/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix022_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:09:46,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:09:46,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:09:46,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 00:09:46,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 00:09:46,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 00:09:46,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 00:09:47,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 00:09:47,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 00:09:47,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 00:09:47,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 00:09:47,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 00:09:47,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:09:47,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:09:47,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:09:47,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:09:47,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:09:47,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:09:47,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:09:47,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:09:47,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:09:47,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:09:47,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:09:47,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:09:47,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:09:47,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 00:09:47,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 00:09:47,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 00:09:47,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 00:09:47,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 00:09:47,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 00:09:47,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 00:09:47,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 00:09:47,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:09:47,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:09:47,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:09:47,055 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-03-26 00:09:47,102 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:09:47,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:09:47,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:09:47,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:09:47,105 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:09:47,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:09:47,106 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:09:47,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:09:47,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:09:47,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:09:47,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:09:47,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:09:47,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:09:47,107 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:09:47,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:09:47,108 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:09:47,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:09:47,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:09:47,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:09:47,108 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:09:47,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:09:47,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:09:47,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:09:47,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:09:47,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:09:47,109 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:09:47,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:09:47,109 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:09:47,110 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:09:47,110 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:09:47,110 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:09:47,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:09:47,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:09:47,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:09:47,416 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:09:47,417 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:09:47,418 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix022_rmo.opt.i [2021-03-26 00:09:47,480 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7185c8b33/8e11abebc3024e1ea2b4afa5d6256796/FLAG5350a9713 [2021-03-26 00:09:48,025 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:09:48,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix022_rmo.opt.i [2021-03-26 00:09:48,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7185c8b33/8e11abebc3024e1ea2b4afa5d6256796/FLAG5350a9713 [2021-03-26 00:09:48,498 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7185c8b33/8e11abebc3024e1ea2b4afa5d6256796 [2021-03-26 00:09:48,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:09:48,501 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:09:48,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:09:48,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:09:48,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:09:48,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:09:48" (1/1) ... [2021-03-26 00:09:48,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b3bb15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:09:48, skipping insertion in model container [2021-03-26 00:09:48,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:09:48" (1/1) ... [2021-03-26 00:09:48,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:09:48,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:09:48,706 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/mix022_rmo.opt.i[948,961] [2021-03-26 00:09:48,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:09:48,843 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:09:48,855 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/mix022_rmo.opt.i[948,961] [2021-03-26 00:09:48,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:09:49,009 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:09:49,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:09:49 WrapperNode [2021-03-26 00:09:49,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:09:49,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:09:49,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:09:49,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:09:49,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:09:49" (1/1) ... [2021-03-26 00:09:49,052 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:09:49" (1/1) ... [2021-03-26 00:09:49,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:09:49,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:09:49,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:09:49,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:09:49,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:09:49" (1/1) ... [2021-03-26 00:09:49,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:09:49" (1/1) ... [2021-03-26 00:09:49,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:09:49" (1/1) ... [2021-03-26 00:09:49,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:09:49" (1/1) ... [2021-03-26 00:09:49,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:09:49" (1/1) ... [2021-03-26 00:09:49,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:09:49" (1/1) ... [2021-03-26 00:09:49,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:09:49" (1/1) ... [2021-03-26 00:09:49,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:09:49,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:09:49,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:09:49,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:09:49,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:09:49" (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 [2021-03-26 00:09:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:09:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:09:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:09:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:09:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:09:49,221 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:09:49,222 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:09:49,222 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:09:49,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:09:49,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:09:49,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:09:49,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:09:49,224 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 00:09:50,838 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:09:50,838 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-26 00:09:50,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:09:50 BoogieIcfgContainer [2021-03-26 00:09:50,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:09:50,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:09:50,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:09:50,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:09:50,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:09:48" (1/3) ... [2021-03-26 00:09:50,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707db9e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:09:50, skipping insertion in model container [2021-03-26 00:09:50,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:09:49" (2/3) ... [2021-03-26 00:09:50,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707db9e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:09:50, skipping insertion in model container [2021-03-26 00:09:50,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:09:50" (3/3) ... [2021-03-26 00:09:50,846 INFO L111 eAbstractionObserver]: Analyzing ICFG mix022_rmo.opt.i [2021-03-26 00:09:50,854 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:09:50,858 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-26 00:09:50,859 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:09:50,894 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,894 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,894 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,894 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,895 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,895 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,895 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,895 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,895 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,895 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,895 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,895 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,896 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,896 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,896 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,896 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,896 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,896 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,896 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,897 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,897 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,897 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,897 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,897 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,897 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,898 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,898 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,898 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,898 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,898 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,898 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,899 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,899 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,899 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,899 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,900 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,900 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,904 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,904 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,904 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,904 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,905 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,906 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,906 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,906 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,906 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,906 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,906 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,906 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,906 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,907 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,907 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,907 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,907 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,907 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,907 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,907 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,908 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,909 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,909 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,909 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,909 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,909 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,909 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,909 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,909 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,909 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,910 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,910 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,910 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,916 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,917 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,917 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,917 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,917 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,917 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,917 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,917 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,918 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,918 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,918 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,918 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,921 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,922 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:09:50,928 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:09:50,945 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-26 00:09:50,969 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:09:50,969 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:09:50,969 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:09:50,969 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:09:50,969 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:09:50,969 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:09:50,969 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:09:50,969 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:09:50,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 82 transitions, 174 flow [2021-03-26 00:09:51,007 INFO L129 PetriNetUnfolder]: 2/80 cut-off events. [2021-03-26 00:09:51,007 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:09:51,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2021-03-26 00:09:51,010 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 82 transitions, 174 flow [2021-03-26 00:09:51,014 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 80 transitions, 166 flow [2021-03-26 00:09:51,015 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:09:51,025 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 80 transitions, 166 flow [2021-03-26 00:09:51,029 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 80 transitions, 166 flow [2021-03-26 00:09:51,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 80 transitions, 166 flow [2021-03-26 00:09:51,052 INFO L129 PetriNetUnfolder]: 2/80 cut-off events. [2021-03-26 00:09:51,052 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:09:51,052 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2021-03-26 00:09:51,056 INFO L142 LiptonReduction]: Number of co-enabled transitions 992 [2021-03-26 00:09:52,184 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-26 00:09:52,623 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2021-03-26 00:09:52,759 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-26 00:09:53,671 INFO L154 LiptonReduction]: Checked pairs total: 1658 [2021-03-26 00:09:53,672 INFO L156 LiptonReduction]: Total number of compositions: 56 [2021-03-26 00:09:53,674 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2660 [2021-03-26 00:09:53,683 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-03-26 00:09:53,683 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:09:53,684 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:09:53,684 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:09:53,684 INFO L428 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:09:53,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:09:53,689 INFO L82 PathProgramCache]: Analyzing trace with hash 613678692, now seen corresponding path program 1 times [2021-03-26 00:09:53,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:09:53,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205711567] [2021-03-26 00:09:53,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:09:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:09:53,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:09:53,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:09:53,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:09:53,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:09:53,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:09:53,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205711567] [2021-03-26 00:09:53,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:09:53,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:09:53,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344209090] [2021-03-26 00:09:53,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:09:53,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:09:53,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:09:53,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:09:53,931 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 138 [2021-03-26 00:09:53,934 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:53,934 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:09:53,934 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 138 [2021-03-26 00:09:53,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:09:54,003 INFO L129 PetriNetUnfolder]: 16/83 cut-off events. [2021-03-26 00:09:54,003 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:09:54,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 83 events. 16/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 286 event pairs, 11 based on Foata normal form. 8/84 useless extension candidates. Maximal degree in co-relation 109. Up to 27 conditions per place. [2021-03-26 00:09:54,006 INFO L132 encePairwiseOnDemand]: 134/138 looper letters, 7 selfloop transitions, 2 changer transitions 0/31 dead transitions. [2021-03-26 00:09:54,006 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 31 transitions, 86 flow [2021-03-26 00:09:54,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:09:54,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:09:54,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 363 transitions. [2021-03-26 00:09:54,024 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8768115942028986 [2021-03-26 00:09:54,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 363 transitions. [2021-03-26 00:09:54,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 363 transitions. [2021-03-26 00:09:54,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:09:54,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 363 transitions. [2021-03-26 00:09:54,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:54,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:54,042 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:54,044 INFO L185 Difference]: Start difference. First operand has 37 places, 31 transitions, 68 flow. Second operand 3 states and 363 transitions. [2021-03-26 00:09:54,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 31 transitions, 86 flow [2021-03-26 00:09:54,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 31 transitions, 84 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:09:54,048 INFO L241 Difference]: Finished difference. Result has 35 places, 28 transitions, 64 flow [2021-03-26 00:09:54,049 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2021-03-26 00:09:54,050 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2021-03-26 00:09:54,050 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:09:54,050 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 28 transitions, 64 flow [2021-03-26 00:09:54,051 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 28 transitions, 64 flow [2021-03-26 00:09:54,051 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 28 transitions, 64 flow [2021-03-26 00:09:54,056 INFO L129 PetriNetUnfolder]: 0/28 cut-off events. [2021-03-26 00:09:54,056 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:09:54,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 28 events. 0/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 00:09:54,057 INFO L142 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-26 00:09:54,912 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-03-26 00:09:55,062 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-03-26 00:09:55,992 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2021-03-26 00:09:56,125 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-03-26 00:09:56,371 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2021-03-26 00:09:56,509 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-03-26 00:09:56,513 INFO L154 LiptonReduction]: Checked pairs total: 779 [2021-03-26 00:09:56,513 INFO L156 LiptonReduction]: Total number of compositions: 11 [2021-03-26 00:09:56,513 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2463 [2021-03-26 00:09:56,515 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 42 flow [2021-03-26 00:09:56,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:56,515 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:09:56,515 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:09:56,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:09:56,516 INFO L428 AbstractCegarLoop]: === Iteration 2 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:09:56,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:09:56,516 INFO L82 PathProgramCache]: Analyzing trace with hash -311559113, now seen corresponding path program 1 times [2021-03-26 00:09:56,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:09:56,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272160851] [2021-03-26 00:09:56,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:09:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:09:56,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:09:56,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:09:56,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:09:56,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:09:56,631 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-26 00:09:56,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:09:56,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:09:56,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272160851] [2021-03-26 00:09:56,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:09:56,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:09:56,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433441286] [2021-03-26 00:09:56,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:09:56,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:09:56,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:09:56,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:09:56,640 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 149 [2021-03-26 00:09:56,640 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:56,640 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:09:56,641 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 149 [2021-03-26 00:09:56,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:09:56,664 INFO L129 PetriNetUnfolder]: 1/19 cut-off events. [2021-03-26 00:09:56,665 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:09:56,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 19 events. 1/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 25. Up to 3 conditions per place. [2021-03-26 00:09:56,666 INFO L132 encePairwiseOnDemand]: 145/149 looper letters, 1 selfloop transitions, 2 changer transitions 3/19 dead transitions. [2021-03-26 00:09:56,666 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 19 transitions, 58 flow [2021-03-26 00:09:56,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:09:56,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:09:56,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 622 transitions. [2021-03-26 00:09:56,670 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8348993288590604 [2021-03-26 00:09:56,670 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 622 transitions. [2021-03-26 00:09:56,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 622 transitions. [2021-03-26 00:09:56,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:09:56,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 622 transitions. [2021-03-26 00:09:56,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 124.4) internal successors, (622), 5 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:56,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:56,677 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:56,677 INFO L185 Difference]: Start difference. First operand has 24 places, 17 transitions, 42 flow. Second operand 5 states and 622 transitions. [2021-03-26 00:09:56,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 19 transitions, 58 flow [2021-03-26 00:09:56,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 19 transitions, 54 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:09:56,678 INFO L241 Difference]: Finished difference. Result has 27 places, 16 transitions, 44 flow [2021-03-26 00:09:56,678 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=16} [2021-03-26 00:09:56,679 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -10 predicate places. [2021-03-26 00:09:56,679 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:09:56,679 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 16 transitions, 44 flow [2021-03-26 00:09:56,679 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 16 transitions, 44 flow [2021-03-26 00:09:56,679 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 16 transitions, 44 flow [2021-03-26 00:09:56,682 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-26 00:09:56,682 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:09:56,682 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 16 events. 0/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:09:56,683 INFO L142 LiptonReduction]: Number of co-enabled transitions 106 [2021-03-26 00:09:56,837 INFO L154 LiptonReduction]: Checked pairs total: 134 [2021-03-26 00:09:56,837 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:09:56,837 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 158 [2021-03-26 00:09:56,838 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 16 transitions, 44 flow [2021-03-26 00:09:56,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:56,839 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:09:56,839 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:09:56,839 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:09:56,839 INFO L428 AbstractCegarLoop]: === Iteration 3 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:09:56,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:09:56,839 INFO L82 PathProgramCache]: Analyzing trace with hash -240762504, now seen corresponding path program 1 times [2021-03-26 00:09:56,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:09:56,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321878580] [2021-03-26 00:09:56,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:09:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:09:56,907 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:09:56,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:09:56,913 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-03-26 00:09:56,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:09:56,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:09:56,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:09:56,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:09:56,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321878580] [2021-03-26 00:09:56,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:09:56,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:09:56,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74422274] [2021-03-26 00:09:56,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:09:56,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:09:56,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:09:56,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:09:56,932 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 149 [2021-03-26 00:09:56,933 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 16 transitions, 44 flow. Second operand has 4 states, 4 states have (on average 122.75) internal successors, (491), 4 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:56,933 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:09:56,933 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 149 [2021-03-26 00:09:56,933 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:09:56,967 INFO L129 PetriNetUnfolder]: 6/33 cut-off events. [2021-03-26 00:09:56,968 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:09:56,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 33 events. 6/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 69 event pairs, 2 based on Foata normal form. 4/37 useless extension candidates. Maximal degree in co-relation 57. Up to 15 conditions per place. [2021-03-26 00:09:56,968 INFO L132 encePairwiseOnDemand]: 144/149 looper letters, 4 selfloop transitions, 3 changer transitions 5/23 dead transitions. [2021-03-26 00:09:56,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 23 transitions, 82 flow [2021-03-26 00:09:56,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:09:56,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:09:56,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 624 transitions. [2021-03-26 00:09:56,971 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8375838926174497 [2021-03-26 00:09:56,972 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 624 transitions. [2021-03-26 00:09:56,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 624 transitions. [2021-03-26 00:09:56,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:09:56,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 624 transitions. [2021-03-26 00:09:56,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 124.8) internal successors, (624), 5 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:56,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:56,976 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:56,976 INFO L185 Difference]: Start difference. First operand has 24 places, 16 transitions, 44 flow. Second operand 5 states and 624 transitions. [2021-03-26 00:09:56,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 23 transitions, 82 flow [2021-03-26 00:09:56,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 23 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:09:56,977 INFO L241 Difference]: Finished difference. Result has 29 places, 18 transitions, 67 flow [2021-03-26 00:09:56,977 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=67, PETRI_PLACES=29, PETRI_TRANSITIONS=18} [2021-03-26 00:09:56,977 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -8 predicate places. [2021-03-26 00:09:56,977 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:09:56,978 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 18 transitions, 67 flow [2021-03-26 00:09:56,978 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 18 transitions, 67 flow [2021-03-26 00:09:56,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 18 transitions, 67 flow [2021-03-26 00:09:56,990 INFO L129 PetriNetUnfolder]: 5/28 cut-off events. [2021-03-26 00:09:56,990 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-03-26 00:09:56,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 28 events. 5/28 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 48 event pairs, 2 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 57. Up to 12 conditions per place. [2021-03-26 00:09:56,991 INFO L142 LiptonReduction]: Number of co-enabled transitions 96 [2021-03-26 00:09:56,993 INFO L154 LiptonReduction]: Checked pairs total: 97 [2021-03-26 00:09:56,993 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:09:56,993 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-26 00:09:56,995 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 18 transitions, 67 flow [2021-03-26 00:09:56,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 122.75) internal successors, (491), 4 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:56,996 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:09:56,996 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:09:56,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:09:56,996 INFO L428 AbstractCegarLoop]: === Iteration 4 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:09:56,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:09:56,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1541259048, now seen corresponding path program 1 times [2021-03-26 00:09:56,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:09:56,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718863131] [2021-03-26 00:09:56,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:09:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:09:57,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:09:57,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:09:57,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:09:57,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:09:57,177 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-03-26 00:09:57,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:09:57,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:09:57,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:09:57,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:09:57,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718863131] [2021-03-26 00:09:57,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:09:57,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:09:57,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439897736] [2021-03-26 00:09:57,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:09:57,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:09:57,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:09:57,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:09:57,191 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 149 [2021-03-26 00:09:57,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 67 flow. Second operand has 5 states, 5 states have (on average 122.8) internal successors, (614), 5 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:57,191 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:09:57,191 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 149 [2021-03-26 00:09:57,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:09:57,225 INFO L129 PetriNetUnfolder]: 2/22 cut-off events. [2021-03-26 00:09:57,226 INFO L130 PetriNetUnfolder]: For 13/15 co-relation queries the response was YES. [2021-03-26 00:09:57,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 22 events. 2/22 cut-off events. For 13/15 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 5/27 useless extension candidates. Maximal degree in co-relation 51. Up to 10 conditions per place. [2021-03-26 00:09:57,226 INFO L132 encePairwiseOnDemand]: 144/149 looper letters, 2 selfloop transitions, 5 changer transitions 3/21 dead transitions. [2021-03-26 00:09:57,226 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 21 transitions, 103 flow [2021-03-26 00:09:57,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:09:57,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:09:57,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 744 transitions. [2021-03-26 00:09:57,229 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8322147651006712 [2021-03-26 00:09:57,229 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 744 transitions. [2021-03-26 00:09:57,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 744 transitions. [2021-03-26 00:09:57,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:09:57,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 744 transitions. [2021-03-26 00:09:57,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:57,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:57,233 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:57,233 INFO L185 Difference]: Start difference. First operand has 27 places, 18 transitions, 67 flow. Second operand 6 states and 744 transitions. [2021-03-26 00:09:57,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 21 transitions, 103 flow [2021-03-26 00:09:57,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 21 transitions, 86 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-26 00:09:57,235 INFO L241 Difference]: Finished difference. Result has 32 places, 18 transitions, 74 flow [2021-03-26 00:09:57,235 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=74, PETRI_PLACES=32, PETRI_TRANSITIONS=18} [2021-03-26 00:09:57,235 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -5 predicate places. [2021-03-26 00:09:57,235 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:09:57,235 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 18 transitions, 74 flow [2021-03-26 00:09:57,236 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 18 transitions, 74 flow [2021-03-26 00:09:57,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 18 transitions, 74 flow [2021-03-26 00:09:57,242 INFO L129 PetriNetUnfolder]: 1/18 cut-off events. [2021-03-26 00:09:57,242 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-03-26 00:09:57,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 18 events. 1/18 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 34. Up to 6 conditions per place. [2021-03-26 00:09:57,242 INFO L142 LiptonReduction]: Number of co-enabled transitions 54 [2021-03-26 00:09:57,620 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-03-26 00:09:57,762 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-03-26 00:09:58,104 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-03-26 00:09:58,298 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-03-26 00:09:58,300 INFO L154 LiptonReduction]: Checked pairs total: 201 [2021-03-26 00:09:58,301 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 00:09:58,301 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1066 [2021-03-26 00:09:58,301 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 16 transitions, 70 flow [2021-03-26 00:09:58,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 122.8) internal successors, (614), 5 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:58,302 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:09:58,302 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:09:58,302 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:09:58,302 INFO L428 AbstractCegarLoop]: === Iteration 5 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:09:58,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:09:58,303 INFO L82 PathProgramCache]: Analyzing trace with hash -458026248, now seen corresponding path program 1 times [2021-03-26 00:09:58,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:09:58,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658459821] [2021-03-26 00:09:58,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:09:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:09:58,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:09:58,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:09:58,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:09:58,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:09:58,378 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:09:58,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:09:58,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:09:58,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658459821] [2021-03-26 00:09:58,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:09:58,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:09:58,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143631923] [2021-03-26 00:09:58,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:09:58,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:09:58,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:09:58,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:09:58,390 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 151 [2021-03-26 00:09:58,391 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 16 transitions, 70 flow. Second operand has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:58,391 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:09:58,391 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 151 [2021-03-26 00:09:58,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:09:58,421 INFO L129 PetriNetUnfolder]: 4/34 cut-off events. [2021-03-26 00:09:58,421 INFO L130 PetriNetUnfolder]: For 79/82 co-relation queries the response was YES. [2021-03-26 00:09:58,422 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 34 events. 4/34 cut-off events. For 79/82 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 0 based on Foata normal form. 4/38 useless extension candidates. Maximal degree in co-relation 76. Up to 12 conditions per place. [2021-03-26 00:09:58,422 INFO L132 encePairwiseOnDemand]: 147/151 looper letters, 3 selfloop transitions, 3 changer transitions 4/20 dead transitions. [2021-03-26 00:09:58,422 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 20 transitions, 98 flow [2021-03-26 00:09:58,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:09:58,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:09:58,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 479 transitions. [2021-03-26 00:09:58,424 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.793046357615894 [2021-03-26 00:09:58,424 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 479 transitions. [2021-03-26 00:09:58,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 479 transitions. [2021-03-26 00:09:58,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:09:58,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 479 transitions. [2021-03-26 00:09:58,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 119.75) internal successors, (479), 4 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:58,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 151.0) internal successors, (755), 5 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:58,427 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 151.0) internal successors, (755), 5 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:09:58,427 INFO L185 Difference]: Start difference. First operand has 28 places, 16 transitions, 70 flow. Second operand 4 states and 479 transitions. [2021-03-26 00:09:58,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 20 transitions, 98 flow [2021-03-26 00:09:58,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 82 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-26 00:09:58,430 INFO L241 Difference]: Finished difference. Result has 27 places, 16 transitions, 64 flow [2021-03-26 00:09:58,430 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=64, PETRI_PLACES=27, PETRI_TRANSITIONS=16} [2021-03-26 00:09:58,430 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -10 predicate places. [2021-03-26 00:09:58,430 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:09:58,430 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 16 transitions, 64 flow [2021-03-26 00:09:58,430 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 16 transitions, 64 flow [2021-03-26 00:09:58,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 16 transitions, 64 flow [2021-03-26 00:09:58,434 INFO L129 PetriNetUnfolder]: 1/16 cut-off events. [2021-03-26 00:09:58,434 INFO L130 PetriNetUnfolder]: For 8/9 co-relation queries the response was YES. [2021-03-26 00:09:58,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 16 events. 1/16 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 8 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 28. Up to 4 conditions per place. [2021-03-26 00:09:58,435 INFO L142 LiptonReduction]: Number of co-enabled transitions 34 [2021-03-26 00:09:59,109 WARN L205 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 172 [2021-03-26 00:09:59,619 WARN L205 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 169 [2021-03-26 00:10:00,889 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 296 DAG size of output: 251 [2021-03-26 00:10:01,437 WARN L205 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2021-03-26 00:10:01,885 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2021-03-26 00:10:02,158 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2021-03-26 00:10:02,773 WARN L205 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-03-26 00:10:03,376 WARN L205 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-03-26 00:10:03,471 INFO L154 LiptonReduction]: Checked pairs total: 63 [2021-03-26 00:10:03,471 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 00:10:03,471 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5041 [2021-03-26 00:10:03,472 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 13 transitions, 58 flow [2021-03-26 00:10:03,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:10:03,473 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:10:03,473 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:10:03,473 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:10:03,473 INFO L428 AbstractCegarLoop]: === Iteration 6 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:10:03,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:10:03,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1947120721, now seen corresponding path program 1 times [2021-03-26 00:10:03,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:10:03,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084684095] [2021-03-26 00:10:03,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:10:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 00:10:03,522 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 00:10:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 00:10:03,591 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 00:10:03,634 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 00:10:03,635 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 00:10:03,635 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:10:03,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:10:03 BasicIcfg [2021-03-26 00:10:03,688 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:10:03,689 INFO L168 Benchmark]: Toolchain (without parser) took 15186.95 ms. Allocated memory was 255.9 MB in the beginning and 515.9 MB in the end (delta: 260.0 MB). Free memory was 234.3 MB in the beginning and 439.0 MB in the end (delta: -204.6 MB). Peak memory consumption was 55.6 MB. Max. memory is 16.0 GB. [2021-03-26 00:10:03,689 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:10:03,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 509.81 ms. Allocated memory was 255.9 MB in the beginning and 337.6 MB in the end (delta: 81.8 MB). Free memory was 234.3 MB in the beginning and 297.1 MB in the end (delta: -62.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-26 00:10:03,690 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.59 ms. Allocated memory is still 337.6 MB. Free memory was 297.1 MB in the beginning and 295.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:10:03,690 INFO L168 Benchmark]: Boogie Preprocessor took 51.76 ms. Allocated memory is still 337.6 MB. Free memory was 295.1 MB in the beginning and 293.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:10:03,690 INFO L168 Benchmark]: RCFGBuilder took 1703.46 ms. Allocated memory is still 337.6 MB. Free memory was 293.0 MB in the beginning and 305.8 MB in the end (delta: -12.8 MB). Peak memory consumption was 65.5 MB. Max. memory is 16.0 GB. [2021-03-26 00:10:03,691 INFO L168 Benchmark]: TraceAbstraction took 12846.61 ms. Allocated memory was 337.6 MB in the beginning and 515.9 MB in the end (delta: 178.3 MB). Free memory was 305.8 MB in the beginning and 439.0 MB in the end (delta: -133.1 MB). Peak memory consumption was 46.2 MB. Max. memory is 16.0 GB. [2021-03-26 00:10:03,693 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 509.81 ms. Allocated memory was 255.9 MB in the beginning and 337.6 MB in the end (delta: 81.8 MB). Free memory was 234.3 MB in the beginning and 297.1 MB in the end (delta: -62.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 70.59 ms. Allocated memory is still 337.6 MB. Free memory was 297.1 MB in the beginning and 295.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 51.76 ms. Allocated memory is still 337.6 MB. Free memory was 295.1 MB in the beginning and 293.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1703.46 ms. Allocated memory is still 337.6 MB. Free memory was 293.0 MB in the beginning and 305.8 MB in the end (delta: -12.8 MB). Peak memory consumption was 65.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 12846.61 ms. Allocated memory was 337.6 MB in the beginning and 515.9 MB in the end (delta: 178.3 MB). Free memory was 305.8 MB in the beginning and 439.0 MB in the end (delta: -133.1 MB). Peak memory consumption was 46.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2642.7ms, 85 PlacesBefore, 37 PlacesAfterwards, 80 TransitionsBefore, 31 TransitionsAfterwards, 992 CoEnabledTransitionPairs, 4 FixpointIterations, 26 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 1658 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 882, positive: 824, positive conditional: 824, positive unconditional: 0, negative: 58, negative conditional: 58, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 659, positive: 635, positive conditional: 0, positive unconditional: 635, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 659, positive: 635, positive conditional: 0, positive unconditional: 635, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 659, positive: 632, positive conditional: 0, positive unconditional: 632, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 27, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 382, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 371, negative conditional: 0, negative unconditional: 371, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 882, positive: 189, positive conditional: 189, positive unconditional: 0, negative: 34, negative conditional: 34, negative unconditional: 0, unknown: 659, unknown conditional: 659, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 34, Positive conditional cache size: 34, Positive unconditional cache size: 0, Negative cache size: 16, Negative conditional cache size: 16, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2462.6ms, 35 PlacesBefore, 24 PlacesAfterwards, 28 TransitionsBefore, 17 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 779 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 233, positive: 160, positive conditional: 160, positive unconditional: 0, negative: 73, negative conditional: 73, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 92, positive: 70, positive conditional: 14, positive unconditional: 56, negative: 22, negative conditional: 4, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 92, positive: 70, positive conditional: 14, positive unconditional: 56, negative: 22, negative conditional: 4, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 92, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 22, negative conditional: 4, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 271, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 260, negative conditional: 61, negative unconditional: 199, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 233, positive: 90, positive conditional: 90, positive unconditional: 0, negative: 51, negative conditional: 51, negative unconditional: 0, unknown: 92, unknown conditional: 92, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 65, Positive cache size: 39, Positive conditional cache size: 39, Positive unconditional cache size: 0, Negative cache size: 26, Negative conditional cache size: 26, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 157.7ms, 27 PlacesBefore, 24 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 106 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 134 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 52, positive: 36, positive conditional: 36, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 27, positive: 20, positive conditional: 6, positive unconditional: 14, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 27, positive: 20, positive conditional: 6, positive unconditional: 14, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 27, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 151, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 149, negative conditional: 2, negative unconditional: 146, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 52, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 27, unknown conditional: 27, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 92, Positive cache size: 59, Positive conditional cache size: 59, Positive unconditional cache size: 0, Negative cache size: 33, Negative conditional cache size: 33, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.2ms, 29 PlacesBefore, 27 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 96 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 97 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 33, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 99, Positive cache size: 66, Positive conditional cache size: 66, Positive unconditional cache size: 0, Negative cache size: 33, Negative conditional cache size: 33, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1064.9ms, 32 PlacesBefore, 28 PlacesAfterwards, 18 TransitionsBefore, 16 TransitionsAfterwards, 54 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 201 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 63, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 39, negative conditional: 39, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 97, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 97, negative conditional: 0, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 63, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 37, negative conditional: 37, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 31, Positive conditional cache size: 31, Positive unconditional cache size: 0, Negative cache size: 21, Negative conditional cache size: 21, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5040.8ms, 27 PlacesBefore, 24 PlacesAfterwards, 16 TransitionsBefore, 13 TransitionsAfterwards, 34 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 63 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 9, positive conditional: 7, positive unconditional: 2, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 9, positive conditional: 7, positive unconditional: 2, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 123, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 123, negative conditional: 92, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 29, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 9, Positive conditional cache size: 9, Positive unconditional cache size: 0, Negative cache size: 8, Negative conditional cache size: 8, Negative unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L718] 0 int y = 0; [L719] 0 _Bool y$flush_delayed; [L720] 0 int y$mem_tmp; [L721] 0 _Bool y$r_buff0_thd0; [L722] 0 _Bool y$r_buff0_thd1; [L723] 0 _Bool y$r_buff0_thd2; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$read_delayed; [L728] 0 int *y$read_delayed_var; [L729] 0 int y$w_buff0; [L730] 0 _Bool y$w_buff0_used; [L731] 0 int y$w_buff1; [L732] 0 _Bool y$w_buff1_used; [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L810] 0 pthread_t t595; [L811] FCALL, FORK 0 pthread_create(&t595, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L812] 0 pthread_t t596; [L813] FCALL, FORK 0 pthread_create(&t596, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L738] 1 y$w_buff1 = y$w_buff0 [L739] 1 y$w_buff0 = 1 [L740] 1 y$w_buff1_used = y$w_buff0_used [L741] 1 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L743] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L744] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L745] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L746] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L749] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L766] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L769] 2 __unbuffered_p1_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L772] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L773] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L774] 2 y$flush_delayed = weak$$choice2 [L775] 2 y$mem_tmp = y [L776] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L776] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L777] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L777] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0) [L777] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L777] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L778] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L778] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1) [L778] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L778] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L779] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L779] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used) [L779] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L779] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L780] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L780] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L780] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L780] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L781] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L781] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2) [L781] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L781] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L782] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L782] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L782] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L782] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L783] 2 __unbuffered_p1_EBX = y [L784] EXPR 2 y$flush_delayed ? y$mem_tmp : y [L784] 2 y = y$flush_delayed ? y$mem_tmp : y [L785] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L788] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L788] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L788] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L788] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L789] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L789] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L790] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L790] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L791] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L791] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L792] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L792] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L752] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L752] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L753] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L753] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L754] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L754] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L755] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L755] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L756] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L756] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L759] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L761] 1 return 0; [L795] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L797] 2 return 0; [L815] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L819] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L819] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L819] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L819] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L820] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L820] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L821] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L821] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L822] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L822] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L823] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L823] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L826] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 2 && __unbuffered_p1_EBX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 81 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 12670.4ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 299.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2711.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 21 SDtfs, 8 SDslu, 9 SDs, 0 SdLazy, 61 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 69.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 55.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=4, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 17.8ms SsaConstructionTime, 278.6ms SatisfiabilityAnalysisTime, 356.5ms InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 195 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...