/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 21:34:17,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 21:34:17,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 21:34:17,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 21:34:17,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 21:34:17,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 21:34:17,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 21:34:17,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 21:34:17,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 21:34:17,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 21:34:17,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 21:34:17,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 21:34:17,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 21:34:17,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 21:34:17,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 21:34:17,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 21:34:17,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 21:34:17,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 21:34:17,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 21:34:17,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 21:34:17,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 21:34:17,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 21:34:17,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 21:34:17,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 21:34:17,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-11 21:34:17,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 21:34:17,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 21:34:17,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 21:34:17,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 21:34:17,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 21:34:17,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 21:34:17,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 21:34:17,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 21:34:17,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 21:34:17,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 21:34:17,104 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 21:34:17,105 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-FA-SemanticLbe.epf [2020-11-11 21:34:17,134 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 21:34:17,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 21:34:17,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 21:34:17,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 21:34:17,136 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 21:34:17,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 21:34:17,137 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 21:34:17,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 21:34:17,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 21:34:17,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 21:34:17,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 21:34:17,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 21:34:17,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 21:34:17,139 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 21:34:17,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 21:34:17,139 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 21:34:17,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 21:34:17,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 21:34:17,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 21:34:17,141 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 21:34:17,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 21:34:17,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 21:34:17,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 21:34:17,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 21:34:17,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 21:34:17,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 21:34:17,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 21:34:17,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 21:34:17,143 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 21:34:17,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 21:34:17,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 21:34:17,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 21:34:17,543 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 21:34:17,546 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 21:34:17,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2020-11-11 21:34:17,665 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f9c859b9/047a35d2155445f48caedc2a96113703/FLAGd12387cc3 [2020-11-11 21:34:18,619 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 21:34:18,620 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2020-11-11 21:34:18,652 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f9c859b9/047a35d2155445f48caedc2a96113703/FLAGd12387cc3 [2020-11-11 21:34:18,837 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f9c859b9/047a35d2155445f48caedc2a96113703 [2020-11-11 21:34:18,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 21:34:18,853 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 21:34:18,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 21:34:18,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 21:34:18,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 21:34:18,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:34:18" (1/1) ... [2020-11-11 21:34:18,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@356c194a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:34:18, skipping insertion in model container [2020-11-11 21:34:18,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:34:18" (1/1) ... [2020-11-11 21:34:18,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 21:34:18,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 21:34:19,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 21:34:19,477 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 21:34:19,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 21:34:19,701 INFO L208 MainTranslator]: Completed translation [2020-11-11 21:34:19,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:34:19 WrapperNode [2020-11-11 21:34:19,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 21:34:19,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 21:34:19,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 21:34:19,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 21:34:19,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:34:19" (1/1) ... [2020-11-11 21:34:19,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:34:19" (1/1) ... [2020-11-11 21:34:19,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 21:34:19,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 21:34:19,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 21:34:19,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 21:34:19,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:34:19" (1/1) ... [2020-11-11 21:34:19,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:34:19" (1/1) ... [2020-11-11 21:34:19,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:34:19" (1/1) ... [2020-11-11 21:34:19,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:34:19" (1/1) ... [2020-11-11 21:34:19,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:34:19" (1/1) ... [2020-11-11 21:34:19,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:34:19" (1/1) ... [2020-11-11 21:34:19,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:34:19" (1/1) ... [2020-11-11 21:34:19,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 21:34:19,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 21:34:19,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 21:34:19,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 21:34:19,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:34:19" (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 [2020-11-11 21:34:19,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 21:34:19,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 21:34:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-11 21:34:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-11-11 21:34:19,901 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-11-11 21:34:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-11-11 21:34:19,901 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-11-11 21:34:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 21:34:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-11 21:34:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 21:34:19,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 21:34:19,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 21:34:19,904 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 21:34:20,457 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 21:34:20,457 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-11 21:34:20,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:34:20 BoogieIcfgContainer [2020-11-11 21:34:20,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 21:34:20,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 21:34:20,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 21:34:20,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 21:34:20,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 09:34:18" (1/3) ... [2020-11-11 21:34:20,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f7ca6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:34:20, skipping insertion in model container [2020-11-11 21:34:20,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:34:19" (2/3) ... [2020-11-11 21:34:20,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f7ca6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:34:20, skipping insertion in model container [2020-11-11 21:34:20,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:34:20" (3/3) ... [2020-11-11 21:34:20,470 INFO L111 eAbstractionObserver]: Analyzing ICFG sync01.i [2020-11-11 21:34:20,487 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 21:34:20,488 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 21:34:20,492 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 21:34:20,493 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 21:34:20,538 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,539 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,539 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,539 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,540 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,540 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,541 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,541 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,541 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,543 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,543 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,543 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,544 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,545 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,545 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,545 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,546 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,546 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,546 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,546 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,547 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,547 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,547 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,547 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,547 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,548 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,548 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,548 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,548 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,549 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,549 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,549 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,550 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,550 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,550 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,550 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,551 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,551 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,551 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,551 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,551 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,554 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,555 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,555 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,555 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,555 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,555 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,556 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,563 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,563 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,564 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,564 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,564 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,564 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,565 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 21:34:20,579 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-11-11 21:34:20,594 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-11 21:34:20,622 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 21:34:20,622 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 21:34:20,622 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 21:34:20,622 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 21:34:20,623 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 21:34:20,623 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 21:34:20,623 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 21:34:20,623 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 21:34:20,640 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-11 21:34:20,642 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 100 transitions, 222 flow [2020-11-11 21:34:20,646 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 100 transitions, 222 flow [2020-11-11 21:34:20,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 100 transitions, 222 flow [2020-11-11 21:34:20,715 INFO L129 PetriNetUnfolder]: 7/100 cut-off events. [2020-11-11 21:34:20,716 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-11-11 21:34:20,721 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 100 events. 7/100 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 59. Up to 3 conditions per place. [2020-11-11 21:34:20,724 INFO L116 LiptonReduction]: Number of co-enabled transitions 840 [2020-11-11 21:34:22,381 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-11-11 21:34:25,044 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-11-11 21:34:25,390 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2020-11-11 21:34:25,501 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-11-11 21:34:25,967 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-11 21:34:26,098 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-11-11 21:34:26,235 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-11 21:34:26,364 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-11-11 21:34:27,068 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 142 [2020-11-11 21:34:27,376 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-11-11 21:34:28,075 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 142 [2020-11-11 21:34:28,401 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-11-11 21:34:29,570 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 175 DAG size of output: 171 [2020-11-11 21:34:30,146 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-11-11 21:34:31,351 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 175 DAG size of output: 171 [2020-11-11 21:34:31,912 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-11-11 21:34:31,919 INFO L131 LiptonReduction]: Checked pairs total: 3690 [2020-11-11 21:34:31,919 INFO L133 LiptonReduction]: Total number of compositions: 82 [2020-11-11 21:34:31,926 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 34 transitions, 90 flow [2020-11-11 21:34:31,950 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 198 states, 196 states have (on average 2.5255102040816326) internal successors, (495), 197 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) [2020-11-11 21:34:31,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 2.5255102040816326) internal successors, (495), 197 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) [2020-11-11 21:34:31,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-11 21:34:31,978 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 21:34:31,979 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 21:34:31,983 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 21:34:31,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 21:34:31,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1916352312, now seen corresponding path program 1 times [2020-11-11 21:34:32,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 21:34:32,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797202127] [2020-11-11 21:34:32,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 21:34:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 21:34:32,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 21:34:32,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797202127] [2020-11-11 21:34:32,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 21:34:32,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-11 21:34:32,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273716593] [2020-11-11 21:34:32,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-11 21:34:32,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 21:34:32,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-11 21:34:32,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-11 21:34:32,332 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 2.5255102040816326) internal successors, (495), 197 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) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:34:32,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 21:34:32,362 INFO L93 Difference]: Finished difference Result 198 states and 455 transitions. [2020-11-11 21:34:32,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-11 21:34:32,364 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2020-11-11 21:34:32,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 21:34:32,380 INFO L225 Difference]: With dead ends: 198 [2020-11-11 21:34:32,381 INFO L226 Difference]: Without dead ends: 197 [2020-11-11 21:34:32,382 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-11 21:34:32,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-11-11 21:34:32,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2020-11-11 21:34:32,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 2.316326530612245) internal successors, (454), 196 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:34:32,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 454 transitions. [2020-11-11 21:34:32,451 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 454 transitions. Word has length 15 [2020-11-11 21:34:32,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 21:34:32,452 INFO L481 AbstractCegarLoop]: Abstraction has 197 states and 454 transitions. [2020-11-11 21:34:32,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:34:32,453 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 454 transitions. [2020-11-11 21:34:32,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-11 21:34:32,456 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 21:34:32,456 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 21:34:32,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 21:34:32,457 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 21:34:32,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 21:34:32,458 INFO L82 PathProgramCache]: Analyzing trace with hash -718210961, now seen corresponding path program 1 times [2020-11-11 21:34:32,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 21:34:32,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041654660] [2020-11-11 21:34:32,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 21:34:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 21:34:32,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 21:34:32,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041654660] [2020-11-11 21:34:32,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 21:34:32,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-11 21:34:32,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246475031] [2020-11-11 21:34:32,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-11 21:34:32,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 21:34:32,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-11 21:34:32,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 21:34:32,549 INFO L87 Difference]: Start difference. First operand 197 states and 454 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:34:32,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 21:34:32,577 INFO L93 Difference]: Finished difference Result 107 states and 223 transitions. [2020-11-11 21:34:32,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-11 21:34:32,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2020-11-11 21:34:32,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 21:34:32,580 INFO L225 Difference]: With dead ends: 107 [2020-11-11 21:34:32,580 INFO L226 Difference]: Without dead ends: 107 [2020-11-11 21:34:32,581 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 21:34:32,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-11-11 21:34:32,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-11-11 21:34:32,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 2.1037735849056602) internal successors, (223), 106 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:34:32,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 223 transitions. [2020-11-11 21:34:32,593 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 223 transitions. Word has length 21 [2020-11-11 21:34:32,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 21:34:32,593 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 223 transitions. [2020-11-11 21:34:32,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:34:32,593 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 223 transitions. [2020-11-11 21:34:32,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-11 21:34:32,595 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 21:34:32,595 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 21:34:32,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 21:34:32,596 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 21:34:32,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 21:34:32,597 INFO L82 PathProgramCache]: Analyzing trace with hash 720647765, now seen corresponding path program 2 times [2020-11-11 21:34:32,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 21:34:32,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413040687] [2020-11-11 21:34:32,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 21:34:32,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 21:34:32,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 21:34:32,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413040687] [2020-11-11 21:34:32,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 21:34:32,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-11 21:34:32,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100858037] [2020-11-11 21:34:32,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-11 21:34:32,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 21:34:32,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-11 21:34:32,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-11 21:34:32,728 INFO L87 Difference]: Start difference. First operand 107 states and 223 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:34:32,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 21:34:32,841 INFO L93 Difference]: Finished difference Result 95 states and 177 transitions. [2020-11-11 21:34:32,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-11 21:34:32,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2020-11-11 21:34:32,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 21:34:32,843 INFO L225 Difference]: With dead ends: 95 [2020-11-11 21:34:32,844 INFO L226 Difference]: Without dead ends: 95 [2020-11-11 21:34:32,844 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-11 21:34:32,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-11-11 21:34:32,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2020-11-11 21:34:32,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 94 states have (on average 1.8829787234042554) internal successors, (177), 94 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:34:32,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 177 transitions. [2020-11-11 21:34:32,866 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 177 transitions. Word has length 21 [2020-11-11 21:34:32,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 21:34:32,866 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 177 transitions. [2020-11-11 21:34:32,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:34:32,867 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 177 transitions. [2020-11-11 21:34:32,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-11 21:34:32,869 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 21:34:32,870 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 21:34:32,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 21:34:32,872 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 21:34:32,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 21:34:32,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1049771643, now seen corresponding path program 3 times [2020-11-11 21:34:32,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 21:34:32,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640898667] [2020-11-11 21:34:32,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 21:34:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 21:34:32,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 21:34:32,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640898667] [2020-11-11 21:34:32,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 21:34:32,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-11 21:34:32,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969893654] [2020-11-11 21:34:32,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-11 21:34:32,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 21:34:32,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-11 21:34:32,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-11 21:34:32,964 INFO L87 Difference]: Start difference. First operand 95 states and 177 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:34:33,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 21:34:33,037 INFO L93 Difference]: Finished difference Result 80 states and 137 transitions. [2020-11-11 21:34:33,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-11 21:34:33,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2020-11-11 21:34:33,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 21:34:33,039 INFO L225 Difference]: With dead ends: 80 [2020-11-11 21:34:33,039 INFO L226 Difference]: Without dead ends: 80 [2020-11-11 21:34:33,040 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-11 21:34:33,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-11-11 21:34:33,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-11-11 21:34:33,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.7341772151898733) internal successors, (137), 79 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:34:33,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 137 transitions. [2020-11-11 21:34:33,046 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 137 transitions. Word has length 21 [2020-11-11 21:34:33,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 21:34:33,046 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 137 transitions. [2020-11-11 21:34:33,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:34:33,046 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 137 transitions. [2020-11-11 21:34:33,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-11 21:34:33,047 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 21:34:33,047 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 21:34:33,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 21:34:33,048 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 21:34:33,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 21:34:33,048 INFO L82 PathProgramCache]: Analyzing trace with hash 495464009, now seen corresponding path program 4 times [2020-11-11 21:34:33,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 21:34:33,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481458231] [2020-11-11 21:34:33,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 21:34:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 21:34:33,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 21:34:33,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481458231] [2020-11-11 21:34:33,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 21:34:33,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-11 21:34:33,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993235418] [2020-11-11 21:34:33,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 21:34:33,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 21:34:33,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 21:34:33,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-11 21:34:33,161 INFO L87 Difference]: Start difference. First operand 80 states and 137 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:34:33,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 21:34:33,229 INFO L93 Difference]: Finished difference Result 74 states and 122 transitions. [2020-11-11 21:34:33,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 21:34:33,230 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2020-11-11 21:34:33,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 21:34:33,231 INFO L225 Difference]: With dead ends: 74 [2020-11-11 21:34:33,231 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 21:34:33,231 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-11-11 21:34:33,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 21:34:33,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 21:34:33,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:34:33,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 21:34:33,232 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-11-11 21:34:33,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 21:34:33,232 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 21:34:33,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 21:34:33,232 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 21:34:33,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 21:34:33,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 21:34:33,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 09:34:33 BasicIcfg [2020-11-11 21:34:33,236 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 21:34:33,238 INFO L168 Benchmark]: Toolchain (without parser) took 14391.97 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 277.3 MB in the beginning and 187.6 MB in the end (delta: 89.7 MB). Peak memory consumption was 226.4 MB. Max. memory is 16.0 GB. [2020-11-11 21:34:33,239 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 21:34:33,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 846.81 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 263.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 42.1 MB. Max. memory is 16.0 GB. [2020-11-11 21:34:33,241 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.54 ms. Allocated memory is still 302.0 MB. Free memory was 262.8 MB in the beginning and 260.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 21:34:33,241 INFO L168 Benchmark]: Boogie Preprocessor took 34.75 ms. Allocated memory is still 302.0 MB. Free memory was 260.7 MB in the beginning and 259.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 21:34:33,242 INFO L168 Benchmark]: RCFGBuilder took 658.08 ms. Allocated memory is still 302.0 MB. Free memory was 259.7 MB in the beginning and 231.4 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-11-11 21:34:33,243 INFO L168 Benchmark]: TraceAbstraction took 12774.85 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 230.3 MB in the beginning and 187.6 MB in the end (delta: 42.7 MB). Peak memory consumption was 178.0 MB. Max. memory is 16.0 GB. [2020-11-11 21:34:33,247 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 846.81 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 263.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 42.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 62.54 ms. Allocated memory is still 302.0 MB. Free memory was 262.8 MB in the beginning and 260.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.75 ms. Allocated memory is still 302.0 MB. Free memory was 260.7 MB in the beginning and 259.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 658.08 ms. Allocated memory is still 302.0 MB. Free memory was 259.7 MB in the beginning and 231.4 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 12774.85 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 230.3 MB in the beginning and 187.6 MB in the end (delta: 42.7 MB). Peak memory consumption was 178.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 602 VarBasedMoverChecksPositive, 52 VarBasedMoverChecksNegative, 21 SemBasedMoverChecksPositive, 31 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 196 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 11.2s, 99 PlacesBefore, 35 PlacesAfterwards, 100 TransitionsBefore, 34 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 82 TotalNumberOfCompositions, 3690 MoverChecksTotal - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.3s, HoareTripleCheckerStatistics: 134 SDtfs, 90 SDslu, 176 SDs, 0 SdLazy, 101 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 4176 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 correct! Received shutdown request...