/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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 12:27:22,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 12:27:22,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 12:27:22,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 12:27:22,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 12:27:22,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 12:27:22,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 12:27:22,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 12:27:22,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 12:27:22,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 12:27:22,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 12:27:22,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 12:27:22,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 12:27:22,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 12:27:22,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 12:27:22,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 12:27:22,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 12:27:22,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 12:27:22,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 12:27:22,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 12:27:22,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 12:27:22,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 12:27:22,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 12:27:22,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 12:27:22,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-24 12:27:22,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-24 12:27:22,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-24 12:27:22,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-24 12:27:22,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-24 12:27:22,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-24 12:27:22,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 12:27:22,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 12:27:22,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 12:27:22,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 12:27:22,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 12:27:22,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 12:27:22,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 12:27:22,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 12:27:22,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 12:27:22,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 12:27:22,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 12:27:22,914 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-VariableLbe.epf [2021-03-24 12:27:22,952 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 12:27:22,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 12:27:22,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 12:27:22,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 12:27:22,956 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 12:27:22,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 12:27:22,956 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 12:27:22,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 12:27:22,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 12:27:22,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 12:27:22,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 12:27:22,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 12:27:22,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 12:27:22,958 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 12:27:22,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 12:27:22,958 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 12:27:22,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 12:27:22,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 12:27:22,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 12:27:22,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 12:27:22,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 12:27:22,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 12:27:22,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 12:27:22,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 12:27:22,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 12:27:22,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 12:27:22,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 12:27:22,961 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 12:27:22,961 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 12:27:22,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 12:27:23,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 12:27:23,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 12:27:23,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 12:27:23,297 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 12:27:23,298 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 12:27:23,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2021-03-24 12:27:23,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/393464e88/709ce475ccc64f10988dad7db9e671ff/FLAG5e1565708 [2021-03-24 12:27:23,905 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 12:27:23,906 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2021-03-24 12:27:23,919 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/393464e88/709ce475ccc64f10988dad7db9e671ff/FLAG5e1565708 [2021-03-24 12:27:24,378 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/393464e88/709ce475ccc64f10988dad7db9e671ff [2021-03-24 12:27:24,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 12:27:24,381 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 12:27:24,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 12:27:24,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 12:27:24,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 12:27:24,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 12:27:24" (1/1) ... [2021-03-24 12:27:24,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f0008ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:24, skipping insertion in model container [2021-03-24 12:27:24,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 12:27:24" (1/1) ... [2021-03-24 12:27:24,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 12:27:24,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 12:27:24,708 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[29913,29926] [2021-03-24 12:27:24,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 12:27:24,739 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 12:27:24,769 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[29913,29926] [2021-03-24 12:27:24,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 12:27:24,846 INFO L208 MainTranslator]: Completed translation [2021-03-24 12:27:24,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:24 WrapperNode [2021-03-24 12:27:24,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 12:27:24,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 12:27:24,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 12:27:24,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 12:27:24,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:24" (1/1) ... [2021-03-24 12:27:24,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:24" (1/1) ... [2021-03-24 12:27:24,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 12:27:24,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 12:27:24,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 12:27:24,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 12:27:24,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:24" (1/1) ... [2021-03-24 12:27:24,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:24" (1/1) ... [2021-03-24 12:27:24,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:24" (1/1) ... [2021-03-24 12:27:24,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:24" (1/1) ... [2021-03-24 12:27:24,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:24" (1/1) ... [2021-03-24 12:27:24,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:24" (1/1) ... [2021-03-24 12:27:24,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:24" (1/1) ... [2021-03-24 12:27:24,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 12:27:24,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 12:27:24,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 12:27:24,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 12:27:24,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 12:27:24,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-24 12:27:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 12:27:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-24 12:27:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 12:27:24,988 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-03-24 12:27:24,989 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-03-24 12:27:24,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 12:27:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 12:27:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 12:27:24,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 12:27:24,991 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 12:27:25,484 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 12:27:25,485 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-03-24 12:27:25,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 12:27:25 BoogieIcfgContainer [2021-03-24 12:27:25,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 12:27:25,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 12:27:25,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 12:27:25,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 12:27:25,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 12:27:24" (1/3) ... [2021-03-24 12:27:25,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25bd497f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 12:27:25, skipping insertion in model container [2021-03-24 12:27:25,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 12:27:24" (2/3) ... [2021-03-24 12:27:25,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25bd497f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 12:27:25, skipping insertion in model container [2021-03-24 12:27:25,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 12:27:25" (3/3) ... [2021-03-24 12:27:25,494 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2021-03-24 12:27:25,498 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 12:27:25,503 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 12:27:25,503 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 12:27:25,530 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,531 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,531 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,531 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,531 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,531 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,531 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,531 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,532 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,535 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,535 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,535 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,535 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,535 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,535 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,535 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,535 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,536 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,538 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,538 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,538 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,539 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,539 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,539 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,539 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,539 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,539 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,539 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,540 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,540 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,540 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,540 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,540 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,540 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,540 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,540 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,541 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,541 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,541 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,541 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,541 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,541 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,541 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,542 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,542 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,542 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,542 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,542 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,542 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,542 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,542 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,543 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,543 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,543 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,544 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,544 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,544 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,544 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,544 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,544 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,544 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,544 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,545 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,545 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,545 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,545 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,547 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,547 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,547 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,547 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,547 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,556 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,559 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,560 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,560 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,560 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,560 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,560 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,560 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 12:27:25,568 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-24 12:27:25,581 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-24 12:27:25,596 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 12:27:25,597 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 12:27:25,597 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 12:27:25,597 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 12:27:25,597 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 12:27:25,597 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 12:27:25,597 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 12:27:25,597 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 12:27:25,606 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 99 transitions, 206 flow [2021-03-24 12:27:25,638 INFO L129 PetriNetUnfolder]: 9/98 cut-off events. [2021-03-24 12:27:25,638 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-24 12:27:25,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 98 events. 9/98 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 143 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2021-03-24 12:27:25,641 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 99 transitions, 206 flow [2021-03-24 12:27:25,649 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 89 transitions, 181 flow [2021-03-24 12:27:25,650 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 12:27:25,658 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 89 transitions, 181 flow [2021-03-24 12:27:25,660 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 89 transitions, 181 flow [2021-03-24 12:27:25,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 89 transitions, 181 flow [2021-03-24 12:27:25,679 INFO L129 PetriNetUnfolder]: 9/89 cut-off events. [2021-03-24 12:27:25,679 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 12:27:25,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 89 events. 9/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 125 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2021-03-24 12:27:25,682 INFO L142 LiptonReduction]: Number of co-enabled transitions 1386 [2021-03-24 12:27:27,142 INFO L154 LiptonReduction]: Checked pairs total: 1020 [2021-03-24 12:27:27,143 INFO L156 LiptonReduction]: Total number of compositions: 43 [2021-03-24 12:27:27,145 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1496 [2021-03-24 12:27:27,161 INFO L129 PetriNetUnfolder]: 3/39 cut-off events. [2021-03-24 12:27:27,162 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 12:27:27,162 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 12:27:27,163 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 12:27:27,163 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 12:27:27,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 12:27:27,170 INFO L82 PathProgramCache]: Analyzing trace with hash -336379186, now seen corresponding path program 1 times [2021-03-24 12:27:27,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 12:27:27,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716759028] [2021-03-24 12:27:27,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 12:27:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 12:27:27,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 12:27:27,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 12:27:27,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 12:27:27,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 12:27:27,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 12:27:27,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 12:27:27,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716759028] [2021-03-24 12:27:27,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 12:27:27,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 12:27:27,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950720357] [2021-03-24 12:27:27,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 12:27:27,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 12:27:27,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 12:27:27,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-24 12:27:27,388 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 142 [2021-03-24 12:27:27,390 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 55 transitions, 113 flow. Second operand has 6 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 12:27:27,390 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 12:27:27,390 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 142 [2021-03-24 12:27:27,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 12:27:27,548 INFO L129 PetriNetUnfolder]: 41/237 cut-off events. [2021-03-24 12:27:27,548 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 12:27:27,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 237 events. 41/237 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1185 event pairs, 10 based on Foata normal form. 93/325 useless extension candidates. Maximal degree in co-relation 332. Up to 34 conditions per place. [2021-03-24 12:27:27,550 INFO L132 encePairwiseOnDemand]: 125/142 looper letters, 14 selfloop transitions, 2 changer transitions 36/77 dead transitions. [2021-03-24 12:27:27,550 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 77 transitions, 257 flow [2021-03-24 12:27:27,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 12:27:27,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 12:27:27,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 982 transitions. [2021-03-24 12:27:27,564 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5762910798122066 [2021-03-24 12:27:27,565 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 982 transitions. [2021-03-24 12:27:27,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 982 transitions. [2021-03-24 12:27:27,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 12:27:27,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 982 transitions. [2021-03-24 12:27:27,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 81.83333333333333) internal successors, (982), 12 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 12:27:27,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 142.0) internal successors, (1846), 13 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 12:27:27,583 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 142.0) internal successors, (1846), 13 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 12:27:27,586 INFO L185 Difference]: Start difference. First operand has 50 places, 55 transitions, 113 flow. Second operand 12 states and 982 transitions. [2021-03-24 12:27:27,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 77 transitions, 257 flow [2021-03-24 12:27:27,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 77 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 12:27:27,591 INFO L241 Difference]: Finished difference. Result has 67 places, 41 transitions, 104 flow [2021-03-24 12:27:27,592 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=104, PETRI_PLACES=67, PETRI_TRANSITIONS=41} [2021-03-24 12:27:27,593 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 17 predicate places. [2021-03-24 12:27:27,593 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 41 transitions, 104 flow [2021-03-24 12:27:27,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 12:27:27,593 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 12:27:27,593 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 12:27:27,593 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 12:27:27,594 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 12:27:27,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 12:27:27,594 INFO L82 PathProgramCache]: Analyzing trace with hash 471293895, now seen corresponding path program 1 times [2021-03-24 12:27:27,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 12:27:27,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38918497] [2021-03-24 12:27:27,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 12:27:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 12:27:27,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 12:27:27,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 12:27:27,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 12:27:27,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 12:27:27,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-24 12:27:27,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 12:27:27,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 12:27:27,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38918497] [2021-03-24 12:27:27,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 12:27:27,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 12:27:27,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213741609] [2021-03-24 12:27:27,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 12:27:27,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 12:27:27,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 12:27:27,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 12:27:27,697 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 142 [2021-03-24 12:27:27,698 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 41 transitions, 104 flow. Second operand has 5 states, 5 states have (on average 72.2) internal successors, (361), 5 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 12:27:27,698 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 12:27:27,698 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 142 [2021-03-24 12:27:27,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 12:27:27,750 INFO L129 PetriNetUnfolder]: 0/45 cut-off events. [2021-03-24 12:27:27,751 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-24 12:27:27,752 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 45 events. 0/45 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 7/52 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-03-24 12:27:27,752 INFO L132 encePairwiseOnDemand]: 137/142 looper letters, 10 selfloop transitions, 5 changer transitions 0/41 dead transitions. [2021-03-24 12:27:27,752 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 41 transitions, 134 flow [2021-03-24 12:27:27,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 12:27:27,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 12:27:27,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 367 transitions. [2021-03-24 12:27:27,754 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5169014084507042 [2021-03-24 12:27:27,754 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 367 transitions. [2021-03-24 12:27:27,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 367 transitions. [2021-03-24 12:27:27,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 12:27:27,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 367 transitions. [2021-03-24 12:27:27,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 73.4) internal successors, (367), 5 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 12:27:27,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 12:27:27,757 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 12:27:27,757 INFO L185 Difference]: Start difference. First operand has 67 places, 41 transitions, 104 flow. Second operand 5 states and 367 transitions. [2021-03-24 12:27:27,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 41 transitions, 134 flow [2021-03-24 12:27:27,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 41 transitions, 118 flow, removed 6 selfloop flow, removed 8 redundant places. [2021-03-24 12:27:27,759 INFO L241 Difference]: Finished difference. Result has 49 places, 41 transitions, 98 flow [2021-03-24 12:27:27,759 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=98, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2021-03-24 12:27:27,760 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2021-03-24 12:27:27,760 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 98 flow [2021-03-24 12:27:27,761 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 72.2) internal successors, (361), 5 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 12:27:27,761 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 12:27:27,763 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 12:27:27,764 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 12:27:27,764 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 12:27:27,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 12:27:27,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1283476203, now seen corresponding path program 1 times [2021-03-24 12:27:27,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 12:27:27,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622961183] [2021-03-24 12:27:27,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 12:27:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 12:27:27,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 12:27:27,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 12:27:27,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 12:27:27,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 12:27:27,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 12:27:27,898 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-03-24 12:27:27,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 12:27:27,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 12:27:27,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 12:27:27,934 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-03-24 12:27:27,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 12:27:27,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 12:27:27,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 12:27:27,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 12:27:27,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 12:27:27,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 12:27:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 12:27:28,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622961183] [2021-03-24 12:27:28,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 12:27:28,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 12:27:28,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534369300] [2021-03-24 12:27:28,003 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 12:27:28,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 12:27:28,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 12:27:28,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-03-24 12:27:28,008 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 142 [2021-03-24 12:27:28,009 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 98 flow. Second operand has 13 states, 13 states have (on average 65.76923076923077) internal successors, (855), 13 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 12:27:28,009 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 12:27:28,009 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 142 [2021-03-24 12:27:28,009 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 12:27:28,286 INFO L129 PetriNetUnfolder]: 0/44 cut-off events. [2021-03-24 12:27:28,287 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-24 12:27:28,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 44 events. 0/44 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 0 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-03-24 12:27:28,287 INFO L132 encePairwiseOnDemand]: 125/142 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2021-03-24 12:27:28,287 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 40 transitions, 140 flow [2021-03-24 12:27:28,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 12:27:28,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 12:27:28,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1175 transitions. [2021-03-24 12:27:28,291 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45970266040688573 [2021-03-24 12:27:28,291 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1175 transitions. [2021-03-24 12:27:28,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1175 transitions. [2021-03-24 12:27:28,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 12:27:28,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1175 transitions. [2021-03-24 12:27:28,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 65.27777777777777) internal successors, (1175), 18 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 12:27:28,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 142.0) internal successors, (2698), 19 states have internal predecessors, (2698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 12:27:28,300 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 142.0) internal successors, (2698), 19 states have internal predecessors, (2698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 12:27:28,300 INFO L185 Difference]: Start difference. First operand has 49 places, 41 transitions, 98 flow. Second operand 18 states and 1175 transitions. [2021-03-24 12:27:28,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 40 transitions, 140 flow [2021-03-24 12:27:28,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 40 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-24 12:27:28,301 INFO L241 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2021-03-24 12:27:28,302 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2021-03-24 12:27:28,302 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 12 predicate places. [2021-03-24 12:27:28,302 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2021-03-24 12:27:28,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 65.76923076923077) internal successors, (855), 13 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 12:27:28,303 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 12:27:28,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 12:27:28 BasicIcfg [2021-03-24 12:27:28,306 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 12:27:28,310 INFO L168 Benchmark]: Toolchain (without parser) took 3924.78 ms. Allocated memory was 255.9 MB in the beginning and 490.7 MB in the end (delta: 234.9 MB). Free memory was 235.3 MB in the beginning and 411.4 MB in the end (delta: -176.1 MB). Peak memory consumption was 58.4 MB. Max. memory is 16.0 GB. [2021-03-24 12:27:28,311 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.4 MB in the end (delta: 174.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 12:27:28,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.11 ms. Allocated memory was 255.9 MB in the beginning and 408.9 MB in the end (delta: 153.1 MB). Free memory was 235.3 MB in the beginning and 372.4 MB in the end (delta: -137.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-24 12:27:28,312 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.83 ms. Allocated memory is still 408.9 MB. Free memory was 372.4 MB in the beginning and 370.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 12:27:28,312 INFO L168 Benchmark]: Boogie Preprocessor took 25.67 ms. Allocated memory is still 408.9 MB. Free memory was 370.7 MB in the beginning and 369.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 12:27:28,313 INFO L168 Benchmark]: RCFGBuilder took 569.11 ms. Allocated memory is still 408.9 MB. Free memory was 369.2 MB in the beginning and 381.0 MB in the end (delta: -11.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.0 GB. [2021-03-24 12:27:28,315 INFO L168 Benchmark]: TraceAbstraction took 2816.92 ms. Allocated memory was 408.9 MB in the beginning and 490.7 MB in the end (delta: 81.8 MB). Free memory was 380.2 MB in the beginning and 411.4 MB in the end (delta: -31.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 16.0 GB. [2021-03-24 12:27:28,320 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.4 MB in the end (delta: 174.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 462.11 ms. Allocated memory was 255.9 MB in the beginning and 408.9 MB in the end (delta: 153.1 MB). Free memory was 235.3 MB in the beginning and 372.4 MB in the end (delta: -137.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 42.83 ms. Allocated memory is still 408.9 MB. Free memory was 372.4 MB in the beginning and 370.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.67 ms. Allocated memory is still 408.9 MB. Free memory was 370.7 MB in the beginning and 369.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 569.11 ms. Allocated memory is still 408.9 MB. Free memory was 369.2 MB in the beginning and 381.0 MB in the end (delta: -11.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2816.92 ms. Allocated memory was 408.9 MB in the beginning and 490.7 MB in the end (delta: 81.8 MB). Free memory was 380.2 MB in the beginning and 411.4 MB in the end (delta: -31.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1483.1ms, 84 PlacesBefore, 50 PlacesAfterwards, 89 TransitionsBefore, 55 TransitionsAfterwards, 1386 CoEnabledTransitionPairs, 5 FixpointIterations, 26 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 43 TotalNumberOfCompositions, 1020 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 530, positive: 508, positive conditional: 0, positive unconditional: 508, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 374, positive: 367, positive conditional: 0, positive unconditional: 367, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 374, positive: 367, positive conditional: 0, positive unconditional: 367, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 530, positive: 141, positive conditional: 0, positive unconditional: 141, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 374, unknown conditional: 0, unknown unconditional: 374] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 39, Positive conditional cache size: 0, Positive unconditional cache size: 39, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - PositiveResult [Line: 684]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2709.8ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 570.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1552.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 32 SDtfs, 81 SDslu, 120 SDs, 0 SdLazy, 198 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 136.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 383.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=0, InterpolantAutomatonStates: 35, 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: 13.8ms SsaConstructionTime, 85.8ms SatisfiabilityAnalysisTime, 354.6ms InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 584 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...