56,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:56,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:56,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:56,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:56,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:56,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:56,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:56,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:56,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:56,759 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 19:51:56,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 19:51:56,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:56,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:56,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:56,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489588090] [2021-03-24 19:51:56,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:56,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 19:51:56,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24092418] [2021-03-24 19:51:56,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 19:51:56,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:56,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 19:51:56,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 19:51:56,772 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 161 [2021-03-24 19:51:56,773 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 70 transitions, 532 flow. Second operand has 6 states, 6 states have (on average 134.83333333333334) internal successors, (809), 6 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,773 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:56,773 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 161 [2021-03-24 19:51:56,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:56,907 INFO L129 PetriNetUnfolder]: 181/498 cut-off events. [2021-03-24 19:51:56,908 INFO L130 PetriNetUnfolder]: For 3041/4619 co-relation queries the response was YES. [2021-03-24 19:51:56,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2311 conditions, 498 events. 181/498 cut-off events. For 3041/4619 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3355 event pairs, 2 based on Foata normal form. 257/689 useless extension candidates. Maximal degree in co-relation 2257. Up to 268 conditions per place. [2021-03-24 19:51:56,915 INFO L132 encePairwiseOnDemand]: 155/161 looper letters, 5 selfloop transitions, 19 changer transitions 4/77 dead transitions. [2021-03-24 19:51:56,915 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 77 transitions, 624 flow [2021-03-24 19:51:56,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:51:56,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:51:56,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1236 transitions. [2021-03-24 19:51:56,918 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8530020703933747 [2021-03-24 19:51:56,918 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1236 transitions. [2021-03-24 19:51:56,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1236 transitions. [2021-03-24 19:51:56,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:56,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1236 transitions. [2021-03-24 19:51:56,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 137.33333333333334) internal successors, (1236), 9 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,936 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,936 INFO L185 Difference]: Start difference. First operand has 87 places, 70 transitions, 532 flow. Second operand 9 states and 1236 transitions. [2021-03-24 19:51:56,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 77 transitions, 624 flow [2021-03-24 19:51:56,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 77 transitions, 541 flow, removed 33 selfloop flow, removed 9 redundant places. [2021-03-24 19:51:56,946 INFO L241 Difference]: Finished difference. Result has 89 places, 71 transitions, 510 flow [2021-03-24 19:51:56,946 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=510, PETRI_PLACES=89, PETRI_TRANSITIONS=71} [2021-03-24 19:51:56,946 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 41 predicate places. [2021-03-24 19:51:56,946 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 71 transitions, 510 flow [2021-03-24 19:51:56,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 134.83333333333334) internal successors, (809), 6 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:56,947 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:56,947 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:51:56,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-24 19:51:56,947 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:56,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:56,947 INFO L82 PathProgramCache]: Analyzing trace with hash -2144946485, now seen corresponding path program 1 times [2021-03-24 19:51:56,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:56,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079778064] [2021-03-24 19:51:56,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 19:51:57,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:57,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 19:51:57,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:57,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 19:51:57,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:57,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 19:51:57,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:57,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 19:51:57,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:57,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 19:51:57,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:57,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 19:51:57,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:57,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 19:51:57,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:57,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 19:51:57,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 19:51:57,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 19:51:57,113 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 19:51:57,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 19:51:57,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 19:51:57,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079778064] [2021-03-24 19:51:57,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 19:51:57,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-24 19:51:57,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171754256] [2021-03-24 19:51:57,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-24 19:51:57,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 19:51:57,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-24 19:51:57,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-03-24 19:51:57,121 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 161 [2021-03-24 19:51:57,122 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 71 transitions, 510 flow. Second operand has 10 states, 10 states have (on average 118.3) internal successors, (1183), 10 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:57,122 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 19:51:57,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 161 [2021-03-24 19:51:57,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 19:51:57,365 INFO L129 PetriNetUnfolder]: 147/521 cut-off events. [2021-03-24 19:51:57,365 INFO L130 PetriNetUnfolder]: For 2454/2921 co-relation queries the response was YES. [2021-03-24 19:51:57,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2352 conditions, 521 events. 147/521 cut-off events. For 2454/2921 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 4070 event pairs, 0 based on Foata normal form. 107/598 useless extension candidates. Maximal degree in co-relation 2297. Up to 135 conditions per place. [2021-03-24 19:51:57,370 INFO L132 encePairwiseOnDemand]: 152/161 looper letters, 21 selfloop transitions, 17 changer transitions 7/82 dead transitions. [2021-03-24 19:51:57,370 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 82 transitions, 699 flow [2021-03-24 19:51:57,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 19:51:57,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 19:51:57,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1077 transitions. [2021-03-24 19:51:57,374 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7432712215320911 [2021-03-24 19:51:57,374 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1077 transitions. [2021-03-24 19:51:57,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1077 transitions. [2021-03-24 19:51:57,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 19:51:57,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1077 transitions. [2021-03-24 19:51:57,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 119.66666666666667) internal successors, (1077), 9 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:57,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:57,380 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 161.0) internal successors, (1610), 10 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:57,380 INFO L185 Difference]: Start difference. First operand has 89 places, 71 transitions, 510 flow. Second operand 9 states and 1077 transitions. [2021-03-24 19:51:57,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 82 transitions, 699 flow [2021-03-24 19:51:57,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 82 transitions, 617 flow, removed 24 selfloop flow, removed 9 redundant places. [2021-03-24 19:51:57,392 INFO L241 Difference]: Finished difference. Result has 90 places, 72 transitions, 502 flow [2021-03-24 19:51:57,392 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=502, PETRI_PLACES=90, PETRI_TRANSITIONS=72} [2021-03-24 19:51:57,392 INFO L343 CegarLoopForPetriNet]: 48 programPoint places, 42 predicate places. [2021-03-24 19:51:57,392 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 72 transitions, 502 flow [2021-03-24 19:51:57,392 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 118.3) internal successors, (1183), 10 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 19:51:57,393 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 19:51:57,393 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 19:51:57,393 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-24 19:51:57,393 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 19:51:57,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 19:51:57,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1466000377, now seen corresponding path program 2 times [2021-03-24 19:51:57,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 19:51:57,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407572807] [2021-03-24 19:51:57,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 19:51:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 19:51:57,428 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 19:51:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 19:51:57,507 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 19:51:57,544 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-24 19:51:57,544 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-24 19:51:57,544 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-24 19:51:57,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 07:51:57 BasicIcfg [2021-03-24 19:51:57,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 19:51:57,628 INFO L168 Benchmark]: Toolchain (without parser) took 15199.31 ms. Allocated memory was 255.9 MB in the beginning and 503.3 MB in the end (delta: 247.5 MB). Free memory was 234.4 MB in the beginning and 454.4 MB in the end (delta: -220.0 MB). Peak memory consumption was 294.6 MB. Max. memory is 16.0 GB. [2021-03-24 19:51:57,628 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory is still 237.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 19:51:57,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 558.55 ms. Allocated memory was 255.9 MB in the beginning and 348.1 MB in the end (delta: 92.3 MB). Free memory was 234.4 MB in the beginning and 306.9 MB in the end (delta: -72.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-24 19:51:57,628 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.99 ms. Allocated memory is still 348.1 MB. Free memory was 306.9 MB in the beginning and 304.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 19:51:57,628 INFO L168 Benchmark]: Boogie Preprocessor took 42.38 ms. Allocated memory is still 348.1 MB. Free memory was 304.2 MB in the beginning and 302.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 19:51:57,629 INFO L168 Benchmark]: RCFGBuilder took 1831.47 ms. Allocated memory is still 348.1 MB. Free memory was 302.1 MB in the beginning and 207.5 MB in the end (delta: 94.6 MB). Peak memory consumption was 99.8 MB. Max. memory is 16.0 GB. [2021-03-24 19:51:57,629 INFO L168 Benchmark]: TraceAbstraction took 12697.46 ms. Allocated memory was 348.1 MB in the beginning and 503.3 MB in the end (delta: 155.2 MB). Free memory was 206.4 MB in the beginning and 454.4 MB in the end (delta: -248.0 MB). Peak memory consumption was 175.6 MB. Max. memory is 16.0 GB. [2021-03-24 19:51:57,630 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 255.9 MB. Free memory is still 237.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 558.55 ms. Allocated memory was 255.9 MB in the beginning and 348.1 MB in the end (delta: 92.3 MB). Free memory was 234.4 MB in the beginning and 306.9 MB in the end (delta: -72.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 63.99 ms. Allocated memory is still 348.1 MB. Free memory was 306.9 MB in the beginning and 304.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 42.38 ms. Allocated memory is still 348.1 MB. Free memory was 304.2 MB in the beginning and 302.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 1831.47 ms. Allocated memory is still 348.1 MB. Free memory was 302.1 MB in the beginning and 207.5 MB in the end (delta: 94.6 MB). Peak memory consumption was 99.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 12697.46 ms. Allocated memory was 348.1 MB in the beginning and 503.3 MB in the end (delta: 155.2 MB). Free memory was 206.4 MB in the beginning and 454.4 MB in the end (delta: -248.0 MB). Peak memory consumption was 175.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7619.7ms, 102 PlacesBefore, 48 PlacesAfterwards, 94 TransitionsBefore, 39 TransitionsAfterwards, 1694 CoEnabledTransitionPairs, 5 FixpointIterations, 26 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 3065 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1546, positive: 1462, positive conditional: 0, positive unconditional: 1462, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1105, positive: 1070, positive conditional: 0, positive unconditional: 1070, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1105, positive: 1070, positive conditional: 0, positive unconditional: 1070, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1105, positive: 1064, positive conditional: 0, positive unconditional: 1064, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 397, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 381, negative conditional: 0, negative unconditional: 381, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1546, positive: 392, positive conditional: 0, positive unconditional: 392, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 1105, unknown conditional: 0, unknown unconditional: 1105] , Statistics on independence cache: Total cache size (in pairs): 160, Positive cache size: 140, Positive conditional cache size: 0, Positive unconditional cache size: 140, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - 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; VAL [__unbuffered_cnt=0, __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; [L719] 0 int z = 0; [L720] 0 _Bool z$flush_delayed; [L721] 0 int z$mem_tmp; [L722] 0 _Bool z$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0] [L723] 0 _Bool z$r_buff0_thd1; [L724] 0 _Bool z$r_buff0_thd2; [L725] 0 _Bool z$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0] [L726] 0 _Bool z$r_buff1_thd0; [L727] 0 _Bool z$r_buff1_thd1; [L728] 0 _Bool z$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0] [L729] 0 _Bool z$r_buff1_thd3; [L730] 0 _Bool z$read_delayed; [L731] 0 int *z$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}] [L732] 0 int z$w_buff0; [L733] 0 _Bool z$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0] [L734] 0 int z$w_buff1; [L735] 0 _Bool z$w_buff1_used; [L736] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L737] 0 _Bool weak$$choice2; [L818] 0 pthread_t t2031; [L819] FCALL, FORK 0 pthread_create(&t2031, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L820] 0 pthread_t t2032; [L821] FCALL, FORK 0 pthread_create(&t2032, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L822] 0 pthread_t t2033; [L823] FCALL, FORK 0 pthread_create(&t2033, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L741] 1 z$w_buff1 = z$w_buff0 [L742] 1 z$w_buff0 = 2 [L743] 1 z$w_buff1_used = z$w_buff0_used [L744] 1 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L746] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L747] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L748] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L749] 1 z$r_buff1_thd3 = z$r_buff0_thd3 [L750] 1 z$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L753] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L770] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L773] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L790] 3 __unbuffered_p2_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L776] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L776] EXPR 2 z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z [L776] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L776] 2 z = z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L777] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L777] 2 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L778] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L778] 2 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L779] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L779] 2 z$r_buff0_thd2 = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L780] EXPR 2 z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 [L780] 2 z$r_buff1_thd2 = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 [L793] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L796] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L796] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L796] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L796] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L797] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L797] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L798] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L798] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L799] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L799] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L800] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L800] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L756] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L756] 1 z = z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L757] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L757] 1 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L758] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L758] 1 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L759] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L759] 1 z$r_buff0_thd1 = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L760] EXPR 1 z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 [L760] 1 z$r_buff1_thd1 = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 [L763] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L765] 1 return 0; [L783] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L785] 2 return 0; [L803] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L805] 3 return 0; [L825] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L3] COND FALSE 0 !(!cond) [L829] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L829] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L829] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L829] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L830] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L830] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L831] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L831] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L832] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L832] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L833] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L833] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L836] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L837] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L838] 0 z$flush_delayed = weak$$choice2 [L839] 0 z$mem_tmp = z [L840] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L840] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L841] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L841] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0) [L841] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L841] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L842] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L842] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1) [L842] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L842] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L843] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L843] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used) [L843] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L843] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L844] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L844] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L844] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L844] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L845] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L845] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0) [L845] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L845] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L846] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L846] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L846] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L846] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L847] 0 main$tmp_guard1 = !(x == 2 && z == 2 && __unbuffered_p2_EAX == 1) [L848] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L848] 0 z = z$flush_delayed ? z$mem_tmp : z [L849] 0 z$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=0, x=2, y=1, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 96 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 12489.8ms, OverallIterations: 15, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2629.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7712.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 102 SDtfs, 122 SDslu, 116 SDs, 0 SdLazy, 518 SolverSat, 184 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 669.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 802.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=589occurred in iteration=10, InterpolantAutomatonStates: 106, 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: 53.5ms SsaConstructionTime, 441.7ms SatisfiabilityAnalysisTime, 1315.4ms InterpolantComputationTime, 353 NumberOfCodeBlocks, 353 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 2318 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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...