./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/WhileFalse.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/WhileFalse.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9f15d52494f2bb20316f0c01d603c20e3274fba8 ................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:33:40,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:33:40,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:33:40,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:33:40,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:33:40,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:33:40,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:33:40,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:33:40,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:33:40,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:33:40,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:33:40,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:33:40,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:33:40,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:33:40,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:33:40,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:33:40,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:33:40,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:33:40,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:33:40,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:33:40,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:33:40,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:33:40,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:33:40,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:33:40,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:33:40,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:33:40,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:33:40,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:33:40,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:33:40,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:33:40,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:33:40,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:33:40,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:33:40,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:33:40,117 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:33:40,117 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:33:40,118 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:33:40,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:33:40,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:33:40,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:33:40,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:33:40,122 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:33:40,175 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:33:40,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:33:40,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:33:40,177 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:33:40,177 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:33:40,178 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:33:40,178 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:33:40,178 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:33:40,178 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:33:40,179 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:33:40,180 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:33:40,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:33:40,180 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:33:40,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:33:40,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:33:40,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:33:40,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:33:40,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:33:40,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:33:40,182 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:33:40,182 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:33:40,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:33:40,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:33:40,183 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:33:40,183 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:33:40,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:33:40,184 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:33:40,184 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:33:40,184 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:33:40,186 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:33:40,186 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f15d52494f2bb20316f0c01d603c20e3274fba8 [2020-10-20 06:33:40,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:33:40,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:33:40,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:33:40,422 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:33:40,423 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:33:40,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/WhileFalse.c [2020-10-20 06:33:40,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0907518e/2314951814a54c628f43ee9dda5ed6df/FLAG8b906722f [2020-10-20 06:33:41,031 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:33:41,032 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/WhileFalse.c [2020-10-20 06:33:41,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0907518e/2314951814a54c628f43ee9dda5ed6df/FLAG8b906722f [2020-10-20 06:33:41,454 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0907518e/2314951814a54c628f43ee9dda5ed6df [2020-10-20 06:33:41,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:33:41,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:33:41,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:33:41,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:33:41,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:33:41,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c622767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41, skipping insertion in model container [2020-10-20 06:33:41,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:33:41,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:33:41,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:33:41,659 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:33:41,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:33:41,680 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:33:41,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41 WrapperNode [2020-10-20 06:33:41,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:33:41,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:33:41,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:33:41,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:33:41,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:33:41,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:33:41,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:33:41,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:33:41,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:33:41,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:33:41,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:33:41,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:33:41,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (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:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:41,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:33:41,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:33:41,913 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:33:41,913 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-20 06:33:41,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:33:41 BoogieIcfgContainer [2020-10-20 06:33:41,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:33:41,917 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:33:41,917 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:33:41,921 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:33:41,922 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:33:41,922 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:33:41" (1/3) ... [2020-10-20 06:33:41,924 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32217498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:33:41, skipping insertion in model container [2020-10-20 06:33:41,924 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:33:41,924 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (2/3) ... [2020-10-20 06:33:41,925 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32217498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:33:41, skipping insertion in model container [2020-10-20 06:33:41,925 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:33:41,925 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:33:41" (3/3) ... [2020-10-20 06:33:41,927 INFO L373 chiAutomizerObserver]: Analyzing ICFG WhileFalse.c [2020-10-20 06:33:41,987 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:33:41,987 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:33:41,987 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:33:41,987 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:33:41,987 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:33:41,987 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:33:41,987 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:33:41,988 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:33:42,000 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-20 06:33:42,020 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:33:42,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:33:42,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:33:42,026 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:33:42,027 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:33:42,027 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:33:42,027 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-20 06:33:42,028 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:33:42,028 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:33:42,028 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:33:42,028 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:33:42,028 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:33:42,034 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res; 6#L14-2true [2020-10-20 06:33:42,035 INFO L796 eck$LassoCheckResult]: Loop: 6#L14-2true assume !!(0 != ~unnamed0~0~false); 6#L14-2true [2020-10-20 06:33:42,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:42,041 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-20 06:33:42,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:42,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743626753] [2020-10-20 06:33:42,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:42,119 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:42,121 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:42,144 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:42,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:42,145 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-10-20 06:33:42,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:42,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692397267] [2020-10-20 06:33:42,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:42,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:33:42,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692397267] [2020-10-20 06:33:42,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:33:42,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-10-20 06:33:42,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680850852] [2020-10-20 06:33:42,175 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 06:33:42,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:33:42,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 06:33:42,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 06:33:42,195 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 2 states. [2020-10-20 06:33:42,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:33:42,201 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2020-10-20 06:33:42,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 06:33:42,203 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 5 transitions. [2020-10-20 06:33:42,204 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:33:42,207 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2020-10-20 06:33:42,208 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:33:42,209 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:33:42,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:33:42,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:33:42,209 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:33:42,210 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:33:42,210 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:33:42,210 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:33:42,210 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:33:42,210 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:33:42,211 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:33:42,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:33:42 BoogieIcfgContainer [2020-10-20 06:33:42,216 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:33:42,217 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:33:42,217 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:33:42,217 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:33:42,218 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:33:41" (3/4) ... [2020-10-20 06:33:42,221 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:33:42,221 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:33:42,224 INFO L168 Benchmark]: Toolchain (without parser) took 764.29 ms. Allocated memory was 39.8 MB in the beginning and 42.5 MB in the end (delta: 2.6 MB). Free memory was 17.6 MB in the beginning and 18.2 MB in the end (delta: -657.2 kB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:33:42,225 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 30.9 MB. Free memory was 6.1 MB in the beginning and 6.1 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-20 06:33:42,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.30 ms. Allocated memory was 39.8 MB in the beginning and 40.9 MB in the end (delta: 1.0 MB). Free memory was 16.6 MB in the beginning and 18.1 MB in the end (delta: -1.5 MB). Peak memory consumption was 7.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:33:42,228 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.20 ms. Allocated memory is still 40.9 MB. Free memory was 18.1 MB in the beginning and 16.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:33:42,229 INFO L168 Benchmark]: Boogie Preprocessor took 15.16 ms. Allocated memory is still 40.9 MB. Free memory was 16.6 MB in the beginning and 15.6 MB in the end (delta: 978.3 kB). Peak memory consumption was 978.3 kB. Max. memory is 14.3 GB. [2020-10-20 06:33:42,230 INFO L168 Benchmark]: RCFGBuilder took 189.26 ms. Allocated memory was 40.9 MB in the beginning and 42.5 MB in the end (delta: 1.6 MB). Free memory was 15.4 MB in the beginning and 22.8 MB in the end (delta: -7.4 MB). Peak memory consumption was 4.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:33:42,231 INFO L168 Benchmark]: BuchiAutomizer took 299.96 ms. Allocated memory is still 42.5 MB. Free memory was 22.6 MB in the beginning and 18.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:33:42,232 INFO L168 Benchmark]: Witness Printer took 4.68 ms. Allocated memory is still 42.5 MB. Free memory was 18.7 MB in the beginning and 18.2 MB in the end (delta: 471.6 kB). Peak memory consumption was 471.6 kB. Max. memory is 14.3 GB. [2020-10-20 06:33:42,237 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 30.9 MB. Free memory was 6.1 MB in the beginning and 6.1 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 215.30 ms. Allocated memory was 39.8 MB in the beginning and 40.9 MB in the end (delta: 1.0 MB). Free memory was 16.6 MB in the beginning and 18.1 MB in the end (delta: -1.5 MB). Peak memory consumption was 7.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 29.20 ms. Allocated memory is still 40.9 MB. Free memory was 18.1 MB in the beginning and 16.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 15.16 ms. Allocated memory is still 40.9 MB. Free memory was 16.6 MB in the beginning and 15.6 MB in the end (delta: 978.3 kB). Peak memory consumption was 978.3 kB. Max. memory is 14.3 GB. * RCFGBuilder took 189.26 ms. Allocated memory was 40.9 MB in the beginning and 42.5 MB in the end (delta: 1.6 MB). Free memory was 15.4 MB in the beginning and 22.8 MB in the end (delta: -7.4 MB). Peak memory consumption was 4.9 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 299.96 ms. Allocated memory is still 42.5 MB. Free memory was 22.6 MB in the beginning and 18.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 14.3 GB. * Witness Printer took 4.68 ms. Allocated memory is still 42.5 MB. Free memory was 18.7 MB in the beginning and 18.2 MB in the end (delta: 471.6 kB). Peak memory consumption was 471.6 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic). 1 modules have a trivial ranking function, the largest among these consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...