./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 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_32107c78-0b01-485f-90a9-5b0d357b09bd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_32107c78-0b01-485f-90a9-5b0d357b09bd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_32107c78-0b01-485f-90a9-5b0d357b09bd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_32107c78-0b01-485f-90a9-5b0d357b09bd/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/WhileFalse.c -s /tmp/vcloud-vcloud-master/worker/run_dir_32107c78-0b01-485f-90a9-5b0d357b09bd/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_32107c78-0b01-485f-90a9-5b0d357b09bd/bin/uautomizer --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 0.1.24-6b5699a [2019-11-25 08:57:24,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:57:24,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:57:24,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:57:24,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:57:24,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:57:24,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:57:24,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:57:24,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:57:24,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:57:24,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:57:24,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:57:24,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:57:24,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:57:24,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:57:24,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:57:24,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:57:24,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:57:24,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:57:24,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:57:24,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:57:24,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:57:24,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:57:24,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:57:24,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:57:24,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:57:24,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:57:24,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:57:24,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:57:24,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:57:24,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:57:24,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:57:24,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:57:24,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:57:24,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:57:24,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:57:24,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:57:24,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:57:24,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:57:24,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:57:24,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:57:24,520 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_32107c78-0b01-485f-90a9-5b0d357b09bd/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:57:24,535 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:57:24,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:57:24,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:57:24,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:57:24,536 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:57:24,536 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:57:24,537 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:57:24,537 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:57:24,537 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:57:24,537 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:57:24,537 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:57:24,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:57:24,538 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:57:24,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:57:24,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:57:24,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:57:24,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:57:24,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:57:24,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:57:24,539 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:57:24,539 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:57:24,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:57:24,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:57:24,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:57:24,540 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:57:24,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:57:24,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:57:24,540 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:57:24,541 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:57:24,541 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_32107c78-0b01-485f-90a9-5b0d357b09bd/bin/uautomizer 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 [2019-11-25 08:57:24,671 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:57:24,685 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:57:24,687 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:57:24,689 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:57:24,695 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:57:24,696 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_32107c78-0b01-485f-90a9-5b0d357b09bd/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/WhileFalse.c [2019-11-25 08:57:24,751 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_32107c78-0b01-485f-90a9-5b0d357b09bd/bin/uautomizer/data/07735430a/99e14af5aa39432bbb63d77c1fb87b1c/FLAG2532f0cf8 [2019-11-25 08:57:25,082 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:57:25,083 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_32107c78-0b01-485f-90a9-5b0d357b09bd/sv-benchmarks/c/termination-crafted/WhileFalse.c [2019-11-25 08:57:25,089 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_32107c78-0b01-485f-90a9-5b0d357b09bd/bin/uautomizer/data/07735430a/99e14af5aa39432bbb63d77c1fb87b1c/FLAG2532f0cf8 [2019-11-25 08:57:25,562 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_32107c78-0b01-485f-90a9-5b0d357b09bd/bin/uautomizer/data/07735430a/99e14af5aa39432bbb63d77c1fb87b1c [2019-11-25 08:57:25,564 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:57:25,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:57:25,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:25,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:57:25,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:57:25,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:25" (1/1) ... [2019-11-25 08:57:25,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@309fec6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:25, skipping insertion in model container [2019-11-25 08:57:25,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:25" (1/1) ... [2019-11-25 08:57:25,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:57:25,595 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:57:25,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:25,773 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:57:25,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:25,853 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:57:25,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:25 WrapperNode [2019-11-25 08:57:25,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:25,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:25,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:57:25,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:57:25,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:25" (1/1) ... [2019-11-25 08:57:25,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:25" (1/1) ... [2019-11-25 08:57:25,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:25,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:57:25,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:57:25,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:57:25,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:25" (1/1) ... [2019-11-25 08:57:25,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:25" (1/1) ... [2019-11-25 08:57:25,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:25" (1/1) ... [2019-11-25 08:57:25,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:25" (1/1) ... [2019-11-25 08:57:25,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:25" (1/1) ... [2019-11-25 08:57:25,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:25" (1/1) ... [2019-11-25 08:57:25,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:25" (1/1) ... [2019-11-25 08:57:25,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:57:25,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:57:25,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:57:25,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:57:25,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_32107c78-0b01-485f-90a9-5b0d357b09bd/bin/uautomizer/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 [2019-11-25 08:57:25,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:57:25,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:57:26,038 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:57:26,038 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-25 08:57:26,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:26 BoogieIcfgContainer [2019-11-25 08:57:26,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:57:26,040 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:57:26,040 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:57:26,043 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:57:26,044 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:26,044 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:57:25" (1/3) ... [2019-11-25 08:57:26,045 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@599552db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:57:26, skipping insertion in model container [2019-11-25 08:57:26,045 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:26,045 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:25" (2/3) ... [2019-11-25 08:57:26,046 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@599552db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:57:26, skipping insertion in model container [2019-11-25 08:57:26,046 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:57:26,046 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:26" (3/3) ... [2019-11-25 08:57:26,048 INFO L371 chiAutomizerObserver]: Analyzing ICFG WhileFalse.c [2019-11-25 08:57:26,107 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:57:26,107 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:57:26,107 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:57:26,107 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:57:26,108 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:57:26,108 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:57:26,108 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:57:26,108 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:57:26,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-11-25 08:57:26,134 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:57:26,134 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:26,134 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:26,140 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:57:26,141 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:57:26,141 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:57:26,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-11-25 08:57:26,142 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:57:26,142 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:57:26,142 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:57:26,142 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:57:26,142 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:57:26,148 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res; 6#L14-2true [2019-11-25 08:57:26,148 INFO L796 eck$LassoCheckResult]: Loop: 6#L14-2true assume !!(0 != ~unnamed0~0~false); 6#L14-2true [2019-11-25 08:57:26,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:26,153 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-25 08:57:26,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:26,160 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847142432] [2019-11-25 08:57:26,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:26,233 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:26,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:26,234 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-11-25 08:57:26,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:26,234 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289279683] [2019-11-25 08:57:26,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:26,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:26,251 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289279683] [2019-11-25 08:57:26,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:26,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2019-11-25 08:57:26,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692121155] [2019-11-25 08:57:26,259 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:57:26,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:26,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:57:26,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:57:26,277 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 2 states. [2019-11-25 08:57:26,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:26,282 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-11-25 08:57:26,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:57:26,285 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 5 transitions. [2019-11-25 08:57:26,286 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:57:26,289 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2019-11-25 08:57:26,290 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:57:26,290 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:57:26,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:57:26,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:57:26,294 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:57:26,294 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:57:26,294 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:57:26,294 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:57:26,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:57:26,294 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:57:26,295 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:57:26,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:57:26 BoogieIcfgContainer [2019-11-25 08:57:26,301 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:57:26,302 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:57:26,302 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:57:26,303 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:57:26,303 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:26" (3/4) ... [2019-11-25 08:57:26,306 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:57:26,307 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:57:26,310 INFO L168 Benchmark]: Toolchain (without parser) took 742.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -123.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:26,311 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:26,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -155.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:26,313 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.26 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:26,314 INFO L168 Benchmark]: Boogie Preprocessor took 19.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:26,314 INFO L168 Benchmark]: RCFGBuilder took 132.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:26,315 INFO L168 Benchmark]: BuchiAutomizer took 261.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:26,316 INFO L168 Benchmark]: Witness Printer took 4.44 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:26,324 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 287.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -155.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.26 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 132.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 261.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.44 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 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...